CN220629027U - Protective device for aluminum shell three-phase asynchronous motor - Google Patents
Protective device for aluminum shell three-phase asynchronous motor Download PDFInfo
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- CN220629027U CN220629027U CN202322330356.9U CN202322330356U CN220629027U CN 220629027 U CN220629027 U CN 220629027U CN 202322330356 U CN202322330356 U CN 202322330356U CN 220629027 U CN220629027 U CN 220629027U
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- Prior art keywords
- cable
- phase asynchronous
- asynchronous motor
- sleeve
- box body
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 9
- 230000001681 protective effect Effects 0.000 title claims description 16
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 230000001012 protector Effects 0.000 claims abstract 2
- 239000000428 dust Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of three-phase asynchronous motors, and discloses a protection device for an aluminum shell three-phase asynchronous motor, which solves the problems of poor tensile property and poor sealing property of a cable of the existing three-phase asynchronous motor, and comprises a three-phase asynchronous motor body, wherein a protection junction box is arranged at the top end of the three-phase asynchronous motor body, the protection junction box consists of a box body, a cover body, a cable tensile traction component and a cable sealing threading component, the cover body is connected to the top end of the box body through a plurality of bolts, the cable tensile traction component is fixedly connected to one end of the side edge of the box body, the cable sealing threading component is inserted in the middle position of one side of the box body, which is close to the cable tensile traction component, and the cable is inserted in the cable sealing threading component and connected with the cable tensile traction component; through this protector for aluminum hull three-phase asynchronous motor can improve the tensile performance of dragging of cable, improves the whole leakproofness of terminal box simultaneously, and then improves three-phase asynchronous motor's life.
Description
Technical Field
The utility model belongs to the technical field of three-phase asynchronous motors, and particularly relates to a protection device for an aluminum shell three-phase asynchronous motor.
Background
The three-phase asynchronous motor is a motor which is simultaneously connected with a 380V three-phase alternating current power supply to supply power, and the three-phase asynchronous motor is widely applied to a plurality of occasions as a power source.
The motor junction box is a part of a three-phase asynchronous motor, the cable is usually electrically connected with the motor through the junction box, the currently used three-phase asynchronous motor junction box lacks a protective structure, when the cable of the motor is pulled under the action of external force, the tensile force is easily transmitted to the cable junction in the junction box through the cable, the connection strength of the cable and the electric connection part of the motor is usually weaker, and when the tensile force is transmitted to the electric connection part, the electric connection part is easily influenced by the tensile force to break and loose, so that the motor cannot work normally; meanwhile, the existing junction box is poor in sealing effect, and when the three-phase asynchronous motor is used in a humid environment, moisture easily enters the inside of the junction box through the junction of the cable and the junction box, so that the circuit safety is affected.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the protection device for the aluminum shell three-phase asynchronous motor, which effectively solves the problems of poor tensile drag performance and poor sealing performance of the traditional three-phase asynchronous motor cable.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an aluminum hull three-phase protection device for asynchronous motor, includes the three-phase asynchronous motor body, the fixed protective junction box that is provided with in top of three-phase asynchronous motor body, protective junction box comprises box body, lid, cable tensile traction assembly and cable seal threading subassembly, box body fixed connection is in the top of three-phase asynchronous motor body, the lid passes through a plurality of bolt fixed connection in the top of box body, cable tensile traction assembly fixed connection is in the one end of box body side, cable seal threading subassembly is fixed to be alternated in the intermediate position that the box body is close to cable tensile traction assembly one side, the cable alternates in cable seal threading subassembly and is connected with cable tensile traction assembly.
Preferably, the top of box body is fixed and is provided with the protruding circle of lid assorted, and the top surface of box body is fixed and is provided with sealing gasket, and the recess with protruding circle assorted is seted up to the bottom of lid, and the inside of recess is provided with the sealing washer, and the vertical cross-section of sealing washer is O type structure.
Preferably, the cable anti-pulling traction component consists of a cable jacket, a first connecting ring, a second connecting ring and a tensile chain, wherein the cable jacket is fixedly sleeved at one end of the outer surface of the cable close to the box body, the first connecting ring is fixedly connected to one side of the cable jacket, the second connecting ring is fixedly connected to one side of the box body, the tensile chain is connected between the first connecting ring and the second connecting ring, and the reserved length of the cable between the cable jacket and the cable sealing threading component is larger than the length of the tensile chain.
Preferably, the cable seal threading assembly comprises a threading sleeve, a first threaded connection end, a second threaded connection end and a rubber sealing sleeve, wherein the threading sleeve is fixedly inserted into the middle position of one side of the box body, both ends of the interior of the threading sleeve are respectively provided with internal threads matched with the first threaded connection end and the second threaded connection end, the rubber sealing sleeve is positioned in the middle position of the interior of the threading sleeve, and the first threaded connection end and the second threaded connection end are respectively connected to both ends of the threading sleeve.
Preferably, through grooves matched with the cables are formed in the first threaded connection end and the second threaded connection end, sealing gasket sleeves matched with the cables are fixedly arranged on the inner side walls of the through grooves, and limiting press sleeves matched with the cables are fixedly arranged at one ends of the first threaded connection end and the second threaded connection end, which are close to the threading sleeve.
Preferably, the inner surface and the outer surface of the rubber sealing sleeve are both corrugated structures, and a plurality of annular inner holes are formed in the rubber sealing sleeve.
Compared with the prior art, the utility model has the beneficial effects that:
(1) In operation, the sealing performance of the connection between the cover body and the box body can be improved by the grooves and the sealing rings which are provided with the convex rings, the sealing gaskets and the sealing rings, so that dust and water are prevented from entering the inside of the junction box to influence the use safety;
(2) The cable tension-resistant traction assembly formed by the cable jacket, the first connecting ring, the second connecting ring and the tension chain is arranged, so that the tension resistance performance of the cable can be improved, when the cable is subjected to external tension, the cable and the junction box can be prevented from being disconnected, the connection stability is improved, and the working stability of the three-phase asynchronous motor is further improved;
(3) The cable sealing threading assembly is composed of the threading sleeve, the first threaded connecting end, the second threaded connecting end and the rubber sealing sleeve, the tightness of connection between the cable and the junction box can be improved, dust and water are prevented from entering the junction box through gaps between the cable and the junction box, and the use safety and the service life are further improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
In the drawings:
FIG. 1 is a schematic diagram of a three-phase asynchronous motor body structure according to the present utility model;
FIG. 2 is a schematic diagram of a protective junction box according to the present utility model;
FIG. 3 is a second schematic diagram of a protective junction box according to the present utility model;
FIG. 4 is a schematic view of a cover structure of the present utility model;
FIG. 5 is a schematic view of a cable seal threading assembly according to one embodiment of the present utility model;
FIG. 6 is a second schematic view of the cable seal threading assembly of the present utility model;
in the figure: 1. a three-phase asynchronous motor body; 2. a protective junction box; 3. a case body; 4. a cover body; 5. the cable is pulled to draw the assembly; 6. a cable seal threading assembly; 7. a bolt; 8. a cable; 9. a convex ring; 10. a sealing gasket; 11. a groove; 12. a seal ring; 13. a cable jacket; 14. a first connecting ring; 15. a second connecting ring; 16. a zipper-resistant; 17. threading sleeve; 18. the first threaded connection end is connected with the first threaded connection end; 19. the second end is connected with the second end through threads; 20. a rubber sealing sleeve; 21. an internal thread; 22. a through groove; 23. a gasket sleeve; 24. limiting press sleeve; 25. an annular inner bore.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a protection device for an aluminum shell three-phase asynchronous motor, which is shown in fig. 1 to 4, and comprises a three-phase asynchronous motor body 1, wherein a protection junction box 2 is fixedly arranged at the top end of the three-phase asynchronous motor body 1, the protection junction box 2 consists of a box body 3, a cover body 4, a cable tensile traction component 5 and a cable sealing threading component 6, the box body 3 is fixedly connected to the top end of the three-phase asynchronous motor body 1, the cover body 4 is fixedly connected to the top end of the box body 3 through a plurality of bolts 7, the cable tensile traction component 5 is fixedly connected to one end of the side edge of the box body 3, the cable sealing threading component 6 is fixedly inserted in the middle position of one side, close to the cable tensile traction component 5, of the box body 3, and a cable 8 is inserted in the cable sealing threading component 6 and is connected with the cable tensile traction component 5;
as shown in fig. 2 to 4, a convex ring 9 matched with the cover body 4 is fixedly arranged at the top end of the box body 3, a sealing gasket 10 is fixedly arranged at the top surface of the box body 3, a groove 11 matched with the convex ring 9 is formed at the bottom end of the cover body 4, a sealing ring 12 is arranged in the groove 11, and the vertical section of the sealing ring 12 is of an O-shaped structure;
when the cover body 4 and the box body 3 are installed, the convex ring 9 is clamped into the groove 11 and presses the sealing ring 12 tightly, the sealing ring 12 deforms to realize sealing, and double sealing is realized through matching with the sealing gasket 10, so that the tightness of connection between the cover body 4 and the box body 3 is improved;
as shown in fig. 2 and 3, the cable anti-pulling traction assembly 5 is composed of a cable clamping sleeve 13, a first connecting ring 14, a second connecting ring 15 and a tensile chain 16, wherein the cable clamping sleeve 13 is fixedly sleeved at one end, close to the box body 3, of the outer surface of the cable 8, the first connecting ring 14 is fixedly connected to one side of the cable clamping sleeve 13, the second connecting ring 15 is fixedly connected to one side of the box body 3, the tensile chain 16 is connected between the first connecting ring 14 and the second connecting ring 15, and the reserved length of the cable 8 between the cable clamping sleeve 13 and the cable sealing threading assembly 6 is longer than the length of the tensile chain 16;
the cable clamp sleeve 13 is fixedly sleeved on the outer surface of the cable 8, the tensile chain 16 is connected between the first connecting ring 14 and the second connecting ring 15, when the cable 8 is subjected to external tension, the tension limiting of the cable 8 is realized through the anti-zipper 16, the cable and the protective junction box 2 are prevented from being broken, and the stability of electric connection is improved;
as shown in fig. 2, 3, 5 and 6, the cable sealing threading assembly 6 is composed of a threading sleeve 17, a first threaded connecting end 18, a second threaded connecting end 19 and a rubber sealing sleeve 20, the threading sleeve 17 is fixedly inserted into the middle position of one side of the box body 3, both ends of the interior of the threading sleeve 17 are respectively provided with internal threads 21 matched with the first threaded connecting end 18 and the second threaded connecting end 19, the rubber sealing sleeve 20 is positioned in the middle position of the interior of the threading sleeve 17, the first threaded connecting end 18 and the second threaded connecting end 19 are respectively connected with both ends of the threading sleeve 17, through grooves 22 matched with the cable 8 are respectively formed in the first threaded connecting end 18 and the second threaded connecting end 19, sealing gaskets 23 matched with the cable 8 are fixedly arranged on the inner side walls of the through grooves 22, a limit pressing sleeve 24 matched with the cable 8 is fixedly arranged at one ends of the first threaded connecting end 18 and the second threaded connecting end 19 close to the threading sleeve 17, both inner surfaces and outer surfaces of the rubber sealing sleeve 20 are corrugated structures, and a plurality of annular inner holes 25 are formed in the interior of the rubber sealing sleeve 20;
when the cable 8 is installed, the first threaded connection end 18 and the second threaded connection end 19 are detached firstly, then the cable 8 sequentially passes through the first threaded connection end 18, the threading sleeve 17, the rubber sealing sleeve 20 and the second threaded connection end 19, the first threaded connection end 18 and the second threaded connection end 19 are installed at the moment, the limiting press sleeve 24 at one end of the first threaded connection end 18 and one end of the second threaded connection end 19 generates extrusion force on the rubber sealing sleeve 20, the rubber sealing sleeve 20 deforms, the outer surface of the rubber sealing sleeve 20 is tightly attached to the inner side wall of the threading sleeve 17, sealing is achieved, the inner surface of the rubber sealing sleeve 20 is tightly attached to the outer surface of the cable 8, sealing is achieved, the inner surface and the outer surface of the rubber sealing sleeve 20 are of corrugated structures, a plurality of annular inner holes 25 are formed in the rubber sealing sleeve 20, the deformation effect of the rubber sealing sleeve 20 can be improved, and the whole sealing performance is improved.
In operation, the sealing performance of the connection between the cover body and the box body can be improved by the grooves and the sealing rings which are provided with the convex rings, the sealing gaskets and the sealing rings, so that dust and water are prevented from entering the inside of the junction box to influence the use safety; the cable tension-resistant traction assembly formed by the cable jacket, the first connecting ring, the second connecting ring and the tension chain is arranged, so that the tension resistance performance of the cable can be improved, when the cable is subjected to external tension, the cable and the junction box can be prevented from being disconnected, the connection stability is improved, and the working stability of the three-phase asynchronous motor is further improved; through setting up the sealed threading subassembly of cable that comprises threading sleeve, threaded connection end first, threaded connection end second and rubber seal cover, can improve the leakproofness that cable and terminal box are connected, avoid dust and water to enter into inside the terminal box through the gap between cable and the terminal box, further improve the security and the life of use.
Claims (6)
1. The utility model provides an aluminum hull protector for three-phase asynchronous motor, includes three-phase asynchronous motor body (1), its characterized in that: the cable tension pulling and pulling device is characterized in that a protective junction box (2) is fixedly arranged at the top end of the three-phase asynchronous motor body (1), the protective junction box (2) is composed of a box body (3), a cover body (4), a cable tension pulling and pulling component (5) and a cable sealing threading component (6), the box body (3) is fixedly connected to the top end of the three-phase asynchronous motor body (1), the cover body (4) is fixedly connected to the top end of the box body (3) through a plurality of bolts (7), the cable tension pulling and pulling component (5) is fixedly connected to one end of the side edge of the box body (3), the cable sealing threading component (6) is fixedly inserted into the middle position of one side, close to the cable tension pulling and pulling component (5), of the box body (3), and the cable (8) is inserted into the cable sealing threading component (6) and is connected with the cable tension pulling and pulling component (5).
2. The protective device for an aluminum-shell three-phase asynchronous motor according to claim 1, wherein: the top of box body (3) is fixed be provided with lid (4) assorted protruding circle (9), the top surface of box body (3) is fixed be provided with sealing gasket (10), bottom of lid (4) seted up with protruding circle (9) assorted recess (11), the inside of recess (11) is provided with sealing washer (12), the vertical cross-section of sealing washer (12) is O type structure.
3. The protective device for an aluminum-shell three-phase asynchronous motor according to claim 1, wherein: the cable tension-resistant traction assembly (5) is composed of a cable clamping sleeve (13), a first connecting ring (14), a second connecting ring (15) and a tension-resistant chain (16), wherein the cable clamping sleeve (13) is fixedly sleeved at one end, close to the box body (3), of the outer surface of the cable (8), the first connecting ring (14) is fixedly connected to one side of the cable clamping sleeve (13), the second connecting ring (15) is fixedly connected to one side of the box body (3), the tension-resistant chain (16) is connected between the first connecting ring (14) and the second connecting ring (15), and the reserved length of the cable (8) between the cable clamping sleeve (13) and the cable sealing threading assembly (6) is larger than the length of the tension-resistant chain (16).
4. The protective device for an aluminum-shell three-phase asynchronous motor according to claim 1, wherein: the cable sealing threading assembly (6) comprises a threading sleeve (17), a first threaded connection end (18), a second threaded connection end (19) and a rubber sealing sleeve (20), wherein the threading sleeve (17) is fixedly inserted into the middle position on one side of the box body (3), internal threads (21) matched with the first threaded connection end (18) and the second threaded connection end (19) are arranged at two ends of the interior of the threading sleeve (17), the rubber sealing sleeve (20) is located in the middle position of the interior of the threading sleeve (17), and the first threaded connection end (18) and the second threaded connection end (19) are respectively connected to two ends of the threading sleeve (17).
5. The protective device for an aluminum-shell three-phase asynchronous motor according to claim 4, wherein: the inside of threaded connection end first (18) and threaded connection end second (19) all has seted up logical groove (22) with cable (8) assorted, and the inside wall of logical groove (22) is fixed to be provided with cable (8) assorted sealed cover (23) that fills up, threaded connection end first (18) and threaded connection end second (19) are close to one end of threading sleeve (17) all fixed be provided with cable (8) assorted spacing pressure cover (24).
6. The protective device for an aluminum-shell three-phase asynchronous motor according to claim 4, wherein: the inner surface and the outer surface of the rubber sealing sleeve (20) are both of corrugated structures, and a plurality of annular inner holes (25) are formed in the rubber sealing sleeve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322330356.9U CN220629027U (en) | 2023-08-29 | 2023-08-29 | Protective device for aluminum shell three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322330356.9U CN220629027U (en) | 2023-08-29 | 2023-08-29 | Protective device for aluminum shell three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220629027U true CN220629027U (en) | 2024-03-19 |
Family
ID=90212545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322330356.9U Active CN220629027U (en) | 2023-08-29 | 2023-08-29 | Protective device for aluminum shell three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220629027U (en) |
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2023
- 2023-08-29 CN CN202322330356.9U patent/CN220629027U/en active Active
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