Limiting structure of motor high-speed shaft bearing of electric new energy automobile

Abstract

The utility model provides an electric new energy automobile motor high-speed shaft bearing limit structure, which comprises a limit ring and a bayonet, the limit ring is made of an elastic metal material, the end part of the limit ring is fixedly connected with the bayonet, the other end of the limit ring is provided with a notch, the notch is movably connected with a rotating handle, and the rotating handle is fixedly connected with the bayonet. The bayonet is provided with a locking hole, the outer surface of the rotating handle is fixedly connected with a clamping protrusion, and the clamping protrusion is clamped in the locking hole. The utility model has the advantages that the locking hole is matched with the clamping bulge to form a first point limiting structure, then the clamping piece is clamped into the gap between the root part of the rotating handle and the notch to prevent the rotating handle from rotating, the rotating handle is firmly clamped at the moment, the clamping piece is matched with the rotating handle and the notch to form a second point limiting structure, and the whole limiting ring is matched with the rotating handle to form a complete closing structure; and the limiting piece can be effectively prevented from being separated when the bearing rotates at a high speed, the axial displacement of the bearing can be prevented, and the use is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of motor bearings, in particular to a limiting structure of a high-speed shaft bearing of a motor of an electric new energy vehicle. Background Art

[0002] High-speed motors usually refer to motors with speeds exceeding 10,000 r / min. They have high speeds, are much smaller than ordinary power motors, are connected to the prime mover, eliminate the traditional reduction mechanism, and have small rotational inertia. Therefore, they have the advantages of high motor power density, effective material saving, high transmission efficiency, low noise, and fast dynamic response.

[0003] In order to prevent the bearing from axial displacement, open retaining rings are usually used to limit the motor bearings. However, the rotor speed of high-speed motors is high. When the motor runs at high speed, the open retaining ring will be detached due to the huge centrifugal force, causing the bearing to axially shift, thereby affecting the working performance and normal working life of the motor. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to propose a limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a limiting structure of a high-speed shaft bearing of an electric new energy vehicle motor, comprising a limiting ring and a bayonet, wherein the limiting ring is made of elastic metal material, and the end of the limiting ring is fixedly connected with the bayonet;

[0007] A notch is provided at the other end of the limiting ring, a rotating handle is movably connected to the notch, and a locking hole is provided on the bayonet;

[0008] The outer surface of the turning handle is fixedly connected with a locking protrusion, and the locking protrusion is locked in the locking hole;

[0009] The inner side of the rotating handle is fixedly connected with a tilting point, and a clamping piece is clamped between the root of the rotating handle and the notch;

[0010] Two corners of the clamping member abut against the inner side of the notch, and the other two corners of the clamping member abut against the root of the handle. The clamping member is a multi-bending structure.

[0011] Preferably, any of the above schemes has a U-shape, and the handle connects the notch and the bayonet.

[0012] Adopting the above technical solution: This device is specially used for limiting the high-speed bearings of new energy vehicle motors to prevent the bearings from axial movement.

[0013] Preferably, in any of the above schemes, the shape of the turning handle is arc-shaped, and the locking hole is connected to the inner side of the bayonet.

[0014] Adopting the above technical solution: the core structure of this device is: limit ring, bayonet, notch, turning handle, locking hole, locking protrusion, tilting point, and clamp. The core advantages of this device are: easy and convenient installation, double-point limiting, preventing separation, and reliable limiting. The limit ring initially has a notch. The limit ring can be directly bent and inserted into the inner groove of the bearing mounting frame, and abut against both sides of the bearing to limit the bearing. After locking, turn the turning handle, the locking protrusion is inserted into the locking hole, and the turning handle closes the limit ring;

[0015] The cooperation of the locking hole and the locking protrusion is the first-point limiting structure, and then the clamping piece is inserted into the gap between the root of the turning handle and the slot to prevent the turning handle from rotating. The turning handle will be firmly stuck at this time, and the clamping piece cooperates with the design of the turning handle and the slot to form the second-point limiting structure. The entire limiting ring cooperates with the turning handle structure to be completely closed and the limiting is firm, which can effectively prevent the limiting piece from detaching when the bearing rotates at high speed, prevent axial displacement of the bearing, and make it more reliable to use.

[0016] Preferably, in any of the above schemes, the shape of the locking protrusion is hemispherical, and the tilting point is located in the middle of the inner side of the turning handle.

[0017] Preferably, in any of the above schemes, the clamping member is a three-bending structure.

[0018] The above technical solution is adopted: when disassembling the limiting structure, the clamp is first lifted out from the root of the handle, and then the handle is rotated at the lifting point to open the limiting ring, and then the limiting ring is lifted out from the groove of the bearing mounting frame.

[0019] Preferably, in any of the above solutions, the material of the clamp is plastic.

[0020] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0021] The limiting structure of the high-speed shaft bearing of the electric new energy vehicle motor is convenient and simple to install, with double-point limiting, preventing separation, and reliable limiting, through the matching arrangement of the limiting ring, the bayonet, the notch, the turning handle, the locking hole, the locking protrusion, the tilting point, and the clamping piece. The limiting ring initially has a notch, and the limiting ring can be directly bent and inserted into the inner groove of the bearing mounting frame, and abut against both sides of the bearing to limit the bearing. After locking, turn the turning handle, the locking protrusion is inserted into the locking hole, and the turning handle closes the limiting ring;

[0022] The cooperation of the locking hole and the locking protrusion is the first-point limiting structure, and then the clamping piece is inserted into the gap between the root of the turning handle and the slot to prevent the turning handle from rotating. The turning handle will be firmly stuck at this time, and the clamping piece cooperates with the design of the turning handle and the slot to form the second-point limiting structure. The entire limiting ring cooperates with the turning handle structure to be completely closed and the limiting is firm, which can effectively prevent the limiting piece from detaching when the bearing rotates at high speed, prevent axial displacement of the bearing, and make it more reliable to use.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0026] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0027] Figure 3 This is a front view structural schematic diagram of the utility model;

[0028] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0029] In the figure: 1-limiting ring, 2-bayonet, 3-slot, 4-turn handle, 5-locking hole, 6-bayonet protrusion, 7-tilt point, 8-card. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection 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 the present invention can be understood according to specific circumstances.

[0032] like Figure 1-4 As shown, the limiting structure of the high-speed shaft bearing of the electric new energy vehicle motor comprises a limiting ring 1 and a bayonet 2. The limiting ring 1 is made of elastic metal, and the end of the limiting ring 1 is fixedly connected with the bayonet 2;

[0033] A notch 3 is provided at the other end of the limiting ring 1, a rotating handle 4 is movably connected to the notch 3, and a locking hole 5 is provided on the bayonet 2;

[0034] The outer surface of the turning handle 4 is fixedly connected with a locking protrusion 6, and the locking protrusion 6 is locked in the locking hole 5;

[0035] The inner side of the handle 4 is fixedly connected with a pivot point 7, and a clamping piece 8 is clamped between the root of the handle 4 and the notch 3;

[0036] Two corners of the clamping member 8 abut against the inner side of the notch 3 , and the other two corners of the clamping member 8 abut against the root of the handle 4 . The clamping member 8 is a multi-bending structure.

[0037] Embodiment 1: The shape of the bayonet 2 is U-shaped, and the handle 4 connects the notch 3 and the bayonet 2. This device is specially used for limiting the high-speed bearing of the motor of new energy vehicles to prevent the bearing from axial movement. The handle 4 is in an arc shape, and the locking hole 5 is connected to the inner side of the bayonet 2.

[0038] Embodiment 2: The shape of the positioning protrusion 6 is hemispherical, and the tilting point 7 is located in the middle of the inner side of the turning handle 4. The clamping member 8 is a three-bend structure. The material of the clamping member 8 is plastic. When disassembling this limiting structure, first tilt the clamping member 8 out from the root of the turning handle 4, then rotate the turning handle 4 at the tilting point 7 to open the limiting ring 1, and then tilt the limiting ring 1 out from the groove of the bearing mounting frame.

[0039] Description of the shape of the card member 8: The card member is similar to a U shape, and has an inclined top plate at its mouth.

[0040] The working principle of the utility model is as follows:

[0041] The limiting ring 1 initially has a notch. The limiting ring 1 can be bent directly and inserted into the inner groove of the bearing mounting frame, and abut against both sides of the bearing to limit the bearing. After being locked, the handle 4 is turned, and the locking protrusion 6 is locked into the locking hole 5, and the handle 4 closes the limiting ring 1;

[0042] Insert the clamp 8 into the gap between the root of the handle 4 and the notch 3 to prevent the handle 4 from rotating. The handle 4 will be firmly locked at this time.

[0043] When disassembling the limiting structure, first lift the clamp 8 out from the root of the handle 4, then rotate the handle 4 at the lifting point 7 to open the limiting ring 1, and then lift the limiting ring 1 out from the groove of the bearing mounting frame.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] The limiting structure of the high-speed shaft bearing of the electric new energy vehicle motor is convenient and simple to install, with double-point limiting, preventing separation, and reliable limiting, through the matching arrangement of the limiting ring 1, the bayonet 2, the notch 3, the turning handle 4, the locking hole 5, the locking protrusion 6, the tilting point 7, and the clamping piece 8. The limiting ring 1 initially has a notch, and the limiting ring 1 can be directly bent and inserted into the inner groove of the bearing mounting frame, and abut against both sides of the bearing to limit the bearing. After locking, turn the turning handle 4, the locking protrusion 6 is inserted into the locking hole 5, and the turning handle 4 closes the limiting ring 1;

[0046] The locking hole 5 cooperates with the locking protrusion 6 to form a first-point limiting structure, and then the clamping piece 8 is inserted into the gap between the root of the turning handle 4 and the notch 3 to prevent the turning handle 4 from rotating. The turning handle 4 will be firmly stuck at this time, and the clamping piece 8 cooperates with the design of the turning handle 4 and the notch 3 to form a second-point limiting structure. The entire limiting ring 1 cooperates with the turning handle 4 structure to be completely closed, and the limiting is firm, which can effectively prevent the limiting piece from detaching when the bearing rotates at high speed, and can prevent the bearing from axial displacement, making it more reliable to use.

Claims

1. A limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor, characterized in that: It comprises a limiting ring (1) and a bayonet (2), wherein the limiting ring (1) is made of elastic metal material, and the end of the limiting ring (1) is fixedly connected to the bayonet (2); A notch (3) is provided at the other end of the limiting ring (1), a rotating handle (4) is movably connected to the notch (3), and a locking hole (5) is provided on the bayonet (2); The outer surface of the turning handle (4) is fixedly connected with a locking protrusion (6), and the locking protrusion (6) is locked in the locking hole (5); The inner side of the rotating handle (4) is fixedly connected with a pivot point (7), and a clamping piece (8) is clamped between the root of the rotating handle (4) and the notch (3); Two corners of the clamp (8) abut against the inner side of the notch (3), and the other two corners of the clamp (8) abut against the root of the handle (4). The clamp (8) is a multi-bend structure.

2. A limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor as claimed in claim 1, characterized in that: The shape of the bayonet (2) is U-shaped, and the rotating handle (4) connects the notch (3) and the bayonet (2).

3. A limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor as claimed in claim 2, characterized in that: The shape of the rotating handle (4) is arc-shaped, and the locking hole (5) is connected to the inner side of the bayonet (2).

4. A limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor as claimed in claim 3, characterized in that: The shape of the locking protrusion (6) is hemispherical, and the tilting point (7) is located in the middle of the inner side of the turning handle (4).

5. A limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor as claimed in claim 4, characterized in that: The clamping piece (8) is a three-bend structure.

6. A limiting structure for a high-speed shaft bearing of an electric new energy vehicle motor as claimed in claim 5, characterized in that: The material of the clamp (8) is plastic.

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