Variable frequency motor with explosion-proof structure

Abstract

The utility model relates to the technical field of variable frequency motors, and discloses a variable frequency motor with an explosion-proof structure, which comprises a protection box, a cover plate is arranged at the top of the protection box, an end shell is arranged in the protection box, a sealing ring is fixedly connected outside the end shell, a bolt is arranged between the protection box and the end shell, and the end shell is fixedly connected with the cover plate. A variable frequency motor shell is arranged in the end shell, an output shaft is fixedly connected to the output end of the variable frequency motor shell, a movable heat dissipation mechanism is arranged outside the protection box, an auxiliary protection mechanism is arranged at the bottom of the protection box, and in the using process, the filter plate is conveniently limited through sliding of the filter plate and rotation of a two-way threaded rod; water in a protection box is filtered, a first motor works and cooperates with a fixing rod, water in a connecting pipe can be fully cooled conveniently, a fixing block is made to move through movement of the protection box, and the vibration conditions caused by work of an output shaft or collision of the device can be buffered conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of variable frequency motors, in particular to a variable frequency motor with an explosion-proof structure. Background Art

[0002] A variable speed motor, also known as a variable frequency motor, is a motor that changes the motor's speed by changing the number of magnetic poles, voltage, current, frequency, etc., so that the motor can achieve higher performance.

[0003] According to the description of a variable speed motor with an explosion-proof structure disclosed in the patent website (authorization announcement number: CN 212784985U), "the present invention discloses a variable speed motor with an explosion-proof structure, which relates to the technical field of variable speed motors, specifically a variable speed motor body and a circulating heat dissipation mechanism. A rotating shaft is connected to the side of the variable speed motor body, an explosion-proof box is arranged at the bottom of the variable speed motor body, and a box cover is arranged on the top of the explosion-proof box. Sound insulation boards are arranged inside the explosion-proof box and inside the box cover, and the explosion-proof box is filled with water. The circulating heat dissipation mechanism is arranged on the outside of the explosion-proof box. The variable speed motor with an explosion-proof structure, the water body wraps the variable speed motor body to play an explosion-proof role while also playing a cooling role. The water body can absorb the heat dissipated by the variable speed motor body during operation, and then the water body is pumped out and transported to the inside of the plastic hose through a circulating water pump until it flows back to the inside of the explosion-proof box through the water inlet. The water body dissipates heat while being transported along the inside of the plastic hose, thereby playing a heat dissipation role, which is beneficial to avoid water accumulation."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use of the utility model, the two ends of the motor main shell are inserted into the end shell, and the sub-base at the bottom of the end shell is inserted into the slots on both sides of the main base through the side clips. In actual use, since the plastic hose of the device guides water and the plastic hose is exposed to the outside, it is easy to affect the heat exchange efficiency in summer or when the outside temperature is high, and it has certain limitations. In addition, the device is only installed for the variable frequency motor. When the variable frequency motor is in use or the device collides, it is easy to affect the service life of the variable frequency motor. Therefore, it is necessary to improve a variable frequency motor with an explosion-proof structure to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a variable frequency motor with an explosion-proof structure to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable frequency motor with an explosion-proof structure, comprising a protection box, a cover plate is arranged on the top of the protection box, an end shell is arranged inside the protection box, a sealing ring is fixedly connected to the outside of the end shell, bolts are arranged between the protection box and the end shell, a variable frequency motor housing is arranged inside the end shell, an output shaft is fixedly connected to the output end of the variable frequency motor housing, a movable heat dissipation mechanism is arranged outside the protection box, and an auxiliary protection mechanism is arranged at the bottom of the protection box;

[0008] The movable heat dissipation mechanism comprises an anti-blocking component and a heat dissipation component. The heat dissipation component is arranged on the front side of the protection box, and the anti-blocking component is arranged on the left side of the protection box.

[0009] Preferably, the anti-blocking component includes a water pump, which is fixedly connected to the left side of the protection box, a connecting pipe is fixedly connected to the outside of the water pump, a first connecting platform is fixedly connected to the front of the protection box, a second connecting platform is fixedly connected to the front of the protection box, a two-way threaded rod is rotatably connected to the inside of the first connecting platform, a limiting rod is fixedly connected to the inside of the second connecting platform, a splint is slidably connected to the outside of the limiting rod, and a filter plate is slidably connected to the inside of the connecting pipe, so as to limit the filter plate, filter the water inside the protection box, and facilitate the staff to handle it, thereby avoiding blockage.

[0010] Preferably, the clamping plate is threadedly connected to the bidirectional threaded rod, the clamping plate is slidably connected to the first connecting platform, the clamping plate is slidably connected to the second connecting platform, and the clamping plate is in contact with the filter plate, so as to facilitate a more stable filtering process.

[0011] Preferably, the heat dissipation assembly includes a guide rail, which is fixedly connected to the front side of the protection box, a slider is slidably connected inside the guide rail, a heat dissipation fan is fixedly connected to the bottom of the slider, a support base is fixedly connected to the front side of the protection box, a first motor is fixedly connected to the bottom of the support base, a fixing rod is fixedly connected to the output end of the first motor, and a rotating rod is rotatably connected to the outside of the fixed rod, so as to facilitate the sufficient cooling process of the water inside the connecting pipe, increase the cooling effect, and avoid high temperature of the variable frequency motor housing.

[0012] Preferably, grooves are provided at positions corresponding to the sliding block and the rotating rod, and the rotating rod is rotatably connected inside the groove, so that the explosion-proof process is more stable.

[0013] Preferably, the auxiliary protection mechanism includes a connecting box, which is slidably connected to the outside of the protection box, a sliding rod is fixedly connected to the inside of the connecting box, a spring is fixedly connected to the inside of the connecting box, a movable block is fixedly connected to one end of the spring away from the connecting box, a connecting plate is rotatably connected to the inside of the movable block, a fixed block is rotatably connected to the outside of the connecting plate, and a damping rod is fixedly connected to the inside of the connecting box, so as to buffer vibrations caused by the operation of the output shaft or collision of the device, thereby increasing the protection effect.

[0014] Preferably, the damping rod is fixedly connected to the protection box, the fixed block is fixedly connected to the cover plate, and the movable block is slidably connected to the sliding rod, so as to make the protection process more stable.

[0015] Compared with the prior art, the utility model provides a variable frequency motor with an explosion-proof structure, which has the following beneficial effects:

[0016] 1. The variable frequency motor with an explosion-proof structure has an active heat dissipation mechanism. During use, the filter plate slides and the bidirectional threaded rod rotates, which cooperates with the limit rod to limit the filter plate. This filters the water inside the protective box and facilitates the staff to handle it, avoiding blockage. The first motor works in cooperation with the fixing rod, which facilitates the sufficient cooling process of the water inside the connecting pipe, increases the cooling effect, and avoids high temperature of the variable frequency motor housing.

[0017] 2. The variable frequency motor with explosion-proof structure has an auxiliary protection mechanism. During use, the protection box moves to move the fixed block, which cooperates with the connecting plate to buffer the vibration caused by the output shaft working or the device being hit, thereby increasing the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the anti-blocking component of the utility model;

[0022] Figure 4This is a schematic diagram of the internal structure of the anti-blocking component of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the heat dissipation component of the utility model;

[0024] Figure 6 This is a schematic diagram of the auxiliary protection mechanism structure of the utility model.

[0025] In the figure: 1. protection box; 2. cover plate; 3. end shell; 4. sealing ring; 5. bolt; 6. frequency conversion motor housing; 7. output shaft; 8. movable heat dissipation mechanism; 81. anti-blocking component; 811. water pump; 812. connecting pipe; 813. first connecting platform; 814. second connecting platform; 815. clamping plate; 816. two-way threaded rod; 817. limit rod; 818. filter plate; 82. heat dissipation component; 821. guide rail; 822. slider; 823. heat dissipation fan; 824. support seat; 825. first motor; 826. fixed rod; 827. rotating rod; 9. auxiliary protection mechanism; 91. connecting box; 92. sliding rod; 93. spring; 94. movable block; 95. connecting plate; 96. fixed block; 97. damping rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] See also Figure 1-5The utility model provides a technical solution: a variable frequency motor with an explosion-proof structure, comprising a protection box 1, a cover plate 2 is arranged on the top of the protection box 1, an end shell 3 is arranged inside the protection box 1, a sealing ring 4 is fixedly connected to the outside of the end shell 3, a bolt 5 is arranged between the protection box 1 and the end shell 3, a variable frequency motor housing 6 is arranged inside the end shell 3, an output shaft 7 is fixedly connected to the output end of the variable frequency motor housing 6, an active heat dissipation mechanism 8 is arranged outside the protection box 1, and an auxiliary protection mechanism 9 is arranged at the bottom of the protection box 1;

[0030] The movable heat dissipation mechanism 8 includes an anti-blocking component 81 and a heat dissipation component 82 . The heat dissipation component 82 is arranged on the front of the protection box 1 , and the anti-blocking component 81 is arranged on the left side of the protection box 1 .

[0031] Furthermore, the anti-blocking component 81 includes a water pump 811, which is fixedly connected to the left side of the protection box 1. A connecting pipe 812 is fixedly connected to the outside of the water pump 811. A first connecting platform 813 is fixedly connected to the front of the protection box 1. A second connecting platform 814 is fixedly connected to the front of the protection box 1. A two-way threaded rod 816 is rotatably connected inside the first connecting platform 813. A limiting rod 817 is fixedly connected inside the second connecting platform 814. A splint 815 is slidably connected to the outside of the limiting rod 817. A filter plate 818 is slidably connected to the inside of the connecting pipe 812, which is convenient for limiting the filter plate 818, filtering the water inside the protection box 1 and facilitating processing by the staff to avoid blockage.

[0032] Furthermore, the clamping plate 815 is threadedly connected to the bidirectional threaded rod 816, the clamping plate 815 is slidingly connected to the first connecting platform 813, the clamping plate 815 is slidingly connected to the second connecting platform 814, and the clamping plate 815 is in contact with the filter plate 818, so as to make the filtering process more stable.

[0033] Furthermore, the heat dissipation assembly 82 includes a guide rail 821, which is fixedly connected to the front side of the protective box 1, a slider 822 is slidably connected inside the guide rail 821, a heat dissipation fan 823 is fixedly connected to the bottom of the slider 822, a support base 824 is fixedly connected to the front side of the protective box 1, a first motor 825 is fixedly connected to the bottom of the support base 824, a fixed rod 826 is fixedly connected to the output end of the first motor 825, and a rotating rod 827 is rotatably connected to the outside of the fixed rod 826, so as to fully cool down the water inside the connecting pipe 812, increase the cooling effect, and avoid high temperature of the variable frequency motor housing 6.

[0034] Furthermore, grooves are provided at positions corresponding to the sliding block 822 and the rotating rod 827, and the rotating rod 827 is rotatably connected inside the groove, so that the explosion-proof process is more stable.

[0035] Embodiment 2:

[0036] See also Figure 6, and combined with the first embodiment, it is further obtained that the auxiliary protection mechanism 9 includes a connecting box 91, the connecting box 91 is slidably connected to the outside of the protection box 1, the connecting box 91 is fixedly connected with a slide rod 92, the connecting box 91 is fixedly connected with a spring 93, the spring 93 is fixedly connected with a movable block 94 at one end away from the connecting box 91, the movable block 94 is rotatably connected with a connecting plate 95 inside, the connecting plate 95 is rotatably connected with a fixed block 96 outside, and the connecting box 91 is fixedly connected with a damping rod 97 inside, which is convenient for buffering vibrations caused by the operation of the output shaft 7 or the collision of the device, thereby increasing the protection effect.

[0037] Furthermore, the damping rod 97 is fixedly connected to the protection box 1, the fixed block 96 is fixedly connected to the cover plate 2, and the movable block 94 is slidably connected to the slide rod 92, so that the protection process is more stable.

[0038] During the actual operation, when the device is used, the variable frequency motor housing 6 is first connected to the end shell 3, and the variable frequency motor housing 6 is limited by the provided bolts 5. After the installation is completed, the protection box 1 is filled with water until the top of the variable frequency motor housing 6 is submerged. The provided water pump 811 works in conjunction with the connecting pipe 812 to make the water inside the protection box 1 flow, and the variable frequency motor housing 6 is subjected to explosion-proof and heat dissipation processes. The provided filter plate 818 slides, and the provided bidirectional threaded rod 816 rotates. , cooperate with the limit rod 817 to move the splint 815, and through the operation of the set first motor 825, cooperate with the fixed rod 826 to rotate the rotating rod 827, cooperate with the guide rail 821 to move the slider 822, thereby moving the cooling fan 823, and cooperate with the cooling fan 823 to work. When the output shaft 7 starts to work or the device collides, the set protective box 1 moves to move the fixed block 96, and cooperate with the connecting plate 95 to make the movable block 94 move outside the sliding rod 92, and cooperate with the spring 93 and the damping rod 97.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A variable frequency motor with an explosion-proof structure, comprising a protection box (1), characterized in that: The top of the protection box (1) is provided with a cover plate (2), the interior of the protection box (1) is provided with an end shell (3), the exterior of the end shell (3) is fixedly connected with a sealing ring (4), bolts (5) are provided between the protection box (1) and the end shell (3), the interior of the end shell (3) is provided with a variable frequency motor housing (6), the output end of the variable frequency motor housing (6) is fixedly connected with an output shaft (7), the exterior of the protection box (1) is provided with a movable heat dissipation mechanism (8), and the bottom of the protection box (1) is provided with an auxiliary protection mechanism (9); The movable heat dissipation mechanism (8) comprises an anti-blocking component (81) and a heat dissipation component (82); the heat dissipation component (82) is arranged on the front of the protection box (1), and the anti-blocking component (81) is arranged on the left side of the protection box (1).

2. The variable frequency motor with explosion-proof structure according to claim 1, characterized in that: The anti-blocking component (81) comprises a water pump (811), the water pump (811) being fixedly connected to the left side of the protection box (1), the water pump (811) being fixedly connected to a connecting pipe (812) on the outside, the protection box (1) being fixedly connected to a first connecting platform (813) on the front side, the protection box (1) being fixedly connected to a second connecting platform (814) on the front side, the first connecting platform (813) being rotatably connected to a bidirectional threaded rod (816) on the inside, the second connecting platform (814) being fixedly connected to a limiting rod (817) on the inside, the limiting rod (817) being slidably connected to a clamping plate (815) on the outside, and the connecting pipe (812) being slidably connected to a filter plate (818) on the inside.

3. The variable frequency motor with explosion-proof structure according to claim 2, characterized in that: The clamping plate (815) is threadedly connected to the bidirectional threaded rod (816), the clamping plate (815) is slidably connected to the first connecting platform (813), the clamping plate (815) is slidably connected to the second connecting platform (814), and the clamping plate (815) is in contact with the filter plate (818).

4. The variable frequency motor with explosion-proof structure according to claim 1, characterized in that: The heat dissipation assembly (82) comprises a guide rail (821), the guide rail (821) is fixedly connected to the front of the protection box (1), a slider (822) is slidably connected inside the guide rail (821), a heat dissipation fan (823) is fixedly connected to the bottom of the slider (822), a support base (824) is fixedly connected to the front of the protection box (1), a first motor (825) is fixedly connected to the bottom of the support base (824), a fixed rod (826) is fixedly connected to the output end of the first motor (825), and a rotating rod (827) is rotatably connected to the outside of the fixed rod (826).

5. The variable frequency motor with explosion-proof structure according to claim 4, characterized in that: A groove is provided at a position corresponding to the sliding block (822) and the rotating rod (827), and the rotating rod (827) is rotatably connected inside the groove.

6. The variable frequency motor with explosion-proof structure according to claim 1, characterized in that: The auxiliary protection mechanism (9) comprises a connection box (91), the connection box (91) is slidably connected to the outside of the protection box (1), a sliding rod (92) is fixedly connected to the inside of the connection box (91), a spring (93) is fixedly connected to the inside of the connection box (91), a movable block (94) is fixedly connected to one end of the spring (93) away from the connection box (91), a connection plate (95) is rotatably connected to the inside of the movable block (94), a fixed block (96) is rotatably connected to the outside of the connection plate (95), and a damping rod (97) is fixedly connected to the inside of the connection box (91).

7. The variable frequency motor with explosion-proof structure according to claim 6, characterized in that: The damping rod (97) is fixedly connected to the protection box (1), the fixed block (96) is fixedly connected to the cover plate (2), and the movable block (94) is slidably connected to the sliding rod (92).

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