Motor with water jacket cooling motor rust removal structure

By using a sealing device and an air supply device in the water-jacket-cooled motor to fill nitrogen and maintain a slightly positive pressure in the inner water chamber, the rust problem is solved, the rust prevention and cooling effect stability of the motor are achieved, and the size changes of different flange plates are adapted.

CN223391179UActive Publication Date: 2025-09-26VEM CHINA CO LTD
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Patent Information

Application Number
CN202422650657.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-26
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

During the manufacturing stage, water-jacket-cooled motors rust due to moisture in the air entering the inner water chamber, affecting the cooling effect and contaminating the user's on-site water source. Existing rust prevention measures easily cause the paint to fall off during the annealing of the machine base, posing a continuous risk.

Method used

A sealing device and an air supply device are used to fill inert gas nitrogen through the water inlet and outlet pipes to maintain a slightly positive pressure state in the inner water chamber to prevent moisture from entering, and a sealing mechanism and polyethylene foaming agent are used to fill the gaps to enhance the sealing.

Benefits of technology

Effectively prevent rust, ensure motor cooling effect, avoid contaminating user water sources, improve sealing and anti-rust effects, and adapt to changes in different flange plate sizes.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223391179U_ABST
    Figure CN223391179U_ABST
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Abstract

The utility model discloses a motor with a water jacket cooling motor derusting structure in the technical field of water jacket cooling motors, which comprises a motor body, an inner water chamber is arranged in the motor body, a water inlet pipe and a water outlet pipe which are communicated with the inner water chamber are arranged on the motor body, and the free ends of the water inlet pipe and the water outlet pipe are both communicated with sealing devices. The water outlet pipe is further communicated with a gas supply device, and the gas supply device fills inert gas nitrogen into the inner water chamber through the water outlet pipe. The sealing device comprises flange plates and fixing discs, the flange plates comprise the first flange plate communicated with the water inlet pipe or the water outlet pipe, the first flange plate is connected with the second flange plate in a sealed mode through a sealing gasket, and the fixing discs are two rings of a semicircular ring structure and cover the outer surfaces of the flange plates. An adjusting mechanism for fixedly connecting the fixed disc with the flange plate and a sealing mechanism for enhancing the air tightness of the joint of the flange plate are arranged in the fixed disc.
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Description

Technical Field

[0001] The utility model relates to the technical field of water jacket cooling motors, in particular to a motor with a water jacket cooling motor rust removal structure. Background Art

[0002] During operation, water-jacket-cooled motors require circulating water to flow through their inner water chamber to remove the heat generated by the motor. However, during the motor manufacturing phase, this inner water chamber is not circulated. Moisture from the air enters the chamber, causing rust. This rust not only affects the motor's cooling efficiency but also contaminates the user's on-site circulating water source. Although some motors are coated with high-temperature-resistant waterproof paint in the inner water chamber during base welding to prevent rust, the paint can still partially fall off during the later annealing of the base (observed through an endoscope), posing a risk. Therefore, ensuring that the inner water chamber of the motor is free of rust before circulating water is introduced, ensuring the motor's cooling efficiency and avoiding contamination of the user's on-site water source, is an urgent issue. Utility Model Content

[0003] The purpose of the utility model is to provide a motor with a water jacket cooling motor rust removal structure to solve the above-mentioned technical problems.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A motor with a water-jacket-cooled motor rust removal structure comprises a motor body, an inner water chamber is provided inside the motor body, a water inlet pipe and a water outlet pipe are provided on the motor body and communicate with the inner water chamber, the free ends of the water inlet pipe and the water outlet pipe are both communicated with a sealing device, the water outlet pipe is also communicated with an air supply device, and the air supply device fills the inner water chamber with inert gas nitrogen through the water outlet pipe;

[0006] The sealing device includes a flange plate and a fixed plate. The flange plate includes a first flange plate connected to a water inlet pipe or a water outlet pipe. The first flange plate is sealed with a second flange plate via a sealing gasket. The fixed plate is a ring with two semicircular ring structures and is covered on the outer surface of the flange plate. The fixed plate is provided with an adjustment mechanism for fixing the fixed plate and the flange plate, as well as a sealing mechanism for enhancing the air tightness of the flange plate connection.

[0007] As a further solution of the present invention: the nitrogen in the inner water chamber is maintained in a slightly positive pressure state.

[0008] As a further solution of the present invention: the inner ring of the fixed disk is provided with a movable cavity for accommodating the fixed disk, and the movable cavity is vertically symmetrically provided with an adjustment groove, and the adjustment mechanism includes a first screw connected to the adjustment groove through a bearing, and an adjustment block is threadedly connected to the first screw, and a pressure plate is fixedly connected between the two adjustment blocks, the pressure plate is slidably connected to the movable cavity, and the adjustment block is slidably connected to the adjustment groove.

[0009] As a further solution of the present invention: the movable cavity does not extend out of the side of the fixed disk, the extending direction of the adjustment groove and the first screw is parallel to the movable cavity, and the adjustment block does not enter the movable cavity.

[0010] As a further solution of the present invention: the free end of the first screw is fixedly connected to the rotating shaft, the free end of the rotating shaft extends out of the fixed disk and is fixedly connected to the first rotating disk.

[0011] As a further solution of the present invention: the inner ring of the fixed disk is also provided with an annular lifting cavity, the lifting cavity is provided with an output groove close to the fixed disk, and a number of puncture nails are provided on both sides of the output groove. The sealing mechanism includes a driving plate slidably connected to the lifting cavity, and a covering layer filling the lifting cavity is provided under the driving plate, and a polyethylene foaming agent is provided in the covering layer.

[0012] As a further solution of the present invention: the gap of the output groove is smaller than the lifting chamber, the output groove is located outside the sealing gasket, the side of the drive plate away from the coating layer is rotatably connected to a second screw, the second screw is threadedly connected to the fixed disk, the free end of the second screw extends out of the fixed disk and is fixedly connected to a second turntable.

[0013] As a further solution of the present invention: the two semicircular ring structures of the fixing plate are fixedly connected by two groups of connecting bolts and fixing bolts.

[0014] As a further solution of the present invention: the sealing device further includes a high-pressure ball valve connected to the second flange plate, and the gas supply device includes a nitrogen source connected to the free end of the high-pressure ball valve through a conversion joint.

[0015] As a further solution of the present invention: the inner water chamber is connected to an exhaust plug and a drainage plug.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In the utility model, before operation, the water inlet pipe and the water outlet pipe are not connected to the water source. In order to prevent the entry of external moist air, the water inlet pipe and the water outlet pipe can be sealed by a sealing device; the air supply device fills the inner water chamber with inert gas nitrogen through the sealing device and the water outlet pipe to replace the original air inside, and ensures that the inner water chamber is in a slightly positive pressure state, thereby achieving the purpose of rust prevention.

[0018] The medium and high pressure ball valve of the utility model can achieve the purpose of sealing; the nitrogen source can fill the sealing device and the water outlet pipe with inert nitrogen gas through the conversion joint.

[0019] In the utility model, the first turntable can drive the rotating shaft to rotate along the fixed plate, the rotation of the rotating shaft can drive the first screw to rotate, the rotation of the first screw can drive the adjusting block to move along the adjusting groove and the extension direction of the first screw, and the adjusting block drives the clamping plate to slide along the movable cavity toward the second flange plate until the second flange plate is clamped, thereby achieving the purpose of fixing the first flange plate and the second flange plate of different sizes.

[0020] In the utility model, the driving plate drives the covering layer to move out of the output groove. The gap of the output groove is smaller than the lifting cavity, so the covering layer is subjected to great pressure. After the covering layer enters the output groove, it is punctured by the puncture nail. The polyethylene foaming agent inside exchanges with the air in the external environment, and solidifies and expands through the output groove, filling the gap between the first flange plate and the second flange plate, thereby improving the sealing performance of the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 It is a side view of the utility model;

[0023] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic structural diagram of another state of the utility model;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 This is a schematic structural diagram of the fixed disk in the present utility model;

[0027] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0028] Figure 8 It is a partial three-dimensional structural diagram of the adjustment mechanism in the utility model;

[0029] Figure 9 for Figure 6 Enlarged view of point D in the middle.

[0030] In the figure: 1. Motor body; 11. Exhaust plug; 12. Drain plug; 13. Water inlet pipe; 14. Water outlet pipe; 2. Inner water chamber; 3. Flange plate; 31. First flange plate; 32. Second flange plate; 33. Sealing gasket; 4. High-pressure ball valve; 5. Conversion joint; 6. Nitrogen source; 7. Fixed plate; 71. Connecting bolt; 72. Fixed bolt; 73. Moving chamber; 74. Adjusting slot; 75. Lifting chamber; 76. Output slot; 77. Piercing nail; 8. Adjusting mechanism; 81. First screw; 82. Adjusting block; 83. Pressing plate; 84. Rotating shaft; 85. First turntable; 9. Sealing mechanism; 91. Drive plate; 92. Coating layer; 93. Polyethylene foaming agent; 94. Second screw; 95. Second turntable. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0032] A motor with a water jacket cooling motor rust removal structure, reference Figures 1-9 , including a motor body 1, an inner water chamber 2 is provided inside the motor body 1, and a water inlet pipe 13 and a water outlet pipe 14 connected to the inner water chamber 2 are provided on the motor body 1, and the free ends of the water inlet pipe 13 and the water outlet pipe 14 are connected with a sealing device, and the water outlet pipe 14 is also connected with an air supply device, and the air supply device fills the inner water chamber 2 with inert gas nitrogen through the water outlet pipe 14, and the nitrogen in the inner water chamber 2 is maintained in a slightly positive pressure state; the effect achieved by the above components is: before working, the water inlet pipe 13 and the water outlet pipe 14 are not connected to the water source. In order to prevent external moist air from entering, the water inlet pipe 13 and the water outlet pipe 14 can be sealed by a sealing device; the air supply device fills the inner water chamber 2 with inert gas nitrogen through the sealing device and the water outlet pipe 14 to replace the original air inside, and ensure that the inner water chamber 2 is in a slightly positive pressure state to achieve the purpose of rust prevention.

[0033] like Figures 1-9 As shown, in this embodiment: the inner water chamber 2 is connected to an exhaust plug 11 and a drain plug 12; the effects achieved by the above components are: the exhaust plug 11 can be used to discharge the gas in the inner water chamber 2; the drain plug 12 can be used to discharge the moisture in the inner water chamber 2.

[0034] like Figures 1-9As shown, in this embodiment: the sealing device includes a flange plate 3 and a fixed plate 7, the flange plate 3 includes a first flange plate 31 connected to the water inlet pipe 13 or the water outlet pipe 14, and the first flange plate 31 is sealed with the second flange plate 32 via a sealing gasket 33; the effect achieved by the above components is: one end of the first flange plate 31 is connected to the water inlet pipe 13 or the water outlet pipe 14, and the other end can be sealed with the second flange plate 32 via the sealing gasket 33, so as to prevent external moist air from entering the inner water chamber 2 through the gap at the connection between the first flange plate 31 and the second flange plate 32, thereby achieving the purpose of rust prevention.

[0035] like Figures 1-9 As shown, in this embodiment: the sealing device also includes a high-pressure ball valve 4 connected to the second flange plate 32, and the gas supply device includes a nitrogen source 6 connected to the free end of the high-pressure ball valve 4 through a conversion joint 5. The effects achieved by the above components are: the high-pressure ball valve 4 can serve the purpose of sealing; the nitrogen source 6 can fill the sealing device and the water outlet pipe 14 with inert gas nitrogen through the conversion joint 5.

[0036] like Figures 1-9 As shown, in this embodiment: the fixed disk 7 is a ring with two semicircular ring structures and is covered on the outer surface of the flange plate 3. The two semicircular ring structures of the fixed disk 7 are fixedly connected by two sets of connecting bolts 71 and fixing bolts 72. The effect achieved by the above components is: the rings of the two semicircular ring structures are engaged with each other to clamp the outer surface of the flange plate 3, and are tightly connected by the two sets of connecting bolts 71 and fixing bolts 72, so that the first flange plate 31 and the second flange plate 32 are connected.

[0037] like Figures 1-9As shown, in this embodiment: the inner ring of the fixed disk 7 is provided with a movable cavity 73 for accommodating the fixed disk 7, the movable cavity 73 does not extend out of the side of the fixed disk 7, and an adjustment groove 74 is vertically symmetrically provided in the movable cavity 73. An adjustment mechanism 8 for fixedly connecting the fixed disk 7 and the flange plate 3 is provided in the fixed disk 7, and the adjustment mechanism 8 includes a first screw 81 rotatably connected to the adjustment groove 74 through a bearing, and the extension direction of the adjustment groove 74 and the first screw 81 is parallel to the movable cavity 73. An adjustment block 82 is threadedly connected to the first screw 81, and the adjustment block 82 does not enter the movable cavity 73. A pressure plate 83 is fixedly connected between the two adjustment blocks 82, and the pressure plate 83 is slidably connected to the movable cavity 73, and the adjustment block 82 is slidably connected to the adjustment groove 74; the effect achieved by the above components is: if the size of the first flange plate 31 and the second flange plate 32 changes, under normal circumstances, the fixed disk 7 needs to be replaced to achieve fixed The purpose of the first flange plate 31 and the second flange plate 32 is to fix the first flange plate 31 and the second flange plate 32 of various sizes, but in this scheme, the adjusting mechanism 8 can fix the first flange plate 31 and the second flange plate 32 of various sizes; after the first flange plate 31 and the second flange plate 32 are installed in the movable cavity 73, they may not match the movable cavity 73. At this time, the rotation of the first screw 81 can drive the adjusting block 82 to move along the adjusting groove 74 and the extension direction of the first screw 81, and the adjusting block 82 drives the pressure plate 83 to slide along the movable cavity 73 toward the second flange plate 32 until the second flange plate 32 is clamped, thereby achieving the purpose of fixing the first flange plates 31 and the second flange plates 32 of different sizes; the sliding directions of the adjusting block 82 and the pressure plate 83 are parallel, so that the adjusting block 82 can smoothly drive the pressure plate 83 to slide along the movable cavity 73; the first screw 81 is rotatably connected in the adjusting groove 74 through the bearing, so that the first screw 81 will not move during the rotation process.

[0038] like Figures 1-9 As shown, in this embodiment: the free end of the first screw 81 is fixedly connected to the rotating shaft 84, the free end of the rotating shaft 84 extends out of the fixed disk 7, and is fixedly connected to the first rotating disk 85; the effect achieved by the above components is: the first rotating disk 85 can drive the rotating shaft 84 to rotate along the fixed disk 7, and the rotation of the rotating shaft 84 can drive the first screw 81 to rotate.

[0039] like Figures 1-9As shown, in this embodiment: the inner ring of the fixed disk 7 is also provided with an annular lifting chamber 75, and the fixed disk 7 is provided with a sealing mechanism 9 that enhances the air tightness of the connection at the flange plate 3, and the sealing mechanism 9 includes a driving plate 91 that is slidably connected to the lifting chamber 75, and a coating layer 92 that fills the lifting chamber 75 is provided below the driving plate 91, and the driving plate 91 is rotatably connected to the side of the coating layer 92 away from the coating layer 92. The second screw 94 is threadedly connected to the fixed disk 7, and the free end of the second screw 94 extends out of the fixed disk 7 and is fixedly connected to the second turntable 95; the effect achieved by the above components is: the second turntable 95 can drive the second screw 94 to move spirally along the fixed disk 7, and the second screw 94 can drive the driving plate 91 to move along the lifting chamber 75 toward the coating layer 92.

[0040] like Figures 1-9 As shown, in this embodiment: the lifting chamber 75 is provided with an output groove 76 in the direction close to the fixed disk 7, the gap of the output groove 76 is smaller than the lifting chamber 75, a polyethylene foam 93 is provided in the covering layer 92, and a plurality of puncture nails 77 are provided on both sides of the output groove 76, and the output groove 76 is located outside the sealing gasket 33; the effect achieved by the above components is: the driving plate 91 drives the covering layer 92 to move out of the output groove 76, the gap of the output groove 76 is smaller than the lifting chamber 75, so that the covering layer 92 is subjected to great pressure, and the covering layer 92 is punctured by the puncture nails 77 after entering the output groove 76, and the internal polyethylene foam 93 exchanges with the air in the external environment, and solidifies and expands through the output groove 76, filling the gap between the first flange plate 31 and the second flange plate 32, thereby improving the sealing performance of the sealing gasket 33; the gap of the output groove 76 is smaller than the lifting chamber 75, which can make the part of the covering layer 92 located in the output groove 76 withstand great pressure, which is conducive to being punctured by the puncture nails 77.

[0041] The operating principle of the present utility model is as follows: first, the coating layer 92 is placed in the lifting chamber 75, and then the fixed plate 7 is tightly connected through the two sets of connecting bolts 71 and the fixing bolts 72. Then, the first turntable 85 is rotated, and the first turntable 85 can drive the rotating shaft 84 to rotate along the fixed plate 7, and the rotating shaft 84 drives the first screw 81 to rotate, and the first screw 81 drives the adjusting block 82 to move, and the adjusting block 82 drives the pressing plate 83 to slide along the moving chamber 73 toward the second flange plate 32 until the second flange plate 32 is clamped. Then, the first turntable 85 is rotated. The second turntable 95 is moved, and the second turntable 95 drives the second screw 94 to move spirally along the fixed disk 7. The second screw 94 drives the driving plate 91 to move along the lifting chamber 75 toward the covering layer 92. The driving plate 91 drives the covering layer 92 to move out of the output slot 76 until it is punctured by the puncture nail 77. The polyethylene foaming agent 93 inside exchanges with the air in the external environment and solidifies and expands through the output slot 76 to fill the gap between the first flange plate 31 and the second flange plate 32, thereby improving the sealing performance of the sealing gasket 33.

[0042] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A motor with a water jacket cooling motor rust removal structure, comprising a motor body (1), characterized in that: An inner water chamber (2) is provided inside the motor body (1), and a water inlet pipe (13) and a water outlet pipe (14) are provided on the motor body (1) and are communicated with the inner water chamber (2). The free ends of the water inlet pipe (13) and the water outlet pipe (14) are both communicated with a sealing device, and the water outlet pipe (14) is also communicated with an air supply device, and the air supply device fills the inner water chamber (2) with inert gas nitrogen through the water outlet pipe (14); The sealing device comprises a flange plate (3) and a fixed disk (7), wherein the flange plate (3) comprises a first flange plate (31) connected to a water inlet pipe (13) or a water outlet pipe (14), wherein the first flange plate (31) is sealedly connected to a second flange plate (32) via a sealing gasket (33), and the fixed disk (7) is a ring having two semicircular ring structures and is coated on the outer surface of the flange plate (3). The fixed disk (7) is provided with an adjustment mechanism (8) for fixing the fixed disk (7) and the flange plate (3), and a sealing mechanism (9) for enhancing the airtightness of the connection between the flange plate (3).

2. The motor with a water jacket cooling motor rust removal structure according to claim 1, characterized in that: The nitrogen in the inner water chamber (2) is maintained in a slightly positive pressure state.

3. The motor with a water jacket cooling motor rust removal structure according to claim 2, characterized in that: The inner ring of the fixed disk (7) is provided with a movable cavity (73) for accommodating the fixed disk (7), and the movable cavity (73) is vertically symmetrically provided with an adjustment groove (74). The adjustment mechanism (8) includes a first screw (81) rotatably connected to the adjustment groove (74) through a bearing, and an adjustment block (82) is threadedly connected to the first screw (81). A pressure plate (83) is fixedly connected between the two adjustment blocks (82), and the pressure plate (83) is slidably connected to the movable cavity (73), and the adjustment block (82) is slidably connected to the adjustment groove (74).

4. The motor with a water jacket cooling motor rust removal structure according to claim 3, characterized in that: The movable cavity (73) does not extend beyond the side of the fixed disk (7), the extending directions of the adjustment groove (74) and the first screw (81) are parallel to the movable cavity (73), and the adjustment block (82) does not enter the movable cavity (73).

5. The motor with a water jacket cooling motor rust removal structure according to claim 4, characterized in that: The free end of the first screw rod (81) is fixedly connected to a rotating shaft (84), and the free end of the rotating shaft (84) extends out of the fixed disk (7) and is fixedly connected to a first rotating disk (85).

6. The motor with a water-jacket-cooled motor rust removal structure according to claim 5, characterized in that: The inner ring of the fixed disk (7) is further provided with an annular lifting chamber (75), the lifting chamber (75) is provided with an output slot (76) in a direction close to the fixed disk (7), and a plurality of puncturing pins (77) are provided on both sides of the output slot (76). The sealing mechanism (9) includes a driving plate (91) slidably connected to the lifting chamber (75), a covering layer (92) filled with the lifting chamber (75) is provided below the driving plate (91), and a polyethylene foaming agent (93) is provided in the covering layer (92).

7. The motor with a water jacket cooling motor rust removal structure according to claim 6, characterized in that: The gap of the output groove (76) is smaller than that of the lifting chamber (75), and the output groove (76) is located outside the sealing gasket (33). The side of the driving plate (91) away from the coating layer (92) is rotatably connected to the second screw (94), and the second screw (94) is threadedly connected to the fixed disk (7). The free end of the second screw (94) extends out of the fixed disk (7) and is fixedly connected to the second rotating disk (95).

8. The motor with a water jacket cooling motor rust removal structure according to claim 7, characterized in that: The two semicircular ring structures of the fixed disk (7) are fixedly connected via two groups of connecting bolts (71) and fixing bolts (72).

9. The motor with a water jacket cooling motor rust removal structure according to claim 8, characterized in that: The sealing device further comprises a high-pressure ball valve (4) connected to the second flange plate (32), and the gas supply device comprises a nitrogen source (6) connected to the free end of the high-pressure ball valve (4) via a conversion joint (5).

10. The motor with a water jacket cooling motor rust removal structure according to claim 9, characterized in that: The inner water chamber (2) is connected to an exhaust plug (11) and a drainage plug (12).