CN215120448U - Conveyor belt energy recovery device - Google Patents

Abstract

The utility model relates to a belt conveyor technical field, concretely relates to conveyer belt energy recuperation equipment includes the roller, the back shaft, electricity generation subassembly and rotational speed detection subassembly, the cavity that has the axial that link up along the roller in the roller, the cavity has relative first end and second end in the axial of roller, the back shaft passes the cavity in order to support the roller along the axial of roller, the roller is rotatable for the back shaft, electricity generation subassembly is established in the cavity, electricity generation subassembly includes the permanent magnetism ring, stator core and the stator coil of winding on the stator core, the stator core cover is established on the back shaft, the permanent magnetism ring encircles the stator coil periphery and rotatable along with the roller, rotational speed detection subassembly is established in the cavity, a rotational speed for detecting the roller. The utility model discloses a conveyer belt energy recuperation equipment can realize the energy recuperation of conveyer belt, still avoids the external environment to detect the interference to the roller rotational speed, improve equipment operation's stability.

Description

Conveyor belt energy recovery device

Technical Field

The utility model relates to a belt conveyor technical field, concretely relates to conveyer belt energy recuperation equipment.

Background

The conveyor belt conveyor is widely applied to industries such as coal, mines, ports, metallurgy, manufacturing and the like. The speed regulation of the process of conveying materials by the conveying belt is indispensable, the traditional mechanism speed reduction mode is a mechanical or hydraulic pressurization braking mode, kinetic energy is converted into heat energy through a braking mechanism and is consumed, and meanwhile, the friction surface of the mechanism correspondingly has certain material loss.

In the related art, a gravitational potential energy recovery and power transmission device for a mineral aggregate conveyor belt is provided, energy recovery and current conversion of the conveyor belt are realized by arranging a power generation roller and an inverter, however, the inventor of the application finds that in the related art, the rotating speed detection of the power generation roller is arranged outside the roller and is easily influenced by the external environment, so that the detection accuracy is influenced.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a conveyer belt energy recuperation equipment can realize the energy recuperation of conveyer belt, still avoids the external environment to detect the interference to roller rotational speed, improve equipment operation's stability.

According to the utility model discloses conveyer belt energy recuperation equipment, include: the roller is internally provided with a chamber which penetrates along the axial direction of the roller, and the chamber is provided with a first end and a second end which are opposite in the axial direction of the roller; a support shaft passing through the chamber in an axial direction of the roll drum to support the roll drum, the roll drum being rotatable with respect to the support shaft; the power generation assembly is arranged in the cavity and comprises a permanent magnet ring, a stator core and a stator coil wound on the stator core, the stator core is sleeved on the supporting shaft, and the permanent magnet ring surrounds the periphery of the stator coil and can rotate along with the roller; and the rotating speed detection assembly is arranged in the cavity and used for detecting the rotating speed of the roller.

According to the utility model discloses conveyer belt energy recuperation equipment can realize the energy recuperation of conveyer belt, still avoids the external environment to detect the interference, improve equipment operation's stability to roller rotational speed.

In some embodiments, the rotation speed detecting assembly includes a hall sensor connected to the support shaft and a permanent magnet installed on the drum.

In some embodiments, an inverter is included in communication with the power generation assembly, the inverter being mounted on the support shaft and spaced from the power generation assembly in an axial direction of the support shaft.

In some embodiments, a mounting bracket is included, the mounting bracket being mounted on the support shaft, the inverter and the hall sensor being mounted on the mounting bracket.

In some embodiments, the conveyor belt energy recovery device further comprises a first explosion-proof component and a second explosion-proof component, the first explosion-proof component is arranged at the first end of the chamber, and the second explosion-proof component is arranged at the second end of the chamber.

In some embodiments, the first flameproof component comprises a first flameproof sleeve and an annular seat, the annular seat is arranged in the first flameproof sleeve, the first flameproof sleeve is matched with the first end of the cavity and abuts against the first end face of the roller, the outer periphery of the first flameproof sleeve is in contact with the inner periphery of the roller, the outer periphery of the annular seat is in contact with the inner periphery of the first flameproof sleeve, the annular seat is sleeved on the support shaft, and the annular seat and the stator coil are arranged at intervals in the axial direction of the support shaft.

In some embodiments, the permanent magnet ring is disposed within the first flameproof sleeve.

In some embodiments, an accommodating cavity is formed in the annular seat, a first bearing is arranged in the accommodating cavity, the first bearing is sleeved on the supporting shaft, the first explosion-proof assembly further comprises a spacer sleeve, the spacer sleeve is sleeved on the supporting shaft, a first end of the spacer sleeve abuts against an inner ring of the first bearing, and a second end of the spacer sleeve abuts against the stator core.

In some embodiments, the first flameproof component further includes a first dust ring arranged in the accommodating cavity, and the first dust ring is sleeved on the spacer and located between the first bearing and the annular seat.

In some embodiments, the second explosion-proof component comprises a second explosion-proof sleeve, a shaft sleeve, a second bearing and a second dustproof ring, wherein the shaft sleeve is arranged in the second explosion-proof sleeve, the second explosion-proof sleeve is matched with the second end of the cavity and abuts against the second end face of the roller, the periphery of the second explosion-proof sleeve is in contact with the inner periphery of the roller, the shaft sleeve is arranged on the supporting shaft, the second bearing is arranged on the shaft sleeve, the second dustproof ring is sleeved on the shaft sleeve, and the second dustproof ring is arranged on the second bearing away from one side of the rotation speed detection component.

Drawings

Fig. 1 is a schematic structural diagram of a conveyor belt energy recovery apparatus according to an embodiment of the present invention.

Reference numerals:

the length of the roll 1, the chamber 101,

the support shaft 2 is provided with a plurality of support holes,

the flame-proof device comprises a first flame-proof component 3, a first flame-proof sleeve 301, a first annular flange 3011, an annular seat 302, a containing cavity 3021, a spacer 303, a first dust-proof ring 304, a first bearing 305,

a second explosion-proof component 4, a second explosion-proof sleeve 401, a shaft sleeve 402, a second bearing 403, a second dust ring 404,

a first seal seat 5, a second seal seat 6, an annular mounting portion 601,

a power generation assembly 7, a permanent magnet ring 701, a stator core 702,

rotating speed detection assembly 8, Hall sensor 801, permanent magnet 802 and mounting frame 803

Inverter 9, first lip seal 10, second lip seal 11.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the conveyor belt energy recovery apparatus according to the embodiment of the present invention includes a roller 1, a support shaft 2, a power generation assembly 7, and a rotation speed detection assembly 8.

The roll 1 has a chamber 101 penetrating therein in the axial direction of the roll 1 (the left-right direction as viewed in fig. 1), and the chamber 101 has a first end (the left end of the roll 1 as viewed in fig. 1) and a second end (the right end of the roll 1 as viewed in fig. 1) opposite in the axial direction of the roll 1.

A support shaft 2 passes through the chamber 101 in the axial direction of the roll 1 to support the roll 1, and the roll 1 is rotatable with respect to the support shaft 2.

Specifically, as shown in fig. 1, the supporting shaft 2 is coaxially arranged with the roller 1, the left end and the right end of the supporting shaft 2 extend out of the chamber 101, and the left end and the right end of the supporting shaft 2 are both provided with mounting holes, through which the supporting shaft 2 can be connected with an external device so as to fix the supporting shaft 2.

The power generation assembly 7 is arranged in the cavity 101, the power generation assembly 7 comprises a permanent magnet ring 701, a stator core 702 and a stator coil wound on the stator core 702, the stator core 702 is sleeved on the support shaft 2, and the permanent magnet ring 701 surrounds the periphery of the stator coil and can rotate along with the roller 1.

Specifically, as shown in fig. 1, the power generation assembly 7, the first explosion-proof assembly 3 and the second explosion-proof assembly 4 are arranged at intervals in the left-right direction, and the power generation assembly 7 is arranged between the first explosion-proof assembly 3 and the second explosion-proof assembly 4. The stator core 702 is sleeved on the support shaft 2 through a mounting sleeve, the mounting sleeve is sleeved on the support shaft 2, and the stator core 702 is connected with the mounting sleeve through a key.

The rotating speed detection assembly 8 is arranged in the chamber 101 and is used for detecting the rotating speed of the roller 1.

According to the utility model discloses conveyer belt energy recuperation equipment can realize the energy recuperation of conveyer belt through setting up electricity generation subassembly 7, establishes rotational speed detection subassembly in cavity 101, can reduce the influence of external environment to the rotational speed detection subassembly 8 that is located cavity 101, improves the accuracy that roller 1 rotational speed detected.

In some embodiments, the rotation speed detecting assembly includes a hall sensor 801 and a permanent magnet 802, the hall sensor 801 is connected to the supporting shaft 2, and the permanent magnet 802 is mounted on the drum 1.

Specifically, as shown in fig. 1, a hall sensor 801 is fixed on the support shaft 2, a mounting hole is provided on the roller 1, a permanent magnet 802 is provided in the mounting hole, and the hall sensor 801 and the permanent magnet 802 are opposite in the up-down direction.

In some embodiments, an inverter 9 connected to the power generation module 7 is included, and the inverter 9 is mounted on the support shaft 2 and arranged at a distance from the power generation module 7 in the axial direction of the support shaft 2.

Specifically, as shown in fig. 1, an inverter 9 is provided on the right side of the power generation module 7, and the inverter 9 converts direct current power output from the power generation module 7 into alternating current power. It can be understood that the output power of the inverter 9 can be adjusted according to actual needs, and the model of the inverter 9 in the embodiment of the present invention is not particularly limited.

In some embodiments, a mounting block 803 is included, the mounting block 803 is mounted on the support shaft 2, and the inverter 9 and the hall sensor 801 are mounted on the mounting block 803.

Specifically, as shown in fig. 1, the mounting bracket 803 is fitted over the support shaft 2, the inverter 9 is provided at an upper end of the mounting bracket 803, and the hall sensor 801 is provided at a lower end of the mounting bracket 803.

In some embodiments, the conveyor belt energy recovery device further includes a first explosion-proof assembly 3 and a second explosion-proof assembly 4, the first explosion-proof assembly 3 is disposed at a first end of the chamber 101, and the second explosion-proof assembly 4 is disposed at a second end of the chamber 101.

The embodiment of the utility model provides a, both ends about sealed cavity 101 respectively through first flame proof subassembly 3 and second flame proof subassembly 4 reach the effect of flame proof, improve equipment operation's security still can reduce the influence of external environment to power generation subassembly 7 and rotational speed detection subassembly 8 in the cavity 101, improve equipment operation's stability.

In some embodiments, the first flameproof assembly 3 includes a first flameproof sleeve 301 and an annular seat 302, the annular seat 302 is disposed in the first flameproof sleeve 301, the first flameproof sleeve 301 is fitted to the first end of the chamber 101 and abuts against the first end surface of the roller 1, an outer periphery of the first flameproof sleeve 301 contacts with an inner periphery of the roller 1, an outer periphery of the annular seat 302 contacts with an inner periphery of the first flameproof sleeve 301, the annular seat 302 is sleeved on the support shaft 2, and the annular seat 302 and the stator coil 2 are arranged at intervals in an axial direction of the support shaft 2.

Specifically, the left end of the first flameproof sleeve 301 is provided with a first annular flange 3011, the right end face of the first annular flange 3011 abuts against the left end face of the roller 1, the annular seat 302 is arranged at the left end of the first flameproof sleeve 301, the left end of the annular seat 302 is provided with a hole circlip, the hole circlip is used for limiting the axial movement of the annular seat 302, the sealing performance of the left end of the chamber 101 is improved, and the running stability of the device is improved.

In some embodiments, the permanent magnet ring 701 is disposed within the first flameproof sleeve 301.

Specifically, as shown in fig. 1, a permanent magnet ring 701 is provided at the right end of the first flameproof sleeve 301, the inner circumferential surface of the permanent magnet ring 701 is flush with the inner circumferential surface of the first flameproof sleeve 301, the dimension of the permanent magnet ring 701 in the left-right direction is smaller than the dimension of the stator core 702 in the left-right direction, the permanent magnet ring 701 and the stator coil are arranged in opposition in the up-down direction, and the dimension of the permanent magnet ring 701 in the left-right direction is smaller than the dimension of the stator coil in the left-right direction.

In some embodiments, an accommodating cavity 3021 is formed in the annular seat 302, a first bearing 305 is formed in the accommodating cavity 3021, the first bearing 305 is sleeved on the support shaft 2, the first flameproof assembly 3 further includes a spacer 303, the spacer 303 is sleeved on the support shaft 2, a first end of the spacer 303 abuts against an inner ring of the first bearing 305, and a second end of the spacer 303 abuts against the stator core 702.

In some embodiments, the belt energy recovery apparatus further includes a first sealing seat 5, the first sealing seat 5 is disposed on the supporting shaft 2, the first sealing seat 5 is used for sealing the first end of the chamber 101, the first sealing seat 5 is disposed in the accommodating cavity 3021, the first sealing seat 5 is disposed on a side away from the power generation assembly 7, and the second end of the first sealing seat 5 abuts against the outer ring of the first bearing 305.

Specifically, as shown in fig. 1, the first bearing 305 and the first seal housing 5 are both disposed in the accommodating cavity 3021, the first bearing 305 is located at the right side of the first seal housing 5, and the right end of the first seal housing 5 abuts against the left end of the first bearing 305. The embodiment of the utility model provides a through setting up first seal receptacle 5, through the leakproofness that improves the cavity 101 left end to improve flame proof performance, improve equipment operation's security and stability through setting up first bearing 305, guarantee that first flame proof subassembly 3 steadily rotates on back shaft 2, improve equipment operating stability.

The left end of the spacer 303 extends into the annular seat 302, the left end of the spacer 303 abuts against the right end of the first bearing 305, and the right end of the spacer 303 is in contact with the left end of the mounting sleeve. The embodiment of the utility model provides a through setting up spacer 303, with first flame proof subassembly 3 and stator core 702 interval on the left right direction, avoid first flame proof subassembly 3 and stator core 702 to bump, improve the security and the stability of equipment operation.

It should be noted that a cavity is arranged at the left end of the first seal holder 5, an axial elastic retaining ring is arranged in the cavity, the axial elastic retaining ring is sleeved on the support shaft 2, and the axial elastic retaining ring is used for fixing the axial position of the first seal holder 5, so that the first seal holder 5 is prevented from moving in the axial direction, and the running stability of the device is improved.

A first lip-shaped sealing ring 10 is further arranged in a cavity at the left end of the first sealing seat 5, the first lip-shaped sealing ring 10 is sleeved on the supporting shaft 2, and the left end face of the first lip-shaped sealing ring 10 is flush with the left end face of the first sealing seat 5.

The embodiment of the utility model provides a seal through setting up first lip, seal the left end of first seal receptacle 5, still can improve the leakproofness to cavity 101.

In some embodiments, the first flameproof assembly 3 further includes a first dust ring 304 disposed in the accommodating cavity 3021, and the first dust ring 304 is disposed on the spacer 303 and between the first bearing 305 and the annular seat 302.

Specifically, as shown in fig. 1, the first dust ring 304 is disposed in the accommodating cavity 3021, the first dust ring 304 is disposed on the right side of the first bearing 305, the left end of the first dust ring 304 contacts with the right end face of the first bearing 305, and the left end of the first dust ring 304 abuts against the outer ring of the first bearing 305. The embodiment of the utility model provides a through setting up first dust collar 304, avoid outside dust to get into inside cavity 101, reduced external environment to the influence of electricity generation subassembly 7 and rotational speed detection subassembly 8, improve equipment operation's stability and security.

In some embodiments, the second flameproof assembly 4 includes a second flameproof sleeve 401, a shaft sleeve 402, a second bearing 403, and a second dust ring 404, the shaft sleeve 402 is disposed in the second flameproof sleeve 401, the second flameproof sleeve 401 is fitted to the second end of the chamber 101 and abuts against the second end face of the roller 1, an outer periphery of the second flameproof sleeve 401 contacts with an inner periphery of the roller 1, the shaft sleeve 402 is sleeved on the support shaft 2, the second bearing 403 is sleeved on the shaft sleeve 402, the second dust ring 404 is sleeved on the shaft sleeve 402, and the second dust ring 404 is disposed on a side of the second bearing 403 away from the rotation speed detecting assembly 8.

In some embodiments, the energy recovery device further comprises a second sealing seat 6, the second sealing seat 6 is sleeved on the shaft sleeve 402, the second sealing seat 6 is used for sealing the second end of the chamber 101, and the second sealing seat 6 and the second bearing 403 are arranged at a distance in the axial direction of the roller 1

It should be noted that the shaft sleeve 402 is sleeved on the support shaft 2, the shaft sleeve 402 is stationary relative to the support shaft 2, and the second flameproof sleeve 401 rotates relative to the shaft sleeve 402.

Specifically, as shown in fig. 1, the second bearing 403 is disposed on the left side of the second seal holder 6, the second bearing 403 and the second seal holder 6 are arranged at an interval in the left-right direction, the outer periphery of the second bearing 403 contacts with the inner periphery of the second flameproof sleeve 401, and the left end of the second bearing 403 is further provided with a circlip for shaft, so that the bearing is prevented from moving to the left by the circlip for shaft.

Preferably, the outer periphery of the sleeve 402 is provided with an annular groove, and the circlip for shaft at the left end of the second bearing 403 is provided in the annular groove of the sleeve 402, thereby defining the position of the circlip for shaft in the left-right direction

Specifically, as shown in fig. 1, the right end of the second flameproof sleeve 401 is provided with a second annular flange, the left end face of the second annular flange is only abutted against the right end face of the roller 1, the inside step portion of the second flameproof sleeve 401, the periphery of the second seal holder 6 is provided with an annular mounting portion 601, the left end face of the annular mounting portion 601 of the second seal holder 6 is only abutted against the step portion of the second flameproof sleeve 401, the inside of the second flameproof sleeve 401 is further provided with an annular groove, the annular groove of the second flameproof sleeve 401 is arranged on the right side of the step portion, the annular groove of the second flameproof sleeve 401 is internally provided with a hole circlip, and the left end face of the hole circlip is in contact with the right end face of the second seal holder 6.

It should be noted that a cavity is arranged at the right end of the second seal holder 6, a second lip-shaped seal ring 11 is arranged in the cavity, the second lip-shaped seal ring 11 is sleeved on the shaft sleeve 402, and the right end surface of the second lip-shaped seal ring 11 is flush with the right end surface of the second seal holder 6.

The embodiment of the utility model provides a, annular installation department 601 of second seal receptacle 6 and the inside step portion butt of second flame proof sleeve 401, the right-hand member face contact of circlip for the hole and second seal receptacle 6 can inject the ascending position of second seal receptacle 6 about, avoids second seal receptacle 6 to take place the removal of direction about, improves the leakproofness of cavity 101, reaches the effect of flame proof, still can avoid the influence of external environment to electricity generation subassembly 7 and rotational speed detection subassembly 8.

Through establishing at second lip seal 11, seal the right-hand member of second seal receptacle 6, still can improve the leakproofness to cavity 101, further improved the flame proof effect.

Specifically, as shown in fig. 1, the second dust ring 404 is disposed between the second bearing 403 and the second seal holder 6, a left end surface of the second dust ring 404 is in contact with a right end surface of the second bearing 403, and a right end of the second dust ring 404 is in contact with a left end surface of the second seal holder 6.

The operation principle of the conveyor belt energy recovery apparatus according to the embodiment of the present invention is described below with reference to fig. 1.

Will the utility model discloses conveyer belt energy recuperation equipment is as for present or predetermined conveyer belt below, contact roller 1's outer peripheral face and the surface of conveyer belt, at conveyer belt moving in-process, the friction drives roller 1 and rotates between conveyer belt and the roller 1, roller 1 rotates and drives first flame proof sleeve 301 and second flame proof sleeve 401 and rotates, first flame proof sleeve 301 drives permanent magnetic ring 701 and rotates, permanent magnetic ring 701 cooperates and produces the electric energy at the pivoted in-process and stator coil, the electric energy passes through output energy recuperation equipment behind inverter 9's the conversion.

In the process of the rotation of the roller 1, the permanent magnet 802 can be driven to rotate at the same time, the permanent magnet 802 is matched with the Hall sensor 801 to realize the rotation speed detection of the roller 1, the rotation speed of the roller 1 is related to the rotation speed of the conveyor belt, and therefore the rotation speed of the conveyor belt can be detected.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A conveyor belt energy recovery apparatus, comprising:

the roller is internally provided with a chamber which penetrates along the axial direction of the roller, and the chamber is provided with a first end and a second end which are opposite in the axial direction of the roller;

a support shaft passing through the chamber in an axial direction of the roll drum to support the roll drum, the roll drum being rotatable with respect to the support shaft;

the power generation assembly is arranged in the cavity and comprises a permanent magnet ring, a stator core and a stator coil wound on the stator core, the stator core is sleeved on the supporting shaft, and the permanent magnet ring surrounds the periphery of the stator coil and can rotate along with the roller;

and the rotating speed detection assembly is arranged in the cavity and used for detecting the rotating speed of the roller.

2. The conveyor belt energy recovery apparatus of claim 1, wherein the speed detection assembly includes a hall sensor and a permanent magnet, the hall sensor being coupled to the support shaft, the permanent magnet being mounted on the roller.

3. A conveyor belt energy recovery apparatus as claimed in claim 2 including an inverter connected to said power generation assembly, said inverter being mounted on said support shaft and spaced from said power generation assembly in the axial direction of said support shaft.

4. A conveyor belt energy recovery apparatus as in claim 3 including a mounting bracket mounted on the support shaft, the inverter and the hall sensor being mounted on the mounting bracket.

5. The conveyor belt energy recovery device of claim 1, further comprising a first flameproof component and a second flameproof component, wherein the first flameproof component is disposed at a first end of the chamber, and the second flameproof component is disposed at a second end of the chamber.

6. The conveyor belt energy recovery device of claim 5, wherein the first explosion-proof assembly comprises a first explosion-proof sleeve and an annular seat, the annular seat is arranged in the first explosion-proof sleeve, the first explosion-proof sleeve is matched with the first end of the cavity and abuts against the first end face of the roller, the outer periphery of the first explosion-proof sleeve is in contact with the inner periphery of the roller, the outer periphery of the annular seat is in contact with the inner periphery of the first explosion-proof sleeve, the annular seat is sleeved on the support shaft, and the annular seat and the stator coil are arranged in the axial direction of the support shaft at intervals.

7. The conveyor belt energy recovery device of claim 6, wherein the permanent magnet ring is disposed within the first flameproof sleeve.

8. The conveyor belt energy recovery apparatus of claim 7, wherein an accommodating cavity is provided in the annular seat, a first bearing is provided in the accommodating cavity, the first bearing is sleeved on the support shaft,

the first explosion-proof assembly further comprises a spacer bush, the spacer bush is sleeved on the supporting shaft, the first end of the spacer bush abuts against the inner ring of the first bearing, and the second end of the spacer bush abuts against the stator core.

9. The conveyor belt energy recovery device of claim 8, wherein the first flameproof assembly further comprises a first dust ring disposed in the containment chamber, the first dust ring being sleeved on the spacer and located between the first bearing and the annular seat.

10. The conveyor belt energy recovery device of claim 5, wherein the second flameproof component comprises a second flameproof sleeve, a shaft sleeve, a second bearing and a second dust ring, the shaft sleeve is arranged in the second flameproof sleeve, the second flameproof sleeve is matched with the second end of the cavity and abuts against the second end face of the roller, the periphery of the second flameproof sleeve is in contact with the inner periphery of the roller, the shaft sleeve is arranged on the supporting shaft in a sleeved mode, the second bearing is arranged on the shaft sleeve in a sleeved mode, the second dust ring is arranged on the shaft sleeve in a sleeved mode, and the second dust ring is arranged on one side, away from the rotating speed detection component, of the second bearing.

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