Dustproof motor

Abstract

The utility model discloses a dustproof motor, which comprises a casing and a motor shaft, and the motor shaft penetrates out of the casing. The motor shaft is sleeved with a sealing ring, and the sealing ring is used for shielding the connecting position of the motor shaft and the machine shell. The machine shell comprises a first shell body and a second shell body, the first shell body is provided with an outer edge, the second shell body is provided with a bendable portion, and the bendable portion is matched with an end plate of the second shell body to clamp the outer edge so as to limit free separation of the first shell body and the second shell body. The dustproof device is novel in structure, reliable in dust prevention, flexible to disassemble and assemble due to the split type design, capable of avoiding the situation that disassembly and assembly are affected due to thread slipping or rust locking compared with a bolt and nut fixing mode, rapid to operate and capable of saving working hours.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a dustproof motor. Background Art

[0002] The motor realizes the conversion between electrical energy and mechanical energy and between mechanical energy and electrical energy, becoming the core driving source for most mechanical equipment and is widely used in industry, agriculture, commerce, construction and other fields.

[0003] The existing motor has the following defects: the casing includes two half shells, which are locked by bolts and nuts, and need to be disassembled and assembled with the help of tools, which is time-consuming and inconvenient. The threads may be stripped or rusted and locked, which affects the subsequent disassembly and assembly.

[0004] The existing patent document (publication number: CN216111396U) discloses "a motor", whose technical solution is that the shell includes a first half shell and a second half shell, and the first outer ring of the first half shell and the second outer ring of the second half shell are locked by a threaded column and a fixing nut. After being used for a long time, it will rust and lock, making it difficult to disassemble, affecting subsequent maintenance, and also has the above-mentioned technical problems. Summary of the invention

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provide a dustproof motor with novel structure, reliable dustproof, split design and flexible disassembly and assembly. Compared with the fixing method of bolts and nuts, it avoids the disassembly and assembly affected by thread stripping or rust locking, and is quick to operate and saves work time.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A dustproof motor comprises: a housing and a motor shaft, wherein the motor shaft passes through the housing; the motor shaft is characterized in that: a sealing ring is sleeved on the motor shaft, and the sealing ring is used to shield the connection between the motor shaft and the housing; the housing comprises a first housing and a second housing, wherein the first housing is provided with an outer edge, and the second housing is provided with a bendable portion, and the bendable portion cooperates with the end plate of the second housing to clamp the outer edge to limit the first housing from being freely disengaged from the second housing. The motor has a novel structure, is dustproof and reliable, adopts a split design, and is flexible to disassemble and assemble. Compared with the fixing method of bolts and nuts, it avoids the influence of disassembly and assembly due to thread stripping or rust locking, and is quick to operate, saving work time.

[0008] Furthermore, a bearing chamber is provided on the first shell body, and a protective cover is provided on the outer sleeve of the bearing chamber. The inner wall of the protective cover is in close contact with the outer wall of the bearing chamber, resulting in large friction. The protective cover is not easy to freely separate from the bearing chamber, and the installation is reliable. The protective cover presses the sealing ring to prevent the sealing ring from freely separating from the motor shaft, thereby improving the installation stability of the sealing ring and ensuring the sealing effect.

[0009] Furthermore, a threading hole is provided on the casing, and a rubber wire sheath is provided on the threading hole. The power cord of the motor passes through the middle hole of the rubber wire sheath. The rubber wire sheath protects the power cord and prevents the power cord from being damaged by repeated friction with the hole wall of the threading hole.

[0010] Furthermore, both ends of the rubber grommet are provided with limiting parts, and the cross-sectional diameter of the limiting part is larger than the cross-sectional diameter of the threading hole, so that the rubber grommet can be detachably limited and connected to the casing. The rubber grommet is detachable and replaceable, which is flexible and convenient. The rubber grommet is squeezed so that the limiting part on one side can pass through the threading hole after deformation. After relaxation, the limiting part cannot pass through the threading hole freely, thereby realizing the rubber grommet being limited on the casing.

[0011] Furthermore, lugs are provided on the first shell and the second shell, and mounting through holes are provided on the lugs, which serve as backup connections. Bolts and nuts can be installed according to actual needs to improve the assembly reliability of the casing.

[0012] Furthermore, the casing is provided with ears, and the ears are provided with fixing through holes, which are convenient for connecting with the motor bracket through nails, thereby improving the convenience of connection.

[0013] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0014] 1. The sealing ring is used to cover the connection between the motor shaft and the casing, which can prevent external dust and water vapor from entering the casing through the gap between the motor shaft and the casing. It is dust-proof and reliable, simple and practical; the protective cover presses the sealing ring to prevent the sealing ring from freely detaching from the motor shaft, thereby improving the installation stability of the sealing ring and ensuring the sealing effect.

[0015] 2. The casing can be disassembled into two parts with a split design and low manufacturing requirements. Damaged parts can be replaced separately. The bendable part cooperates with the end plate of the second casing to clamp the outer edge of the first casing, so that the first casing cannot be freely separated from the second casing. The casing assembly is reliable. The first casing can be separated from the second casing by bending the bendable part in the reverse direction. Compared with the fixing method of bolts and nuts, it avoids the influence of disassembly and assembly due to thread stripping or rust locking, and the operation is quick, saving work time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a dust-proof motor of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the first shell and the protective cover in the utility model;

[0019] Figure 3It is a schematic diagram of the structure of the protective cover in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the second housing in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the middle ear part of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the rubber wire protection sleeve in the utility model.

[0023] In the figure: 1- housing; 2- motor shaft; 3- first housing; 4- second housing; 5- outer edge; 6- end plate; 7- ear; 8- bendable portion; 9- fixing through hole; 10- lug; 11- mounting through hole; 12- bearing chamber; 13- sealing ring; 14- protective cover; 15- center hole; 17- rubber wire sleeve; 18- limiting portion. DETAILED DESCRIPTION

[0024] A dustproof motor comprises: a casing 1, a motor shaft 2, a rotor and a stator. The stator is arranged in the casing 1, the stator rotates and connects to the rotor, the motor shaft 2 is arranged on the rotor, and the motor shaft 2 rotates synchronously with the rotor. The above structure belongs to the prior art and will not be repeated here.

[0025] like Figure 1 , Figure 4 , Figure 5 As shown, the casing 1 includes a first shell 3 and a second shell 4. The first shell 3 is provided with an outer edge 5. Ears 7 are evenly distributed on the end plate 6 of the second shell 4. The ears 7 are provided with through holes. A bendable portion 8 is provided in the through holes. The bendable portion 8 can be made of a semi-hard aluminum plate and can be bent back and forth. The bendable portion 8 cooperates with the end plate 6 to clamp the outer edge 5 to limit the free separation of the first shell 3 and the second shell 4.

[0026] The casing 1 can be disassembled into two parts with a split design and low manufacturing requirements. It can be replaced separately if damaged. The bendable portion 8 cooperates with the end plate 6 to clamp the outer edge 5 of the first shell 3, so that the first shell 3 cannot be freely separated from the second shell 4. The casing 1 is reliably assembled. At this time, the end plate 6 is close to the outer edge 5 and has good sealing. The bendable portion 8 is bent in the reverse direction to separate the first shell 3 from the second shell 4. Compared with the fixing method of bolts and nuts, it avoids the disassembly and assembly affected by thread stripping or rust locking, and the operation is quick, saving work time.

[0027] The ear portion 7 is provided with a fixing through hole 9, which is convenient for connecting with the motor bracket by nailing, thereby improving the convenience of connection.

[0028] Lugs 10 are provided on the outer edge 5 and the end plate 6 , and mounting through holes 11 are provided on the lugs 10 , which serve as backup connections. Bolts and nuts can be installed according to actual needs to improve the assembly reliability of the housing 1 .

[0029] like Figure 2 As shown, a bearing chamber 12 is provided on the first shell 3, and a bearing connected to the motor shaft 2 is provided in the bearing chamber 12. The motor shaft 2 passes through the bearing chamber 12, and a sealing ring 13 is sleeved on the motor shaft 2. The sealing ring 13 can be made of fluororubber. The sealing ring 13 is easy to assemble and disassemble, and can be used at any time, which is flexible and convenient. The sealing ring 13 is used to shield the connection between the motor shaft 2 and the bearing chamber 12, and can prevent external dust and water vapor from entering the casing 1 through the gap between the motor shaft 2 and the casing 1. It is dust-proof and reliable, simple and practical.

[0030] like Figure 2 , Figure 3 As shown, a protective cover 14 is provided on the outer sleeve of the bearing chamber 12, and a central hole 15 is provided on the protective cover 14 for the motor shaft 2 to pass through. The protective cover 14 is easy to assemble and disassemble, and can be used at any time, which is flexible and convenient. After installation, the inner wall of the protective cover 14 is in close contact with the outer wall of the bearing chamber 12, and the friction force is large. The protective cover 14 is not easy to freely separate from the bearing chamber 12, and the installation is reliable. At the same time, the protective cover 14 presses the sealing ring 13, which can prevent the sealing ring 13 from freely separating from the motor shaft 2, thereby improving the installation stability of the sealing ring 13, thereby ensuring the sealing effect.

[0031] like Figure 4 As shown, the second shell 4 is provided with a threading hole, and the threading hole is provided with a rubber wire sheath 17. The power cord of the motor passes through the middle hole of the rubber wire sheath 17. The rubber wire sheath 17 protects the power cord and prevents the power cord from being damaged by repeated friction with the hole wall of the threading hole.

[0032] like Figure 6 As shown, both ends of the rubber grommet 17 are provided with a limiting portion 18, the cross-sectional diameter of the limiting portion 18 is larger than the cross-sectional diameter of the threading hole, and the rubber grommet 17 is detachable and replaceable, which is flexible and convenient. The rubber grommet 17 is squeezed to deform so that the limiting portion 18 on one side can pass through the threading hole. After being relaxed, the limiting portion 18 cannot pass through the threading hole freely, thereby limiting the rubber grommet 17 on the second shell 4.

[0033] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A dust-proof motor, comprising: A housing and a motor shaft, wherein the motor shaft passes through the housing; Features: A sealing ring is sleeved on the motor shaft, and the sealing ring is used to cover the connection between the motor shaft and the housing; The housing includes a first shell and a second shell. The first shell is provided with an outer edge. The second shell is provided with a bendable portion. The bendable portion cooperates with the end plate of the second shell to clamp the outer edge to limit the free separation of the first shell and the second shell.

2. The dust-proof motor according to claim 1, characterized in that: A bearing chamber is provided on the first housing, and a protective cover is provided on the outer sleeve of the bearing chamber. The protective cover presses the sealing ring to limit the sealing ring from freely separating from the motor shaft.

3. The dust-proof motor according to claim 1, characterized in that: The casing is provided with a threading hole, and the threading hole is provided with a rubber wire protection sleeve.

4. The dustproof motor according to claim 3, characterized in that: Both ends of the rubber grommet are provided with limiting parts, and the cross-sectional diameter of the limiting parts is larger than the cross-sectional diameter of the threading hole, so that the rubber grommet can be detachably connected to the housing in a limiting manner.

5. The dust-proof motor according to claim 1, characterized in that: The first shell and the second shell are both provided with lugs, and the lugs are provided with mounting through holes.

6. The dustproof motor according to claim 1, characterized in that: The housing is provided with ears, and the ears are provided with fixing through holes.

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