Moving seal assembly mounting structure

Abstract

The utility model discloses a dynamic seal assembly installation structure, which relates to the technical field of motor assemblies, and comprises a dynamic seal assembly, one side of the dynamic seal assembly is connected with an external end cover through a screw, and solves the problems that a sealing ring can only be installed on a rotating shaft of an existing motor through a special tool, an oil seal is inconvenient to maintain, and the operation is troublesome. The dynamic seal assembly is connected with the external end cover through the screws, when the oil seal needs to be replaced, only the screws for fixing the dynamic seal assembly need to be loosened, the old dynamic seal assembly needs to be disassembled, and a new dynamic seal assembly needs to be replaced, so that the oil seal is easy to maintain, and the dynamic seal O-shaped ring is directly clamped into the oil seal of the external end cover to be fixed. Because the oil seal is installed in the external end cover in advance, the oil seal does not need to be installed by using a special tool in the final assembly stage when the motor is finally assembled in a production line, and the defect that the original oil seal can only be operated by using the special tool is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor assembly technical field, concretely is a dynamic sealing assembly mounting structure. BACKGROUND

[0002] At present, along with the wide application of permanent magnet motor in aerospace, automobile, automation and electric appliance and other industries, especially the application environment such as aerospace and automobile often has higher requirement to the reliability, maintainability and durability of motor, therefore the protection grade requirement of motor also correspondingly improves, and the protection grade of motor is usually represented by IP (Ingress Protection) code, it is an international standard, and is used to describe the protection degree of electrical equipment to solid objects (such as dust) and water, in order to meet the requirement of high protection grade of these industries, the design and manufacture of permanent magnet motor must take special protection measures, such as using static sealing end cover, shell part, dynamic sealing of shaft extension part of motor shaft and other protection measures, and the dynamic sealing protection measure of the shaft extension part of motor shaft is more important, since the high-speed operation of motor shaft during operation, and the abrasion of dynamic sealing caused by vibration, impact and the like, dynamic sealing belongs to the easily-damaged part and needs to be conveniently replaced and maintained.

[0003] The conventional installation mode of the dynamic sealing of the shaft extension part of the existing motor shaft is that O-shaped ring is installed on the end cover, and then the rotor is installed in the stator, finally the oil seal is pressed into the end cover by using special tooling, and this conventional dynamic sealing installation structure has the following shortcomings: the oil seal is inconvenient to install, and special tool is needed to install the sealing ring; the oil seal is inconvenient to maintain, after use in the user's field, when the oil seal needs to be replaced, the end cover needs to be removed first, the oil seal is pushed out from the back of the oil seal by using tool, then the end cover is installed on the stator, and then the new oil seal is pressed into the end cover by using special tooling, and the operation is more troublesome.

[0004] In view of the above problems, a dynamic sealing assembly mounting structure is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of dynamic sealing assembly mounting structures, solve the problem that the dynamic sealing of the shaft extension part of the existing motor shaft in background technology is installed conventionally, needs to be pressed into the end cover by using special tooling to oil seal, leading to installation sealing ring needs special tool to install, while oil seal is inconvenient to maintain, needs to be removed first, the end cover is installed on the stator, and the operation is more troublesome by using tool from the back of the oil seal and pushing out oil seal.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a dynamic sealing assembly mounting structure, including dynamic seal assembly, the one side of dynamic seal assembly is connected with external end cover, the dynamic seal assembly includes dynamic seal end cover, the one side of dynamic seal end cover is clamped with dynamic O type ring, the one side of dynamic O type ring is connected with PTEE oil seal, and the PTEE oil seal is arranged in dynamic seal end cover.

[0007] Preferably, the dynamic seal end cover is provided with end cover bayonet around, and the end cover bayonet is circular array and is provided with six groups.

[0008] Preferably, the dynamic seal end cover is provided with ring groove inside, and the ring groove is used for clamping dynamic O type ring.

[0009] Preferably, the PTEE oil seal includes thick sealing layer clamped into dynamic seal end cover, connecting sealing layer for sealing dynamic O type ring, rotor sealing layer connected inside connecting sealing layer, and thick sealing layer, connecting sealing layer and rotor sealing layer are fixedly connected.

[0010] Preferably, the dynamic seal assembly is rotatably sleeved with motor rotor inside.

[0011] Preferably, the dynamic seal assembly and external end cover are connected through screw, and external O type ring is clamped between the dynamic seal assembly and external end cover.

[0012] Preferably, the one side of external O type ring is connected with motor stator through screw, and external O type ring is clamped between external O type ring and motor stator.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] 1, the dynamic sealing assembly mounting structure provided by the utility model is connected through the screw of dynamic seal assembly and external end cover, the dynamic O type ring needs to be placed into the corresponding groove of dynamic seal end cover when the dynamic seal assembly is installed, then the PTEE oil seal is pressed into dynamic seal end cover, and the dynamic seal assembly is formed, the installation position of dynamic seal assembly is seen in the figure, and the dynamic seal assembly is directly installed on external end cover, so that when the oil seal needs to be replaced after the component is used in the user's field, only the screw for fixing the dynamic seal assembly needs to be loosened, the old dynamic seal assembly is removed, and the new dynamic seal assembly is replaced, so that the oil seal maintenance is simple, the inconvenient oil seal maintenance of the motor rotating shaft is solved, the end cover needs to be removed first, the oil seal is pushed out from the back of the oil seal by using a tool, and then the end cover is installed on the stator, and the operation is more troublesome.

[0015] 2. The dynamic sealing assembly mounting structure, through the direct clamping of the dynamic O-shaped ring and the oil seal fixing of the external end cover, since the oil seal has been pre-installed in the external end cover, when the motor is finally assembled in the production line, a special tool is not needed to install the oil seal in the final assembly stage, the original oil seal needs special tools to operate, the dynamic seal of the shaft extension part of the existing motor shaft after the conventional installation is completed, the oil seal is pressed into the end cover by using a special tool, and the problem that special tools are needed to install the sealing ring is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a whole structure schematic diagram of the utility model;

[0018] Figure 3 It is a whole split structure schematic diagram of the utility model Figure 1 ;

[0019] Figure 4 It is a whole split structure schematic diagram of the utility model Figure 2 ;

[0020] Figure 5 It is a whole split structure schematic diagram of the utility model;

[0021] Figure 6 It is a schematic diagram of the original oil seal assembly structure of the utility model;

[0022] Figure 7 It is a schematic diagram of the improved oil seal assembly structure of the utility model.

[0023] In the drawing: 1, dynamic assembly; 11, PTEE oil seal; 111, thick sealing layer; 112, connecting sealing layer; 113, rotor sealing layer; 12, dynamic sealing end cover; 121, end cover bayonet; 122, ring groove; 13, dynamic O-shaped ring; 2, external O-shaped ring; 3, external end cover; 4, motor stator; 5, motor rotor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0026] In combination Figure 1 The utility model discloses a dynamic sealing assembly mounting structure, including dynamic seal assembly 1, the one side screw connection of dynamic seal assembly 1 has external end cap 3, and dynamic seal assembly 1 includes dynamic seal end cap 12, and the one side of dynamic seal end cap 12 is clamped with dynamic seal O type ring 13, and the one side of dynamic seal O type ring 13 is connected with PTEE oil seal 11, and PTEE oil seal 11 is arranged in the inside of dynamic seal end cap 12.

[0027] Specifically, dynamic seal assembly 1 needs to be installed first dynamic seal O type ring 13 is put into the corresponding slot of dynamic seal end cap 12, then PTEE oil seal 11 is pressed into dynamic seal end cap 12, and dynamic seal assembly 1 is formed, and the installation position of dynamic seal assembly 1 is seen Figure 7 Directly installed on external end cap 3, so that when the oil seal needs to be replaced after the assembly is used in the user's field, only the screw for fixing dynamic seal assembly 1 is loosened, the old dynamic seal assembly 1 is removed, and the new dynamic seal assembly 1 is replaced, so that the oil seal maintenance is simple, and at the same time, since the oil seal has been pre-installed in the external end cap 3, a special tool is not needed to install the oil seal during the final assembly of the motor in the production line, and the original disadvantage that the oil seal needs to be operated by using a special tool is changed.

[0028] The utility model will be further described in connection with the embodiments.

[0029] Embodiment one:

[0030] In combination Figures 2-5 The periphery of dynamic seal end cap 12 is provided with end cap bayonet 121, six groups of end cap bayonet 121 are arranged in a circular array, and screws are inserted into the six groups of end cap bayonet 121 to connect dynamic seal end cap 12 and external end cap 3.

[0031] The inside of dynamic seal end cap 12 is provided with ring groove 122, the ring groove 122 is used for clamping dynamic seal O type ring 13, the ring groove 122 is embedded in the dynamic seal O type ring 13, and the contact surface of PTEE oil seal 11 and dynamic seal end cap 12 is sealed.

[0032] PTEE oil seal 11 includes thick sealing layer 111 clamped into dynamic seal end cap 12, connecting sealing layer 112 for sealing dynamic seal O type ring 13, and rotor sealing layer 113 connected in the inside of connecting sealing layer 112, the thick sealing layer 111, connecting sealing layer 112 and rotor sealing layer 113 are fixedly connected, the thick sealing layer 111 is pressed into the inside of dynamic seal end cap 12 and fixed, connecting sealing layer 112 is sealed by being attached to dynamic seal O type ring 13, and rotor sealing layer 113 rotates and surrounds motor rotor 5.

[0033] Embodiment two:

[0034] In combination Figure 7The inner rotating sleeve of the dynamic sealing assembly 1 is sleeved with the motor rotor 5, the dynamic sealing assembly 1 and the motor rotor 5 rub against each other, which can cause damage to the dynamic sealing assembly 1, and the dynamic sealing assembly 1 needs to be replaced.

[0035] The dynamic sealing assembly 1 and the external end cover 3 are connected by screws, and the external O-ring 2 is clamped between the dynamic sealing assembly 1 and the external end cover 3.

[0036] One side of the external O-ring 2 is connected with the motor stator 4 by screws, and the external O-ring 2 is clamped between the external O-ring 2 and the motor stator 4, and the external O-ring 2 between the external end cover 3 and the motor stator 4 realizes the first layer of oil seal, and the external O-ring 2 between the dynamic sealing assembly 1 and the external end cover 3 realizes the second layer of oil seal, and the dynamic O-ring 13 in the dynamic sealing assembly 1 is arranged at the outermost side, so that the oil sealing performance is not affected when the dynamic sealing assembly 1 is disassembled.

[0037] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dynamic seal assembly mounting structure comprising a dynamic seal assembly (1), characterised in that: The dynamic seal assembly (1) is screw-connected with an external end cover (3) on one side. The dynamic seal assembly (1) comprises a dynamic seal end cover (12), one side of the dynamic seal end cover (12) is clamped with a dynamic seal O-shaped ring (13), one side of the dynamic seal O-shaped ring (13) is connected with a PTEE oil seal (11), and the PTEE oil seal (11) is arranged inside the dynamic seal end cover (12).

2. The dynamic seal assembly mounting structure of claim 1, wherein: A plurality of end cover clamping grooves (121) are arranged around the dynamic seal end cover (12) in a circular array.

3. The dynamic seal assembly mounting structure of claim 1, wherein: A ring groove (122) is arranged inside the dynamic seal end cover (12) and used for clamping the dynamic seal O-shaped ring (13).

4. The mechanical seal assembly mounting structure of claim 1, wherein: The PTEE oil seal (11) comprises a thick sealing layer (111) clamped into the dynamic seal end cover (12), a connecting sealing layer (112) used for sealing the dynamic seal O-shaped ring (13), a rotor sealing layer (113) connected inside the connecting sealing layer (112), and the thick sealing layer (111), the connecting sealing layer (112) and the rotor sealing layer (113) are fixedly connected.

5. The mechanical seal assembly mounting structure of claim 1, wherein: The dynamic seal assembly (1) is rotatably sleeved with a motor rotor (5) inside.

6. The mechanical seal assembly mounting structure of claim 1, wherein: The dynamic seal assembly (1) and the external end cover (3) are screw-connected, and an external O-shaped ring (2) is clamped between the dynamic seal assembly (1) and the external end cover (3).

7. A mechanical seal assembly mounting structure according to claim 6, wherein: One side of the external O-shaped ring (2) is screw-connected with a motor stator (4), and an external O-shaped ring (2) is clamped between the external O-shaped ring (2) and the motor stator (4).

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