A bearing temperature measurement structure based on a disc motor

Abstract

The utility model relates to a kind of temperature measurement structure based on disc type motor bearing.The utility model includes motor end cover, bearing seat is set in motor end cover middle part, signal seat is set in the radial side end of motor end cover;Low-voltage signal plug-in, it is installed on signal seat;Stator core, located motor end cover inner side end face;Connecting assembly, including being set in the inner side end face of motor end cover, with the center axis of stator core as center circumferentially distributed and radially extended multiple connecting pieces, each connecting piece is connected between motor end cover and stator;Strengthen support assembly, including being set in the inner side end face of motor end cover, with the center axis of stator core as center circumferentially distributed and radially extended multiple support pieces, support piece adjacent signal seat is structured as lead-out piece, lead-out piece and the inner side end face between motor end cover form radially extended threading hole;Temperature sensor, its signal line is led out and connected to low-voltage signal plug-in through threading hole.The utility model realizes the accurate measurement to disc type motor bearing temperature.

Description

Technical Field

[0001] This utility model relates to the field of disc motor technology, and in particular to a temperature measurement structure based on disc motor bearings. Background Technology

[0002] Existing disc motors generally employ a maintenance-free bearing structure. Due to the flat, miniaturized structure of disc motors, their internal radial space is limited, with most of the space occupied by the stator to meet the design requirements of high power density and compact structure. Therefore, under current designs, it is difficult to place temperature sensors or temperature measuring devices at the bearing location, making real-time monitoring of bearing operating temperature impossible. This structure limits the application of disc motors in specific industries requiring bearing temperature monitoring (such as high-reliability equipment, aerospace, or special vehicles). Summary of the Invention

[0003] Therefore, this utility model provides a bearing temperature measurement structure based on a disc motor, which can measure the bearing temperature by reasonably arranging the temperature measurement components without significantly changing the existing motor end cover structure, thereby expanding the application scenarios of disc motors and improving their applicability.

[0004] To solve the above-mentioned technical problems, this utility model provides a temperature measurement structure based on a disc motor bearing, comprising: A motor end cover, wherein a bearing seat is provided in the middle of the motor end cover and a signal seat is provided along the radial side of the motor end cover; A low-voltage signal connector is installed on the signal socket; The stator core is located on the inner end face of the motor end cover; The connecting assembly includes a plurality of connecting members disposed on the inner end face of the motor end cover, circumferentially distributed and radially extending around the central axis of the stator core, and each connecting member is connected between the motor end cover and the stator core. The reinforced support assembly includes a plurality of support members disposed on the inner end face of the motor end cover, circumferentially distributed and radially extending around the central axis of the stator core, wherein the support member adjacent to the signal socket is configured as a lead-out member, and a radially extending wire hole is formed between the lead-out member and the inner end face of the motor end cover. A temperature sensor is mounted on the bearing housing, and the signal line of the temperature sensor is led out through the wire hole and connected to the low-voltage signal plug.

[0005] In one embodiment of this utility model, the connector is constructed as a first T-key, the first T-key is provided with a first connecting hole, the motor end cover is provided with a second connecting hole that mates with the first connecting hole, and the stator core is provided with a third connecting hole that mates with the first connecting hole and the second connecting hole respectively.

[0006] In one embodiment of this utility model, the protruding portion of the first T-shaped key abuts against the inner end face of the motor end cover.

[0007] In one embodiment of this utility model, the support member is constructed as a second T-shaped key.

[0008] In one embodiment of this utility model, the protruding portion of the second T-shaped key abuts against the inner end face of the motor end cover.

[0009] In one embodiment of this utility model, each of the support members is disposed between two adjacent connecting members.

[0010] In one embodiment of this utility model, the radial length of the support member is less than the radial length of the connector.

[0011] In one embodiment of this utility model, the lead-out member includes a connecting plate and at least two connecting ribs protruding from the connecting plate and abutting against the inner end face of the motor end cover, with a wire through hole formed between two adjacent connecting ribs and the inner end face of the motor end cover.

[0012] In one embodiment of this utility model, the temperature sensor is threadedly connected to the outer peripheral sidewall of the bearing housing.

[0013] In one embodiment of this utility model, the plurality of connecting members and the plurality of supporting members are all evenly distributed circumferentially around the central axis of the stator core.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: This utility model discloses a temperature measurement structure based on a disc motor bearing. Multiple connecting and supporting components are arranged circumferentially along the central axis of the stator core on the inner side of the motor end cover. The connecting components fix the stator core, and the supporting components improve the overall rigidity of the end cover and stator core. Near the lead-out seat, the supporting component is designed as a lead-out component, abutting against the inner end face of the end cover to form a radially extending wire hole. This allows the temperature sensor signal line, located on the outer periphery of the bearing housing, to be led out through this wire hole and electrically connected to an external low-voltage signal connector, achieving stable temperature signal output. Without significantly altering the original end cover and stator installation space, the design integrates stator core fixation and bearing temperature sensing functions through the connecting and reinforcing support components, resulting in simple installation and high reliability. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] Figure 1 This is an exploded structural diagram of the temperature measurement structure based on the disc motor bearing of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the connector of this utility model.

[0018] Figure 3 This is a structural schematic diagram of one side of the motor end cover of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the other side of the motor end cover of this utility model.

[0020] Figure 5 This is a schematic diagram of the stator core structure of this utility model.

[0021] Figure 6 This is a structural schematic diagram of the support component of this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the lead-out component of this utility model.

[0023] Explanation of reference numerals in the instruction manual: 1. Motor end cover; 11. Bearing housing; 12. Signal socket; 13. Low-voltage signal plug; 14. Second connection hole; 2. Stator core; 21. Third connecting hole; 3. Connecting component; 31. Connector; 311. First T-key; 312. First connecting hole; 4. Reinforced support components; 41. Support component; 411. Second T-key; 42. Lead-out component; 421. Wire hole; 422. Connecting plate; 423. Connecting rib; 5. Temperature sensor. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0026] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0027] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0028] Reference Figure 1 As shown, the present invention provides a temperature measurement structure based on a disc motor bearing, comprising: Motor end cover 1, a bearing seat 11 is provided in the middle of the motor end cover 1, and a signal seat 12 is provided along the radial side of the motor end cover 1; Low-voltage signal plug 13 (signal connector) is installed on the signal socket 12; The stator core 2 is located on the inner end face of the motor end cover 1; The connecting component 3 includes a plurality of connecting members 31 disposed on the inner end face of the motor end cover 1, circumferentially distributed and radially extending with the central axis of the stator core 2 as the center, and each connecting member 31 is connected between the motor end cover 1 and the stator core 2. The reinforcing support assembly 4 includes a plurality of support members 41 disposed on the inner end face of the motor end cover 1, which are circumferentially distributed and radially extended around the central axis of the stator core 2. The support member 41 adjacent to the signal socket 12 is configured as a lead-out member 42, and a radially extending wire hole 421 is formed between the lead-out member 42 and the inner end face of the motor end cover 1. Temperature sensor 5 is mounted on the bearing housing 11. The signal line of temperature sensor 5 is led out through the wire hole 421 and connected to the low-voltage signal plug 13.

[0029] In one embodiment, refer to Figure 2 As shown, the connector 31 is constructed as a first T-key 311, and the first T-key 311 has first connecting holes 312 distributed thereon; see reference Figure 4As shown, the motor end cover 1 is provided with a second connecting hole 14 that mates with the first connecting hole 312; refer to Figure 5 As shown, the stator core 2 is provided with a third connecting hole 21 that mates with the first connecting hole 312 and the second connecting hole 14 respectively.

[0030] Specifically, the protruding portion of the first T-shaped key 311 abuts against the inner end face of the motor end cover 1.

[0031] In one embodiment, refer to Figure 6 As shown, the support member 41 is constructed as a second T-key 411. Specifically, the protruding portion of the second T-key 411 abuts against the inner end face of the motor end cover 1 (which can be welded). The installation of the second T-key 411 can reinforce the stator core 2, making the wound stator core 2 more stable, thereby increasing the stability of the motor.

[0032] Specifically, each of the support members 41 is disposed between two adjacent connecting members 31. A ring skeleton is formed by multiple circumferentially distributed first T-keys 311 and second T-keys 411, which effectively improves the bonding strength and overall rigidity between the end cover and the stator, and prevents the stator from loosening under thermal deformation or vibration conditions.

[0033] In one embodiment, the radial length of the support member 41 is less than the radial length of the connector 31.

[0034] In one embodiment, refer to Figure 7 As shown, the lead-out component 42 includes a connecting plate 422 and at least two connecting ribs 423 protruding from the connecting plate 422 and abutting against the inner end face of the motor end cover 1. A wire-passing hole 421 is formed between adjacent two connecting ribs 423 and the inner end face of the motor end cover 1. The signal line of the temperature sensor 5 is radially led out through the wire-passing hole 421, facilitating wire threading and avoiding interference with rotating parts. The low-voltage signal plug-in 13 provides an independent electrical interface, excellent anti-interference performance, and high temperature measurement accuracy. Bearing temperature measurement allows for real-time monitoring of bearing usage and lifespan, thereby improving overall operational stability.

[0035] In one embodiment, refer to Figure 3 As shown, the temperature sensor 5 has threads and is threadedly connected to the outer peripheral sidewall of the bearing housing 11. The sensing end of the temperature sensor 5 is in close contact with the outer ring of the bearing, and can sense changes in the bearing's operating temperature in real time. The data is transmitted to the low-voltage signal plug-in 13 via a signal line, and the temperature data is acquired by an external controller (such as a PLC).

[0036] In one embodiment, the plurality of connectors 31 and the plurality of support members 41 are evenly distributed circumferentially around the central axis of the stator core 2.

[0037] This invention is based on the flattened structure of a disc motor. Without altering the original end cover and stator mounting space, multiple connecting pieces 31 and supporting pieces 41 are provided on the inner side of the motor end cover 1, distributed circumferentially along the central axis of the stator core 2. The connecting pieces 31 (first T-keys 311) are used to limit and fix the stator core 2 in the radial direction, ensuring stable mechanical fit under high-speed rotation and thermal expansion and contraction. The supporting pieces 41 (second T-keys 411) are arranged between adjacent connecting pieces 31 to improve the overall rigidity of the end cover and stator core 2. Near the lead-out seat, the supporting piece 41 is designed as a lead-out piece 42. The connecting rib 423 of the lead-out piece 42 abuts against the inner end face of the end cover to form a radially extending wire hole 421, allowing the signal line of the temperature sensor 5, located on the outer periphery of the bearing seat 11, to be safely led out along the wire hole 421 and electrically connected to the external low-voltage signal plug-in 13, achieving stable temperature signal output.

[0038] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A temperature measurement structure based on a disc motor bearing, characterized in that, include: Motor end cover (1), a bearing seat (11) is provided in the middle of the motor end cover (1), and a signal seat (12) is provided along the radial side of the motor end cover (1). A low-voltage signal plug (13) is installed on the signal socket (12); The stator core (2) is located on the inner end face of the motor end cover (1); The connecting component (3) includes a plurality of connectors (31) disposed on the inner end face of the motor end cover (1), which are circumferentially distributed and radially extended around the central axis of the stator core (2), and each connector (31) is connected between the motor end cover (1) and the stator core (2). The reinforcing support assembly (4) includes a plurality of support members (41) disposed on the inner end face of the motor end cover (1), which are circumferentially distributed and radially extended around the central axis of the stator core (2). The support member (41) adjacent to the signal seat (12) is configured as a lead-out member (42), and a radially extending wire hole (421) is formed between the lead-out member (42) and the inner end face of the motor end cover (1). Temperature sensor (5) is installed on the bearing housing (11), and the signal line of temperature sensor (5) is led out through the wire hole (421) and connected to the low voltage signal plug (13).

2. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, The connector (31) is constructed as a first T-key (311), the first T-key (311) is provided with a first connecting hole (312), the motor end cover (1) is provided with a second connecting hole (14) that cooperates with the first connecting hole (312), and the stator core (2) is provided with a third connecting hole (21) that cooperates with the first connecting hole (312) and the second connecting hole (14) respectively.

3. The temperature measurement structure based on a disc motor bearing according to claim 2, characterized in that, The protruding part of the first T-key (311) abuts against the inner end face of the motor end cover (1).

4. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, The support (41) is configured as a second T-key (411).

5. The temperature measurement structure based on a disc motor bearing according to claim 4, characterized in that, The protruding part of the second T-key (411) abuts against the inner end face of the motor end cover (1).

6. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, Each of the support members (41) is disposed between two adjacent connecting members (31).

7. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, The radial length of the support member (41) is less than the radial length of the connector (31).

8. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, The lead-out member (42) includes a connecting plate (422) and at least two connecting ribs (423) protruding from the connecting plate (422) and abutting against the inner end face of the motor end cover (1). A wire hole (421) is formed between two adjacent connecting ribs (423) and the inner end face of the motor end cover (1).

9. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, The temperature sensor (5) is threaded to the outer peripheral sidewall of the bearing housing (11).

10. The temperature measurement structure based on a disc motor bearing according to claim 1, characterized in that, The multiple connectors (31) and multiple support members (41) are all evenly distributed circumferentially around the central axis of the stator core (2).

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