Oil receiving device for preventing oil contamination of large vertical bearing bush type motor

Abstract

The invention relates to the technical field of motor oil receiving, in particular to an oil receiving device for preventing oil contamination of a large vertical bearing bush type motor. The motor support is used for supporting a motor rotor, and a flange plate used for fixing other assemblies is arranged on the plane of the lower portion of the motor support; the oil receiving basin can be sleeved from the upper part of the motor rotor and positioned in the middle of the motor rotor; and the oil flinger is arranged at a preset position at the sealing part of the motor rotor oil seal so as to ensure that the oil is effectively intercepted and guided into the oil receiving basin. The large bearing bush type high-voltage motor has the beneficial effects that oil leaked from the large bearing bush type high-voltage motor does not pollute the motor any more, is received into the special oil receiving basin and is discharged out of the motor during regular maintenance, so that the conditions of heating, tripping and ignition caused by overweight oil stains are greatly avoided, and meanwhile, the huge workload of cleaning the oil stains is also greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of motor oil connection, in particular to an oil connection device for preventing oil pollution of a large vertical bearing-type motor. Background Art

[0002] Most of the existing large vertical bearing-type motors do not have this oil collection device, and are only sealed with ordinary felt. However, the felt itself cannot seal the oil, and after rotation and friction, a gap will be created between the motor rotor and the oil will flow along this gap and be thrown onto the stator coil, stator core, and rotor core as the rotor rotates.

[0003] As the asphalt felt and ash are stained with oil, a thick sludge is formed, which blocks the gaps between the stationary and rotating parts and the ventilation holes, greatly affecting the heat dissipation of the motor, and causing fatal disasters such as overheating, tripping, and fire. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] The object of the present invention is to provide an oil receiving device for preventing oil pollution of a large vertical bearing-type motor.

[0006] Therefore, its purpose is to solve the problem that the linoleum dust and ash stained with oil eventually formed a thick sludge, which blocked the gap between the stationary and rotating parts and the ventilation holes, greatly affecting the heat dissipation of the motor.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: an oil receiving device for preventing oil pollution of a large vertical bearing-type electric motor, which includes a motor rotor; a motor bracket, the motor bracket is used to support the motor rotor, and the motor bracket is provided with a flange plate for fixing other components on its lower plane; an oil receiving basin, the oil receiving basin can be inserted from the upper part of the motor rotor and positioned in the middle of the motor rotor; an oil flinging pan, the oil flinging pan is installed at a predetermined position of the oil seal of the motor rotor to ensure that the oil is effectively intercepted and guided into the oil receiving basin.

[0008] As a preferred solution of the oil receiving device for preventing oil pollution of a large vertical bearing-type motor of the present invention, the oil-slinging plate is annular, and the inner and outer walls of the oil-slinging plate need to be polished.

[0009] As a preferred solution of the oil receiving device for preventing oil pollution of large vertical bearing-type motors of the present invention, the inner diameter of the oil-slinging plate is 0.03 to 0.04 mm smaller than the outer diameter 2 to 6 cm below the sealing point of the motor rotor oil seal.

[0010] As a preferred solution of the oil receiving device for preventing oil pollution of large vertical bearing-type motors of the present invention, the oil-slinging pan is installed 2 to 6 cm below the oil seal of the motor rotor after heating treatment to guide the oil into the oil receiving basin.

[0011] As a preferred solution of the oil receiving device for preventing oil pollution of the large vertical bearing-type motor of the present invention, when the motor rotor rotates, the oil-slinging plate 104 rotates accordingly and throws the oil pollution into the oil receiving basin.

[0012] As a preferred solution of the oil receiving device for preventing oil pollution of a large vertical bearing-type motor of the present invention, the flange is provided with at least six evenly distributed threaded holes for installing screw rods.

[0013] As a preferred solution of the oil collecting device for preventing oil pollution of large vertical bearing-type electric motors of the present invention, the side wall of the oil collecting basin is provided with at least six threaded holes, which match the screws on the flange, so that the oil collecting basin can be fixed on the flange by nuts and screws.

[0014] As a preferred solution of the oil receiving device for preventing oil pollution of a large vertical bearing-type motor of the present invention, the screw is made of high-carbon steel material, and the screw head is designed with a hexagonal wrench notch.

[0015] As a preferred solution of the oil receiving device for preventing oil pollution of a large vertical bearing-type electric motor of the present invention, the tail end of the screw is designed with a self-locking thread.

[0016] As a preferred solution of the oil receiving device for preventing oil pollution of a large vertical bearing-type motor of the present invention, the oil receiving basin and the oil throwing tray are both made of corrosion-resistant materials.

[0017] The beneficial effect of the oil receiving device for preventing oil pollution of large vertical bearing-type motors of the present invention is that the oil seeping from large bearing-type high-voltage motors no longer pollutes the motor itself, but is received in a special oil receiving basin and discharged outside the motor during regular maintenance, which greatly prevents heating, tripping and fire caused by excessive oil pollution, and also greatly reduces the huge workload of cleaning oil pollution. The stability of motor operation is improved, the motor operation time is greatly extended, the motor maintenance cycle is shortened, and the service life of the motor is also extended.

[0018] It is quite convenient to repair. You only need to remove and install six screws, and the maintenance workload remains almost unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 The invention discloses a cross-sectional structural diagram of an oil receiving device for preventing oil pollution of a large vertical bearing-type motor.

[0021] Figure 2 The present invention is a cross-sectional structural diagram of a large vertical bearing-type motor using a blanket to seal oil leakage in the prior art.

[0022] In the figure:

[0023] 100. Motor rotor; 101. Motor bracket; 102. Flange; 103. Oil collecting basin; 104. Oil throwing tray. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figure 1, which is the first embodiment of the present invention, and this embodiment provides an oil receiving device for preventing oil pollution of a large vertical bearing-type motor, including a motor rotor 100; a motor bracket 101, the motor bracket 101 is used to support the motor rotor 100, and the motor bracket 101 is provided with a flange 102 for fixing other components on its lower plane; an oil receiving basin 103, the oil receiving basin 103 is designed to be able to be inserted from the upper part of the motor rotor 100 and positioned in the middle of the motor rotor 100; an oil throwing plate 104, the oil throwing plate 104 is installed at a predetermined position of the oil seal of the motor rotor 100 to ensure that the oil is effectively intercepted and guided into the oil receiving basin 103.

[0029] In large vertical bearing-type motors, due to their structural characteristics, a small amount of lubricating oil often seeps out of the oil seal. If the lubricating oil is not effectively collected and treated, it may cause the electrical parts inside the motor to become damp and short-circuit, thus affecting the normal operation of the entire motor system.

[0030] in, Figure 2 In the process of dealing with oil leakage in the existing vertical bearing-type motor, a felt Q is usually wrapped around the bearing N to absorb the oil. However, the felt ash and ash are stained with oil and eventually form a thick sludge, which is blocked between the stationary and rotating parts and in the gaps of the ventilation holes, greatly affecting the heat dissipation of the motor.

[0031] In this embodiment, the motor rotor 100 is a rotating part of the motor, and bearings and oil seals are usually installed on it to ensure good lubrication and stability during high-speed rotation. The motor bracket 101 is mainly responsible for supporting the entire motor rotor 100, and fixing other related components through the flange 102 set on its lower plane. The oil receiving basin 103 can be inserted from the top of the motor rotor 100 and accurately positioned at a predetermined position in the middle of the motor rotor 100. Such a design enables the oil receiving basin 103 to effectively collect oil from the oil seal without affecting the normal operation of the motor. The oil throwing plate 104 is installed at a specific position near the oil seal of the motor rotor 100. Its function is to throw the oil from the oil seal to the direction of the oil receiving basin 103 through centrifugal force when the motor rotor 100 rotates at high speed, thereby achieving effective interception and guidance of the oil. The shape and size of the oil throwing plate 104 need to be adjusted according to the actual working conditions to ensure the best oil throwing effect.

[0032] When the motor starts and reaches the normal operating speed, the trace amount of lubricating oil that may exist at the oil seal will overflow under the action of centrifugal force. At this time, the oil-slinging plate 104 located near the oil seal begins to play a role, and it uses centrifugal force to throw the oil toward the oil receiving basin 103. The oil receiving basin 103 can smoothly catch the thrown oil, thereby preventing the oil from directly splashing onto other sensitive areas of the motor.

[0033] The oil in the oil receiving basin 103 can then be dipped out by a sponge, which not only keeps the internal environment of the motor clean, but also effectively reduces the potential safety hazards caused by oil leakage.

[0034] In summary, this embodiment provides an efficient and reliable method for preventing oil contamination of a large vertical bearing-type motor. By reasonably improving the motor structure, not only the reliability of the equipment is improved, but also the maintenance cost is reduced.

[0035] Example 2

[0036] Reference Figure 1 , which is the second embodiment of the present invention. Different from the previous embodiment, the oil-slinging plate 104 is annular, and the inner and outer walls of the oil-slinging plate 104 need to be polished. The inner diameter of the oil-slinging plate 104 is 0.03 to 0.04 mm smaller than the outer diameter of the motor rotor oil seal. After the oil-slinging plate 104 is heated, it is installed at a position 2 to 6 cm below the motor rotor oil seal to guide the oil into the oil receiving basin 103. When the motor rotor 100 rotates, the oil-slinging plate 104 rotates accordingly and throws the oil into the oil receiving basin 103.

[0037] In this embodiment, the oil-slinging plate 104 is an annular structure with a certain thickness and strength so that it can withstand the centrifugal force generated by high-speed rotation without deformation. In order to ensure that its surface is smooth and reduce the adhesion of oil stains, the inner and outer walls of the oil-slinging plate 104 are polished. The inner hole diameter of the oil-slinging plate 104 is designed to be slightly smaller than the outer diameter of the motor rotor oil seal, specifically 0.03 to 0.04 mm smaller. Such a size difference forms a tiny gap between the oil-slinging plate 104 and the rotor. This design is to ensure that during installation, the oil-slinging plate 104 can be inserted into the rotor by heating expansion, and fit tightly after cooling and shrinking, and will not fall off or loosen easily. The oil-slinging plate 104 needs to be installed at a position 2 to 6 cm below the motor rotor oil seal. It can ensure that during the operation of the motor, the oil seeping from the oil seal can be effectively intercepted by the oil-slinging plate 104, and guided to the oil receiving basin 103 by the action of centrifugal force. At the same time, such a position is also convenient for maintenance personnel to carry out regular inspection and cleaning work. In order to prevent overflow, the capacity of the oil receiving basin 103 needs to be large enough, and an alarm system can be provided to prompt the operator to clean it in time when necessary.

[0038] When the motor starts and the rotor begins to rotate, the oil-slinging plate 104 installed under the rotor also rotates at high speed, and the oil leaking from the oil seal will be captured by the oil-slinging plate 104. Due to the centrifugal force, the oil will move outward along the edge of the oil-slinging plate 104 and eventually be guided to the oil receiving basin 103. In this way, it is not only prevented that the oil directly drips onto the ground or other parts of the motor to cause pollution, but also facilitates the centralized management and recycling of the oil.

[0039] In addition, the heating installation method of the oil-slinging plate 104 also ensures a close fit between it and the rotor, and will not be displaced due to vibration during the operation of the motor, thereby further enhancing the reliability of the entire device.

[0040] Example 3

[0041] Reference Figure 1 , which is the third embodiment of the present invention, and this embodiment further provides an oil receiving device for preventing oil pollution of a large vertical bearing-type motor. The flange 102 is provided with at least six evenly distributed threaded holes for installing screws. The side wall of the oil receiving basin 103 is provided with at least six threaded holes, which match the screws on the flange 102, so that the oil receiving basin 103 can be fixed to the flange 102 through nuts and screws. The screw is made of high-carbon steel material, and the head of the screw is designed with a hexagonal wrench notch, and the tail end of the screw is designed with a self-locking thread to prevent the screw from loosening due to motor vibration. The oil receiving basin 103 and the oil throwing plate 104 are both made of anti-corrosion materials.

[0042] In this embodiment, the flange 102 is one of the connecting parts, and is provided with at least six evenly distributed threaded holes. The positions of these threaded holes are designed to ensure that the oil receiving basin 103 can be firmly fixed at the predetermined position of the motor during installation. The side wall of the oil receiving basin 103 is provided with at least six threaded holes, and these holes correspond to the screws on the flange 102, so that the oil receiving basin 103 can be fixed on the flange 102 by nuts. In terms of material selection, the oil receiving basin 103 adopts materials with anti-corrosion properties, such as stainless steel or metal materials with special coating treatment, to enhance its service life and reduce maintenance costs caused by corrosion.

[0043] In order to ensure the tightness between the oil receiving basin 103 and the flange 102, the present invention selects high carbon steel material to manufacture the screw. This material is not only hard and wear-resistant, but also has good tensile strength. The head of the screw is designed with a hexagonal wrench notch, which is convenient for tightening or loosening with tools; and the tail end of the screw is designed with a self-locking thread. This design can effectively prevent the screw from loosening due to vibration generated during the operation of the motor, thereby ensuring that the oil receiving basin 103 remains stable and reliable for a long time.

[0044] The oil-slinging pan 104 is located near the rotating parts inside the motor, and its function is to capture and guide the oil droplets or oil mist splashed out due to the rotation when the motor is running, and guide them to the oil receiving basin 103. The oil-slinging pan 104 also needs to be made of anti-corrosion materials to avoid corrosion damage caused by long-term contact with oil.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An oil receiving device for preventing oil pollution of a large vertical bearing-type motor, characterized in that: include, Motor rotor (100); A motor bracket (101), the motor bracket (101) being used to support a motor rotor (100), the motor bracket (101) being provided with a flange (102) on a lower plane thereof for fixing other components; An oil receiving basin (103), wherein the oil receiving basin (103) can be inserted from the upper part of the motor rotor (100) and positioned in the middle part of the motor rotor (100); An oil-slinging pan (104) is installed at a predetermined position of the oil seal of the motor rotor (100) to ensure that the oil is effectively intercepted and guided into the oil receiving basin (103).

2. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 1, characterized in that: The oil-slinging plate (104) is annular, and both inner and outer walls of the oil-slinging plate (104) need to be polished.

3. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 2, characterized in that: The inner hole diameter of the oil-slinging plate (104) is 0.03 to 0.04 mm smaller than the outer diameter of the oil seal of the motor rotor.

4. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 3, characterized in that: The oil-slinging pan (104) is installed at a position 2 to 6 centimeters below the sealing position of the motor rotor oil seal after being heated, so as to guide the oil into the oil receiving basin (103).

5. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 4, characterized in that: When the motor rotor (100) rotates, the oil-spinning pan (104) rotates accordingly and spins the oil into the oil receiving basin (103).

6. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 1, characterized in that: The flange (102) is provided with at least six evenly distributed threaded holes for installing screw rods.

7. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 6, characterized in that: The side wall of the oil receiving basin (103) is provided with at least six threaded holes, which match the screws on the flange (102), so that the oil receiving basin (103) can be fixed on the flange (102) through nuts and screws.

8. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 7, characterized in that: The screw is made of high carbon steel and the screw head is designed with a hexagonal wrench notch.

9. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor as claimed in claim 8, characterized in that: The tail end of the screw is designed with a self-locking thread.

10. The oil receiving device for preventing oil pollution of a large vertical bearing-type motor according to claim 9, characterized in that: The oil receiving basin (103) and the oil throwing tray (104) are both made of anti-corrosion materials.

Images