Motor oil seal tool

Abstract

The utility model relates to the technical field of new energy motor assembly, and discloses a motor oil seal tool which is characterized in that an oil seal installation groove is formed in the end face of a motor, an oil seal is arranged in the oil seal installation groove, the oil seal tool is fixed to the oil seal, and the oil seal tool comprises a positioning shaft core installed in a motor shell. The guide table, the limiting table, the reinforcing table and the fixing table are sequentially located at the bottom of the positioning shaft core; the diameter of the guide table is larger than the outer diameter of the positioning shaft core, and the diameters of the guide table, the limiting table, the reinforcing table and the fixing table are sequentially decreased. The new energy motor oil seal tool solves the problems that an oil seal deflects and is not concentric when the oil seal is installed on a new energy motor, so that the phenomena that the oil seal is not pressed in place, the edge of the oil seal is cut, the sealing quality of the oil seal is unqualified and the like are avoided, and the tool is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy motor assembly, in particular to a new energy automobile motor oil seal tooling. Background Art

[0002] Oil seal is a common name for general seals, which simply means the seal of lubricating oil. It is a mechanical component used to seal grease. The function of oil seal components is generally to isolate the parts of the transmission components that need lubrication from the external environment to prevent the leakage of lubricating oil, and to prevent dust, water vapor and oil. Since the oil seal and the casing are interference fit, and the casing is deep, tooling components are required to install the oil seal.

[0003] The existing oil seal tooling generally has two contact surfaces, one contact surface contacts the inner concave surface of the oil seal, and the other contact surface contacts the inner sleeve of the steel ring. However, due to the deep shell, the oil seal end face is easily deflected and not concentric with the shell due to the lack of guidance during the installation process, resulting in installation failure. There is also an oil seal tooling with a guiding function to prevent the oil seal from being eccentric, but the tooling is complex, the structure is separate, and the manufacturing cost is high.

[0004] Therefore, how to provide a motor oil seal fixture with a simple structure and a guiding function is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0005] In view of this, the utility model provides a motor oil seal tooling, which not only has a guiding function but also has a simple structure and low manufacturing cost.

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

[0007] A motor oil seal fixture, wherein an oil seal installation groove is provided on the motor end surface, an oil seal is provided in the oil seal installation groove, the oil seal fixture is fixed to the oil seal, and the oil seal fixture comprises a positioning shaft core installed in the motor housing, a guide platform, a limit platform, a reinforcement platform and a fixing platform sequentially located at the bottom of the positioning shaft core;

[0008] The diameter of the guide platform is larger than the outer diameter of the positioning shaft core, and the diameters of the guide platform, the limiting platform, the reinforcing platform, and the fixing platform decrease in sequence.

[0009] Preferably, in the above-mentioned motor oil seal tooling, the positioning shaft core is a hollow cylinder, and the positioning shaft core is coaxial with the motor housing.

[0010] Preferably, in the above-mentioned motor oil seal tooling, the guide platform is provided with a chamfer.

[0011] Preferably, in the above-mentioned motor oil seal tooling, the guide platform, the limit platform, the reinforcement platform and the fixing platform are integrally formed.

[0012] Preferably, in the above-mentioned motor oil seal tooling, the oil seal is provided with an oil seal groove, and the fixing platform is installed in the oil seal groove.

[0013] Preferably, in the above-mentioned motor oil seal tooling, the positioning shaft core, the guide platform, the limit platform, and the reinforcement platform are adapted to the shape of the inner cavity of the motor housing.

[0014] The utility model provides a motor oil seal tooling, which has the following beneficial effects compared with the prior art:

[0015] The motor oil seal tooling of the utility model is an integrated structure with a simple structure and low manufacturing cost. The positioning shaft core makes the oil seal tooling as a whole coaxial with the motor housing and has positioning and guiding functions, and the interior of the positioning shaft core is hollow, and a weight reduction treatment is performed, thereby reducing material costs; the guide table is arranged in a chamfered shape with a fixing and guiding function, ensuring that the oil seal is concentric with the housing when the oil seal tooling is installed, thereby avoiding the phenomenon of the oil seal not being pressed into place, the oil seal cutting edge, and the oil seal having unqualified sealing quality; the reinforcing table plays a role in enhancing the strength of the oil seal tooling; the limit table plays a limiting role, so that the oil seal will not be subjected to excessive pressure and cause damage to the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the assembly state of an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A partial schematic diagram of

[0019] Figure 3 This is a schematic diagram of the structure of the oil seal tooling of the utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the structure of the oil seal tooling of the utility model. Figure 2 ;

[0021] Figure 5 It is a structural schematic diagram of the oil seal of the utility model.

[0022] 100-oil seal, 200-oil seal tooling, 210-positioning shaft core, 220-guide table, 230-limiting table, 240-enhancement table, 250-fixed table, 300-motor housing. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] like Figure 1-2 As shown, an embodiment of the utility model provides a motor oil seal tool 200, the motor end face is provided with an oil seal mounting groove, an oil seal 100 is provided in the oil seal mounting groove, the oil seal tool 200 is fixed to the oil seal 100, and the oil seal tool 200 includes a positioning shaft core 210 installed in the motor housing 300, a guide platform 220, a limit platform 230, a reinforcement platform 240 and a fixing platform 250 which are sequentially located at the bottom of the positioning shaft core 210.

[0028] like Figure 3-4As shown, in some embodiments of the present invention, the diameter of the guide platform 220 is larger than the outer diameter of the positioning shaft core 210, and the diameters of the guide platform 220, the limiting platform 230, the reinforcing platform 240, and the fixing platform 250 decrease in sequence.

[0029] Specifically, the guide platform 220 is fixed to the bottom of the positioning shaft core 210 and is integrally formed with the positioning shaft core 210, the limit platform 230 is integrally formed at the bottom of the guide platform 220, the reinforcement platform 240 is integrally formed at the bottom of the limit platform 230, and the fixed platform 250 is integrally formed at the bottom of the reinforcement platform 240, and the guide platform 220, the limit platform 230, the reinforcement platform 240, and the fixed platform 250 all have a certain thickness, and the thickness dimension is determined according to the dimensions of the motor housing 300 and the oil seal groove 110, and no special limitation is made to this; in addition, the cross-sectional shape of the guide platform 220, the limit platform 230, the reinforcement platform 240, and the fixed platform 250 can be any shape such as circular, square, polygonal, etc., which can be adapted to the shape of the inner cavity of the motor housing 300.

[0030] In some embodiments of the present invention, the positioning shaft core 210 is a hollow cylinder, and the positioning shaft core 210 is coaxial with the motor housing 300. The oil seal tooling 200 as a whole is coaxial with the motor housing 300 and has positioning and guiding functions. The interior of the positioning shaft core 210 is hollow and has been subjected to weight reduction treatment, thereby reducing material costs.

[0031] In some embodiments of the utility model, the guide platform 220 is provided with a chamfer, which has a fixing and guiding function, ensuring that the oil seal 100 is concentric with the motor housing 300 during installation, thereby avoiding the occurrence of phenomena such as the oil seal 100 not being pressed into place, the oil seal 100 being trimmed, and the oil seal 100 having unqualified sealing quality.

[0032] In some embodiments of the present invention, the guide platform 220, the limiting platform 230, the reinforcing platform 240 and the fixing platform 250 are integrally formed to form a multi-step structure, which is easy to install and has low manufacturing cost.

[0033] like Figure 5 As shown, in some embodiments of the present invention, the oil seal 100 is interference-fitted with the motor housing 300 , the oil seal 100 is provided with an oil seal groove 110 , and the fixing platform 250 is installed in the oil seal groove 110 .

[0034] In some embodiments of the utility model, the positioning shaft core 210, the guide platform 220, the limit platform 230, and the reinforcement platform 240 are adapted to the inner shape of the motor housing 300, wherein the guide platform 220 has a fixing and guiding function to ensure that the oil seal 100 is concentric with the housing during installation, effectively avoiding the occurrence of phenomena such as the oil seal 100 not being pressed into place, the oil seal 100 being trimmed, and the oil seal 100 having unqualified sealing quality; there is a gap between the side of the reinforcement platform 240 and the motor housing 300, which plays a role in enhancing the strength of the oil seal tooling 200; the side of the limit platform 230 is in contact with the motor housing 300, and the bottom surface and the fixing platform 250 act together on the oil seal 100, which not only has a limiting function, but also can prevent the oil seal 100 from being damaged by excessive pressure.

[0035] The installation process of the motor oil seal tooling 200 of the utility model is as follows: first, the motor housing 300 is inverted, and the end face of the motor housing 300 is fixed by the housing tooling with a hollow in the middle, and then the oil seal tooling 200 is inserted into the oil seal groove 110, and then the oil seal 100 and the oil seal tooling 200 are placed in the housing, and the guide platform 220 of the tooling is in contact with the housing wall, which will ensure that the oil seal tooling 200 is concentric with the housing, and the chamfer of the guide platform 220 will make it easier for the oil seal tooling 200 to enter the motor housing 300. When the oil seal 100 and the oil seal tooling 200 reach the contact position at the top of the oil seal installation groove, due to the interference fit, a press is required to press the oil seal 100 and the oil seal tooling 200 into the oil seal installation groove.

[0036] In summary, the utility model provides a new energy motor oil seal tooling, which solves the problems of oil seal deviation and eccentricity when installing oil seals on new energy motors, thereby avoiding the occurrence of phenomena such as oil seals not being pressed into place, oil seals being cut, and oil seals having unqualified sealing quality. The tooling has a simple structure and low production cost.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A motor oil seal fixture, wherein the motor end surface is provided with an oil seal installation groove, an oil seal is provided in the oil seal installation groove, and the oil seal fixture is fixed to the oil seal, characterized in that: The oil seal tooling comprises a positioning shaft core installed in the motor housing, a guide platform, a limit platform, a reinforcement platform and a fixing platform which are sequentially located at the bottom of the positioning shaft core; The diameter of the guide platform is larger than the outer diameter of the positioning shaft core, and the diameters of the guide platform, the limiting platform, the reinforcing platform, and the fixing platform decrease in sequence.

2. The motor oil seal fixture according to claim 1, characterized in that: The positioning shaft core is a hollow cylinder, and the positioning shaft core is coaxial with the motor housing.

3. The motor oil seal fixture according to claim 1, characterized in that: The guide platform is provided with a chamfer.

4. The motor oil seal fixture according to claim 1, characterized in that: The guide platform, the limiting platform, the reinforcing platform and the fixing platform are integrally formed.

5. The motor oil seal fixture according to claim 1, characterized in that: The oil seal is provided with an oil seal groove, and the fixing platform is installed in the oil seal groove.

6. The motor oil seal fixture according to claim 1, characterized in that: The positioning shaft core, the guide platform, the limiting platform and the reinforcing platform are adapted to the shape of the inner cavity of the motor housing.

Images