Speed-adjustable long-shaft explosion-proof motor device

Abstract

The utility model discloses a speed-adjustable long shaft explosion-proof motor device, which comprises a power supply assembly, a control assembly, a lengthened shaft driving assembly and a heat dissipation assembly which are arranged in an explosion-proof box, the power supply assembly is electrically connected with the control assembly, the lengthened shaft driving assembly and the heat dissipation assembly, and the control assembly is electrically connected with the lengthened shaft driving assembly and the heat dissipation assembly; a motor of the lengthened shaft driving assembly is connected with a speed reducer, a lengthened shaft of the speed reducer is connected with an explosion-proof block, the lengthened shaft penetrates through the explosion-proof block and is located on the outer side of the explosion-proof box, and a cooling fan of the cooling assembly is arranged at the position, behind the motor, of the explosion-proof box. According to the speed-adjustable long-shaft explosion-proof motor device adopting the structure, the lengthened shaft penetrating through the explosion-proof box is directly connected with the equipment to be driven, connecting structures such as a coupler do not need to be used any more, it is avoided that static electricity and sparks generated by using the connecting structures possibly ignite explosive gas mixtures, and part cost and installation steps are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof motors, in particular to a speed-adjustable long-shaft explosion-proof motor device. Background Art

[0002] Flameproof motors use flameproof enclosures to separate electrical parts that may generate sparks, arcs, and dangerous temperatures from the surrounding explosive gas mixture. However, this enclosure is not sealed, and the surrounding explosive gas mixture can enter the motor through the gaps between the joint surfaces of the various parts of the enclosure. In addition, the motor and the driven equipment are driven through a coupling, which makes the connection complicated and increases the equipment cost. Utility Model Content

[0003] The purpose of the utility model is to provide a long-shaft explosion-proof motor device with adjustable speed, which adopts an extended shaft that penetrates the explosion-proof box to be directly connected to the device to be driven, without the need to use connecting structures such as couplings, thereby avoiding the possibility of static electricity and sparks generated by the use of the connecting structure to ignite the explosive gas mixture, saving parts costs and installation steps.

[0004] To achieve the above-mentioned purpose, the utility model provides an adjustable speed long-shaft explosion-proof motor device, including a power supply component, a control component, an extended shaft drive component and a heat dissipation component located inside an explosion-proof box, the power supply component is electrically connected to the control component, the extended shaft drive component and the heat dissipation component, and the control component is electrically connected to the extended shaft drive component and the heat dissipation component; the motor of the extended shaft drive assembly is connected to the reducer, the extended shaft of the reducer is connected to the explosion-proof block, the extended shaft passes through the explosion-proof block and is located outside the explosion-proof box, and the explosion-proof box is provided with a cooling fan of the heat dissipation component behind the motor.

[0005] Preferably, the power supply assembly includes a transformer and a power supply, the transformer is electrically connected to the motor, a control mainboard of the control assembly is provided below the motor, a touch screen of the control assembly is provided above the control mainboard, the motor controller of the control assembly is electrically connected to the motor, and the touch screen is tilted at the top of the explosion-proof box.

[0006] Preferably, the front side wall of the explosion-proof box is connected to the explosion-proof block, the front side of the explosion-proof box is provided with a mounting hole 1 matching the shape of the extended shaft, and the explosion-proof block is provided with a mounting hole 2 matching the shape of the extended shaft.

[0007] Preferably, a temperature sensor is provided inside the explosion-proof box, a lower heat sink is provided at the through hole at the bottom of the explosion-proof box, a rear heat sink is provided at the through hole at the upper rear side of the explosion-proof box, the rear heat sink is connected to a cooling fan, and the cooling fan and the motor are located on the same axis.

[0008] Preferably, a plurality of elastic feet are provided at the bottom of the explosion-proof box, and a cable introduction port connected to the cable is provided below the rear heat sink of the explosion-proof box.

[0009] Preferably, a sealing ring 1 is installed at the inner stop of the cable entry port, and a gasket and a compression nut are arranged outside the sealing ring 1.

[0010] Preferably, a sealing ring 2 is provided between the extended shaft and the mounting hole 1.

[0011] Preferably, hand-holding grooves are symmetrically provided on both sides of the bottom of the explosion-proof box.

[0012] Therefore, the utility model adopts a speed-adjustable long-axis explosion-proof motor device of the above structure, and its beneficial effects are:

[0013] 1. The power supply components, control components, extended shaft drive components and heat dissipation components are all placed inside the explosion-proof box. The combustible mixture cannot penetrate into the explosion-proof box to cause an internal explosion, and will not cause the ignition of an explosive environment formed by one or more gases or vapors outside. It can be used in dust-proof and moisture-proof environments requiring protection level IP66, and can also be used in explosive environments of Zone 1 / Zone 2 / Zone 20 / Zone 21 / Zone 22;

[0014] 2. The utility model adopts an extended shaft that passes through the explosion-proof box to be directly connected to the device to be driven, and there is no need to use a coupling or other connecting structure, thereby avoiding the possibility of static electricity and sparks generated by the connecting structure igniting the explosive gas mixture, saving parts costs and installation steps.

[0015] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a speed-adjustable long-shaft explosion-proof motor device of the utility model;

[0017] Figure 2 It is a top view of a speed-adjustable long-shaft explosion-proof motor device of the utility model;

[0018] Figure 3 It is a rear view of a speed-adjustable long-shaft explosion-proof motor device of the utility model;

[0019] Figure 4 It is a front side schematic diagram of a speed-adjustable long-shaft explosion-proof motor device (explosion-proof housing is not shown) of the utility model;

[0020] Figure 5 It is a schematic diagram of the rear side of a speed-adjustable long-shaft explosion-proof motor device (without the explosion-proof housing);

[0021] Figure 6 The utility model is a side sectional view of a speed-adjustable long-shaft explosion-proof motor device.

[0022] Reference numerals

[0023] 1. Explosion-proof box; 2. Motor; 3. Explosion-proof block; 4. Reducer; 5. Extension shaft; 6. Cooling fan; 7. Rear heat sink; 8. Power supply assembly; 9. Transformer; 10. Control main board; 11. Touch screen; 12. Motor controller; 13. Elastic feet; 14. Cable entry port; 15. Hand-held slot; 16. Lower heat sink. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] The present invention can be explained in more detail through the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention. The present invention is not limited to the following embodiments.

[0027] Example 1

[0028] like Figure 1-3 As shown, a speed-adjustable long-shaft explosion-proof motor device includes a power supply assembly 8, a control assembly, an extended shaft drive assembly, and a heat dissipation assembly located inside an explosion-proof box 1. The power supply assembly 8 is electrically connected to the control assembly, the extended shaft drive assembly, and the heat dissipation assembly, and the control assembly is electrically connected to the extended shaft drive assembly and the heat dissipation assembly. The motor 2 of the extended shaft drive assembly is connected to the reducer 4, and the extended shaft 5 of the reducer 4 is connected to the explosion-proof block 3. The extended shaft 5 passes through the explosion-proof block 3 and is located outside the explosion-proof box 1. The explosion-proof box 1 is provided with a heat dissipation fan 6 of the heat dissipation assembly behind the motor 2.

[0029] The power supply assembly 8 includes a transformer 9 and a power supply. The transformer 9 is electrically connected to the motor 2. A control mainboard 10 of the control assembly is provided below the motor 2. A touch screen 11 of the control assembly is provided above the motor 2. The motor controller 12 of the control assembly is electrically connected to the motor 2. The touch screen 11 is tiltedly arranged at the top of the explosion-proof box 1. The speed of the motor 2 is adjusted by the transformer 9 and the reducer 4, so that the speed of the motor 2 can be accurately controlled according to the use requirements.

[0030] like Figure 4-5 As shown, the explosion-proof box 1 and the explosion-proof block 3, the waterproof breathable membrane isolate the motor 2, the motor controller 12, the transformer 9, etc. inside the explosion-proof box 1 from the outside, and the combustible mixture cannot penetrate into the explosion-proof box 1 to cause an internal explosion, and will not cause the ignition of the explosive environment formed by one or more gases or vapors outside. The extended shaft 5 of the reducer 4 extends out of the explosion-proof box 1 and can be directly connected to the device to be driven, such as a peristaltic pump head, etc., without the need to use a coupling or other connecting structure for transmission, avoiding the possibility of static electricity and sparks generated by the connecting structure igniting the explosive gas mixture, and saving parts costs and installation steps.

[0031] When the temperature inside the explosion-proof box 1 rises, the cooling fan 6 is turned on to cool down the inside of the explosion-proof box 1 to ensure that the motor 2 works under a suitable temperature environment. The control mainboard 10 controls the motor 2 through the motor controller 12, and the power supply component 8 supplies power to various components inside the explosion-proof box 1. The working state of the motor 2 can be adjusted by touching the touch screen 11.

[0032] The front side wall of the explosion-proof box 1 is connected to the explosion-proof block 3, and the front side of the explosion-proof box 1 is provided with a mounting hole 1 that matches the shape of the extended shaft 5, and the explosion-proof block 3 is provided with a mounting hole 2 that matches the shape of the extended shaft 5. The connection between the mounting hole 1 and the mounting hole 2 and the extended shaft 5 is provided with bearings to ensure the smooth operation of the extended shaft 5.

[0033] like Figure 6 As shown, a temperature sensor is provided inside the explosion-proof box 1, a lower heat sink 16 is provided at the through hole at the bottom of the explosion-proof box 1, and a rear heat sink 7 is provided at the through hole at the upper rear side of the explosion-proof box 1. The rear heat sink 7 is connected to the cooling fan 6, and the cooling fan 6 and the motor 2 are located on the same axis. The temperature sensor monitors the temperature inside the explosion-proof box 1. When the temperature exceeds the control temperature of the motor 2, the cooling fan 6 is turned on to force the heat to be dissipated. A waterproof and breathable membrane is provided at the through hole, and the lower heat sink 16, the rear heat sink 7 and the cooling fan 6 cooperate with each other to quickly dissipate the heat inside the explosion-proof box 1. The position setting of the cooling fan 6 and the rear heat sink 7 ensures accurate heat dissipation of the motor 2.

[0034] A plurality of elastic feet 13 are provided at the bottom of the explosion-proof box 1, and a cable introduction port 14 connected to the cable is provided under the rear heat sink 7. The elastic feet 13 are rubber elastic feet 13 or polyurethane elastic feet 13, which can provide buffering for the explosion-proof box 1 when it is placed.

[0035] A sealing ring 1 is installed at the inner stop of the cable introduction port 14, and a washer and a compression nut are arranged outside the sealing ring 1. There are three cable introduction ports 14, and the cables are connected with the washer and the compression nut arranged outside the sealing ring 1 in sequence. After the cables are connected to the cable introduction ports 14, they are connected with the power supply component 8, the control component and the extended shaft drive component inside the explosion-proof box 1.

[0036] A sealing ring 2 is arranged between the extension shaft 5 and the mounting hole 1, and the connection between the sealing ring 2 and the bearing is a connection method in the prior art. The arrangement of the sealing ring 1 and the sealing ring 2 prevents dangerous substances from entering the explosion-proof box 1 through the gap during use.

[0037] Hand-holding grooves 15 are symmetrically arranged on both sides of the bottom of the explosion-proof box 1 , so that the user can quickly pick up the explosion-proof box 1 .

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A speed-adjustable long-axis explosion-proof motor device, characterized in that: It includes a power supply component, a control component, an extended shaft drive component and a heat dissipation component located inside the explosion-proof box. The power supply component is electrically connected to the control component, the extended shaft drive component and the heat dissipation component. The control component is electrically connected to the extended shaft drive component and the heat dissipation component. The motor of the extended shaft drive component is connected to the reducer, the extended shaft of the reducer is connected to the explosion-proof block, the extended shaft passes through the explosion-proof block and is located outside the explosion-proof box, and the explosion-proof box is provided with a cooling fan of the heat dissipation component behind the motor.

2. The speed-adjustable long-axis explosion-proof motor device according to claim 1, characterized in that: The power supply assembly includes a transformer and a power supply. The transformer is electrically connected to the motor. A control mainboard of the control assembly is provided below the motor, a touch screen of the control assembly is provided above the control mainboard, the motor controller of the control assembly is electrically connected to the motor, and the touch screen is tiltedly arranged on the top of the explosion-proof box.

3. The speed-adjustable long-axis explosion-proof motor device according to claim 1, characterized in that: The front side wall of the explosion-proof box is connected to the explosion-proof block. The front side of the explosion-proof box is provided with a first mounting hole matching the shape of the extended shaft, and the explosion-proof block is provided with a second mounting hole matching the shape of the extended shaft.

4. The speed-adjustable long-axis explosion-proof motor device according to claim 1, characterized in that: A temperature sensor is arranged inside the explosion-proof box, a lower heat sink is arranged at the through hole at the bottom of the explosion-proof box, a rear heat sink is arranged at the through hole at the upper rear side of the explosion-proof box, the rear heat sink is connected to a cooling fan, and the cooling fan and the motor are located on the same axis.

5. The speed-adjustable long-axis explosion-proof motor device according to claim 1, characterized in that: A plurality of elastic feet are arranged at the bottom of the explosion-proof box, and a cable introduction port connected with the cable is arranged below the rear heat sink of the explosion-proof box.

6. The speed-adjustable long-axis explosion-proof motor device according to claim 5, characterized in that: A sealing ring 1 is installed at the inner stop of the cable entry port, and a washer and a compression nut are arranged outside the sealing ring 1.

7. The speed-adjustable long-axis explosion-proof motor device according to claim 3 is characterized in that: A sealing ring 2 is arranged between the extended shaft and the mounting hole 1.

8. The speed-adjustable long-axis explosion-proof motor device according to claim 1, characterized in that: Hand-holding slots are symmetrically arranged on both sides of the bottom of the explosion-proof box.

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