Encoder with structure for preventing volatilization and adhesion of bearing oil and motor equipment

Abstract

The utility model provides an encoder with a structure for preventing volatilization and adhesion of bearing oil and motor equipment. The encoder comprises a mounting base, a grating module and a control assembly used for sensing optical signals of the grating module, the mounting base is used for being fixed with a rotating shaft of motor equipment, is positioned above a bearing of the motor equipment and rotates along with the rotating shaft of the motor equipment, and the grating module is arranged on the mounting base; the control assembly and the grating module are correspondingly arranged; at least one first containing groove is formed in the face, facing a bearing of the motor equipment, of the installation base. According to the encoder of the utility model, the first accommodating groove can collect the volatilized bearing oil, thereby preventing the bearing oil from being directly attached to the mounting base and affecting the signal transmission between the grating module and the control assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an encoder and a motor device with a structure for preventing bearing oil from volatilizing and adhering. Background Art

[0002] A rotating plate and a sensor are provided inside the motor mechanism. The rotating plate is fixed on the motor bearing. A grating is provided on the rotating plate. The sensor is fixed on the motor mounting bracket and receives the light signal emitted by the grating for photoelectric conversion, thereby providing feedback on the current motion state of the motor and enabling the driver to adjust the operation of the motor. When the motor is running at high speed, the motor bearings heat up, and the bearing oil applied to the motor bearings volatilizes due to heat to form an adhesive gas, which adheres to the grating of the rotating plate, blocking the optical transmission between the grating and the sensor, and preventing the light receiving part of the sensor from receiving the light signal emitted by the grating, resulting in the loss of the sensor's photoelectric conversion data, and being unable to accurately feedback the motion state of the motor, resulting in abnormal operation of the motor. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide an encoder with a structure for preventing bearing oil from volatilizing and adhering. The volatilized bearing oil can be collected by a first containing groove to prevent it from directly adhering to a mounting plate and affecting signal transmission between a grating module and a processor.

[0004] The utility model is realized by the following technical solutions:

[0005] An encoder with a bearing oil volatilization and adhesion prevention structure comprises a mounting base, a grating module and a control component for sensing an optical signal of the grating module;

[0006] The mounting base is used to be fixed to the rotating shaft of the motor device and is located above the bearing of the motor device. The mounting base rotates with the rotating shaft of the motor device. The grating module is arranged on the mounting base; the control component is arranged corresponding to the grating module; and at least one first accommodating groove is provided on a side of the mounting base facing the bearing of the motor device.

[0007] The utility model provides an encoder with a structure for preventing bearing oil from volatilizing and emitting. A mounting base rotates with the rotating shaft of a motor device. A grating module arranged on the mounting base can feed back an optical signal to a control component according to the rotation state of the rotating shaft of the motor device. A first containing groove is arranged on a side of the mounting base facing the bearing of the motor device. The volatilized bearing oil can be collected by the first containing groove to prevent it from directly adhering to the mounting base and affecting the signal transmission between the grating module and the control component.

[0008] Furthermore, the encoder with the anti-bearing oil volatilization and adhesion structure also includes a mounting bracket, the mounting bracket is arranged on the housing around the rotating shaft of the motor device, the control component is arranged on the mounting bracket, and the control component includes an optical signal processor for receiving and processing the grating module signal. The mounting bracket is used to be fixed to the housing and provide support for the optical signal processor.

[0009] Furthermore, a drainage gap is formed between the mounting base and the rotating shaft and the bearing, and the drainage gap is communicated with the first containing groove. The drainage gap formed between the mounting base and the rotating shaft and the bearing is used to guide the volatilized bearing oil to the first containing groove.

[0010] Furthermore, the first receiving groove is in an annular shape with the rotating shaft as the center. The annular receiving groove corresponds to the shape of the bearing to receive the bearing oil volatilized from the bearing.

[0011] Furthermore, the number of the first containing grooves is at least two, and they are arranged concentrically with the rotating shaft as the center. A plurality of first containing grooves are arranged to prevent excessive bearing oil from accumulating in a single first containing groove.

[0012] Furthermore, the mounting base includes an annular mounting plate and a connecting sleeve, the connecting sleeve is sleeved and fixed on the rotating shaft, the annular mounting plate is fixed to the outer wall of the connecting sleeve; the first containing groove is formed on a side of the annular mounting plate facing the bearing of the motor device. The annular mounting plate is firmly connected to the rotating shaft through the connecting sleeve.

[0013] Furthermore, the mounting bracket is annular, and a second receiving groove is provided on a side of the mounting bracket facing the mounting base, and the second receiving groove is staggered with the first receiving groove to form a curved receiving cavity. The first receiving groove and the second receiving groove are arranged opposite to each other to form a curved receiving cavity, which is convenient for accommodating volatile bearing oil and preventing it from overflowing.

[0014] Furthermore, the second accommodation groove is annular, which is adapted to the shape of the first accommodation groove. The shape of the second accommodation groove is adapted to the first accommodation groove to match and form a curved accommodation cavity.

[0015] Furthermore, a plurality of first bosses are provided on a side of the mounting base facing the mounting bracket, and every two adjacent first bosses form a first accommodating groove; a plurality of second bosses are provided on the mounting bracket, and every two adjacent second bosses form a second accommodating groove; wherein, the first boss extends into the second accommodating groove, and the second boss extends into the first accommodating groove, to form the curved accommodating cavity.

[0016] Furthermore, the number of the second containing grooves is at least two, and they are arranged concentrically with the rotating shaft as the center. A plurality of second containing grooves are arranged to prevent excessive bearing oil from accumulating in a single second containing groove.

[0017] The utility model also provides a motor device, including a housing, a rotating shaft, a bearing and the above-mentioned encoder with a structure for preventing bearing oil from volatilizing and adhering; the rotating shaft, the bearing and the encoder are located in the housing; the bearing is sleeved on the rotating shaft; the mounting base is fixed to the bearing and is located above the bearing.

[0018] In the motor device provided by the utility model, the volatile bearing oil is contained by the first containing groove and the second containing groove provided in the encoder, so as to prevent the bearing oil from adhering to the grating module on the mounting plate, so that the optical signal between the grating module and the control component is transmitted normally, and the operating state of the motor device is accurately reflected.

[0019] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an encoder with a structure for preventing bearing oil from volatilizing and adhering to embodiment 1.

[0021] Figure 2 This is an installation structure diagram of an encoder with a structure for preventing bearing oil from volatilizing and adhering to embodiment 1.

[0022] Figure 3 It is a schematic diagram of the installation of the encoder with the anti-bearing oil volatilization and adhesion structure of Example 1.

[0023] Figure 4 It is a schematic diagram of the connection between the control component and the mounting bracket of Example 1.

[0024] Figure 5 It is a partially enlarged view of the encoder with a structure for preventing bearing oil from volatilizing and adhering to the first embodiment.

[0025] Figure 6 It is a schematic diagram of the structure of the mounting base of Example 1. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the embodiments of the utility model in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the embodiments of the utility model, rather than to limit the embodiments of the utility model. It should also be noted that, for ease of description, only parts related to the embodiments of the utility model are shown in the accompanying drawings, rather than all structures.

[0027] In addition, the terms first, second, third, etc. in the specification and claims are only used for the purpose of describing the same technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor necessarily describing the order or time sequence. The terms are interchangeable where appropriate. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0028] Similarly, the terms "fixed" and "connected" used in the specification and claims should not be construed as limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to a device or system in which device A is directly connected to device B, but means that there is a path between device A and device B, which may be a path including other devices or tools.

[0029] Example 1

[0030] This embodiment provides an encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing oil. Figure 1 This is a schematic diagram of the structure of an encoder with a structure to prevent bearing oil from volatilizing and adhering. Figure 2 This is the installation structure diagram of the encoder with a structure to prevent the volatilization and adhesion of bearing oil. Figure 3 This is the installation diagram of the encoder with a structure to prevent the evaporation of bearing oil. Figure 1-3 , the encoder with the anti-bearing oil volatilization and adhesion structure comprises a mounting base 1, a grating module 2 and a control component 3 for sensing the optical signal of the grating module 2;

[0031] The mounting base 1 is used to be fixed to the rotating shaft 6 of the motor device. It is located above the bearing 7 of the motor device and rotates with the rotating shaft 6 of the motor device. The grating module 2 is arranged on the mounting base 1; the control component 3 is arranged corresponding to the grating module 2;

[0032] At least one first receiving groove 112 is formed on a side of the mounting base 1 facing the bearing 7 of the motor device.

[0033] The present embodiment provides an encoder with a structure for preventing bearing oil from volatilizing and adhering. The mounting base 1 rotates with the rotating shaft 6 of the motor device. The grating module 2 arranged on the mounting base 1 can feedback an optical signal to the control component 3 according to the rotation state of the rotating shaft 6 of the motor device. The first receiving groove 112 is arranged on the side of the mounting base 1 facing the bearing 7 of the motor device. The volatilized bearing oil can be collected by the first receiving groove 112 to prevent it from directly adhering to the mounting base 1 and affecting the signal transmission between the grating module 2 and the control component 3.

[0034] Figure 4 This is a schematic diagram of the connection between the control component and the mounting base. Figure 5This is a partial enlarged view of the encoder with a structure to prevent bearing oil from volatilizing and adhering. Figure 4-5 In this embodiment, the encoder with the anti-bearing oil volatilization and adhesion structure further includes a mounting bracket 5, which is arranged on a housing around the rotating shaft 6 of the motor device, and a control component 3 is arranged on the mounting bracket 5. The control component 3 includes an optical signal processor for receiving and processing the signal of the grating module 2. The mounting bracket 5 is used to be fixed on the housing around the rotating shaft 6 of the motor device and provide support for the optical signal processor.

[0035] See also Figure 4-5 In one embodiment, the mounting base 1 and the mounting bracket 5 are both arranged with the rotating shaft 6 of the motor device as the center; an encoder bracket 9 is arranged on the mounting bracket 5, and the optical signal processor is installed on the encoder bracket 9 and is located above the grating module 2 to receive the optical signal fed back by the grating module 2.

[0036] See also Figure 3 In this embodiment, a drainage gap 4 is formed between the mounting base 1 and the rotating shaft 6 and the bearing 7, and the drainage gap 4 is connected to the first receiving groove 112. The drainage gap formed between the mounting base 1 and the rotating shaft 6 and the bearing 7 is used to guide the volatilized bearing oil to the first receiving groove 112.

[0037] See also Figure 1-3 In this embodiment, the first receiving groove 112 is annular with the rotating shaft 6 as the center. The annular first receiving groove 112 corresponds to the shape of the bearing 7 to receive the bearing oil volatilized from the bearing 7. In one embodiment, the bearing 7 is cylindrical, and the first receiving groove 112 is annular corresponding to the shape of the bearing 7.

[0038] See also Figure 1-3 In this embodiment, the number of the first containing grooves 112 is at least two, and they are concentrically arranged around the rotating shaft 6. A plurality of first containing grooves 112 are arranged to prevent excessive bearing oil from accumulating in a single first containing groove 112.

[0039] See also Figure 1-3 In this embodiment, the mounting base 1 includes an annular mounting plate 11 and a connecting sleeve 13. The connecting sleeve 13 is sleeved and fixed on the rotating shaft 6, and the annular mounting plate 11 is fixed to the outer wall of the connecting sleeve 13. The first accommodating groove 112 is opened on the side of the annular mounting plate 11 facing the bearing 7 of the motor device. The annular mounting plate 11 is firmly connected to the rotating shaft 6 through the connecting sleeve 13. In one embodiment, the annular mounting plate 11 and the connecting sleeve 13 are integrally formed.

[0040] In one embodiment, the mounting base 1 is sleeved on the rotating shaft 6 through a connecting sleeve 13, and the connecting sleeve 13 is fixed to the rotating shaft 6 by screws, so that the mounting base 1 is stably installed and can rotate synchronously with the rotating shaft 6. The mounting bracket 5 of the encoder is used to be installed on the housing 8 of the motor device, and a gap is left between the mounting base 1 and the mounting bracket 5 to avoid friction interference when the mounting base 1 rotates.

[0041] In one embodiment, the grating module 2 includes a grating film; the mounting base 1 also includes an annular glass plate 12 , the glass plate 12 is mounted on a side of the annular mounting plate 11 away from the bearing 7 of the motor device, and the grating film is attached to the glass plate 12 .

[0042] In this embodiment, the mounting bracket 5 is annular, and a second accommodating groove 51 is provided on one side of the mounting bracket 5 facing the mounting base 1. The second accommodating groove 51 is staggered with the first accommodating groove 112 to form a curved accommodating cavity. The first accommodating groove 112 is arranged opposite to the second accommodating groove 51 to form a curved accommodating cavity, which is convenient for accommodating the volatile bearing oil and preventing it from overflowing.

[0043] In this embodiment, the second accommodating groove 51 is annular, which is adapted to the shape of the first accommodating groove 112. The shape of the second accommodating groove 51 is adapted to the shape of the first accommodating groove 112 to match and form a curved accommodating cavity.

[0044] In this embodiment, there are at least two second containing grooves 51 , which are concentrically arranged around the rotating shaft 6 . A plurality of second containing grooves 51 are provided to prevent excessive bearing oil from accumulating in a single second containing groove 51 .

[0045] See also Figure 5-6 In one embodiment, the mounting base 1 is provided with a plurality of first bosses 111, and every two adjacent first bosses 111 form a first receiving groove 112; the mounting bracket 5 is provided with a plurality of second bosses 52, and every two adjacent second bosses 52 form a second receiving groove 51. The first boss 111 extends into the second receiving groove 51, and the second boss 52 extends into the first receiving groove 112, thereby forming a curved receiving cavity.

[0046] Example 2

[0047] The present embodiment provides a motor device, including a housing 8, a rotor, a rotating shaft 6, a bearing 7 and an encoder with a structure for preventing bearing oil from volatilizing and adhering to the housing 8; the rotating shaft 6, the bearing 7 and the encoder are located in the housing 8; the bearing 7 is sleeved on the rotating shaft 6; the mounting base 1 is fixed to the rotating shaft 6 and is located above the bearing 7.

[0048] In the motor device provided in this embodiment, the first accommodating groove 112 and the second accommodating groove 51 provided in the encoder are used to accommodate the volatile bearing oil, thereby preventing the bearing oil from adhering to the grating module 2 on the mounting base 1, so that the optical signal between the grating module 2 and the control component 3 is transmitted normally, accurately reflecting the operating state of the rotating mechanism.

[0049] See also Figure 2-3 The mounting bracket 5 can be mounted on the housing 8 of the device by screw locking, and the mounting base 1 can be mounted on the rotating shaft 6 by screw locking. Through the mounting bracket 5 and the mounting base 1 of the encoder, the encoder can be installed on the formed motor device, which has universality.

[0050] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the claims of the present invention and the scope of equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. An encoder with a structure for preventing bearing oil from volatilizing and adhering, characterized in that: It includes a mounting base, a grating module and a control component for sensing the optical signal of the grating module; The mounting base is used to be fixed to the rotating shaft of the motor device, is located above the bearing of the motor device, and rotates with the rotating shaft of the motor device. The grating module is arranged on the mounting base; the control component is arranged corresponding to the grating module; At least one first accommodating groove is formed on a side of the mounting base facing the bearing of the motor device.

2. The encoder with a bearing oil volatilization and adhesion prevention structure according to claim 1, characterized in that: It also includes a mounting bracket, which is arranged on a shell around the rotating shaft of the motor device. The control component is arranged on the mounting bracket, and the control component includes an optical signal processor for receiving and processing grating module signals.

3. The encoder with a bearing oil volatilization and adhesion prevention structure according to claim 1, characterized in that: A drainage gap is formed between the mounting base, the rotating shaft and the bearing, and the drainage gap is communicated with the first accommodating groove.

4. The encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing according to claim 3, characterized in that: The first accommodating groove is in a ring shape with the rotating shaft as the center.

5. The encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing according to claim 4, characterized in that: The number of the first accommodating grooves is at least two, and the first accommodating grooves are concentrically arranged with the rotating shaft as the center.

6. The encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing according to claim 1, characterized in that: The mounting base includes an annular mounting plate and a connecting sleeve, the connecting sleeve is mounted on and fixed to the rotating shaft, and the annular mounting plate is fixed to the outer wall of the connecting sleeve; the first accommodating groove is opened on the side of the annular mounting plate facing the bearing of the motor device.

7. The encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing according to claim 2, characterized in that: The mounting bracket is annular, and a second accommodating groove is provided on a side of the mounting bracket facing the mounting base. The second accommodating groove and the first accommodating groove are arranged alternately to form a bent accommodating cavity.

8. The encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing according to claim 7, characterized in that: A plurality of first bosses are provided on a side of the mounting base facing the mounting bracket, and every two adjacent first bosses form a first receiving groove; a plurality of second bosses are provided on the mounting bracket, and every two adjacent second bosses form a second receiving groove; wherein, the first boss extends into the second receiving groove, and the second boss extends into the first receiving groove, to form the bent receiving cavity.

9. The encoder with a structure for preventing bearing oil from volatilizing and adhering to the bearing according to claim 8, characterized in that: The number of the second accommodating grooves is at least two, and they are concentrically arranged with the rotating shaft as the center.

10. A motor device, characterized in that: It comprises a housing, a rotating shaft, a bearing and an encoder with a structure for preventing bearing oil from volatilizing and adhering as described in any one of claims 1 to 9; the rotating shaft, the bearing and the encoder are located in the housing; the bearing is sleeved on the rotating shaft; the mounting base is fixed to the rotating shaft and is located above the bearing.

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