阅读说明：本技术 编码器装置 (Encoder apparatus ) 是由 牛中强 候昭智 于 2020-06-03 设计创作，主要内容包括：本发明属于编码器技术领域,旨在解决现有编码器的抗性、防护等级以及抗电磁干扰方面存在不足的问题。为此目的,本发明提供了一种编码器装置,该编码器装置包括容纳组件、核心编码器、旋转轴、轴承座和轴承组,核心编码器设置在容纳组件内,旋转轴与核心编码器连接,轴承座与容纳组件连接,轴承组设置在旋转轴与轴承座之间。本发明能够从整体上提高核心编码器的抗性、防护等级以及抗电磁干扰能力,极大地保护核心编码器,尤其是对核心编码器的码盘起到保护作用,保证核心编码器的正常工作,提升用户体验。(The invention belongs to the technical field of encoders, and aims to solve the problems of the existing encoder in the aspects of resistance, protection level and electromagnetic interference resistance. To this end, the present invention provides an encoder apparatus, which includes a housing assembly, a core encoder, a rotating shaft, a bearing housing, and a bearing set, wherein the core encoder is disposed in the housing assembly, the rotating shaft is connected to the core encoder, the bearing housing is connected to the housing assembly, and the bearing set is disposed between the rotating shaft and the bearing housing. The invention can improve the resistance, the protection level and the anti-electromagnetic interference capability of the core encoder on the whole, greatly protect the core encoder, particularly protect the code disc of the core encoder, ensure the normal work of the core encoder and improve the user experience.)

1. The utility model provides an encoder device, its characterized in that, encoder device is including holding subassembly, core encoder, rotation axis, bearing frame and bearing group, the core encoder sets up hold in the subassembly, the rotation axis with the core encoder is connected, the bearing frame with it connects to hold the subassembly, bearing group sets up the rotation axis with between the bearing frame.

2. The encoder device of claim 1, wherein the rotating shaft comprises a main shaft and a secondary shaft, the bearing set comprises a first bearing and a second bearing, the main shaft is axially connected with the secondary shaft, the secondary shaft is axially connected with the core encoder, a limiting step is arranged on an outer side wall of the main shaft, the first bearing and the second bearing are respectively arranged on the front side and the rear side of the limiting step in a manner of being attached to the limiting step, and the first bearing and the second bearing are arranged between the main shaft and the bearing seat along the radial direction of the main shaft.

3. The encoder device of claim 2, further comprising an axial snap ring, wherein the front side of the main shaft extends forward to form an elastic snap, and the elastic snap is snapped with the axial snap ring to make the axial snap ring fit with the front side of the containing component or the front side of the main shaft.

4. The encoder device of claim 3, wherein the resilient latch comprises a plurality of resilient latch tongues, the resilient latch tongues are circumferentially arranged on the front side of the main shaft, a gap is formed between every two adjacent resilient latch tongues, and the resilient latch tongues jointly latch the axial snap ring.

5. The encoder device according to claim 4, wherein the elastic latch comprises a hook portion, a fitting portion and a connecting portion, the hook portion is connected with the connecting portion through the fitting portion, the connecting portion is integrally formed with the spindle, the hook portion is fitted with the front end face of the axial snap ring, the fitting portion is fitted with the inner side face of the axial snap ring, and a gap is formed between the connecting portion and the inner side face of the axial snap ring.

6. The encoder device of claim 3, further comprising a seal member disposed between the axial snap ring and the first bearing in an axial direction of the spindle, the seal member disposed between the housing assembly and the spindle in a radial direction of the spindle.

7. The encoder device of claim 2, further comprising an insulating flange disposed between the main shaft and the receiving assembly in a radial direction of the main shaft, a front side of the insulating flange being connected to at least one of the bearing housing and the receiving assembly, and a rear side of the insulating flange being connected to the core encoder.

8. The encoder device of claim 7, wherein the front side of the core encoder is extended forward with a first fixing portion and a second fixing portion, the first fixing portion is connected with the auxiliary shaft, and the second fixing portion is connected with the insulating flange.

9. The encoder device of any one of claims 1 to 8, further comprising a flange seat disposed on an outer wall of the containment assembly, the flange seat having a plug terminal disposed therein.

10. The encoder device of any of claims 1 to 8, further comprising a lifting lug connected to a front side of the receiving assembly.

Technical Field

The invention belongs to the technical field of encoders, and particularly provides an encoder device.

Background

An encoder is a component that converts a motion displacement into an electrical signal. The existing common encoder is not sufficient in general resistance and is very easy to be influenced by external force exerted by the shaft part, namely, the encoder is directly connected with a motor shaft and even can hurt the encoder or the code disc is damaged due to frequent vibration of the shaft part, so that the encoder cannot work normally. Meanwhile, the common encoder has common defects in the aspects of protection level and anti-electromagnetic interference, so that the overall user experience is poor.

Therefore, there is a need in the art for a new encoder apparatus to solve the above problems.

Disclosure of Invention

In order to solve the problems in the prior art, namely the problems of the existing encoder in the aspects of resistance, protection grade and anti-electromagnetic interference, the invention provides an encoder device.

In the preferred technical scheme of above-mentioned encoder device, the rotation axis includes main shaft and countershaft, and the bearing group includes first bearing and second bearing, main shaft and countershaft axial connection, countershaft and core encoder axial connection, and the lateral wall of main shaft is provided with spacing step, and first bearing and second bearing set up both sides around spacing step with spacing step laminating ground respectively to along the radial of main shaft, first bearing and second bearing all set up between main shaft and bearing frame.

In the above-mentioned encoder device's preferred technical scheme, the encoder device still includes the axial snap ring, and the preceding side of main shaft is provided with elasticity buckle to preceding extension, and elasticity buckle and axial snap ring card are put so that the axial snap ring is laminated with the front side of holding the subassembly or the front side of main shaft.

In a preferred technical scheme of the encoder device, the elastic buckle comprises a plurality of elastic clamping tongues, the elastic clamping tongues are arranged on the front side of the main shaft in the circumferential direction, a gap is formed between every two adjacent elastic clamping tongues, and the elastic clamping tongues clamp the axial clamping ring together.

In the preferred technical scheme of the encoder device, the elastic clamping tongue comprises a hook portion, a fitting portion and a connecting portion, the hook portion is connected with the connecting portion through the fitting portion, the connecting portion and the main shaft are integrally formed, the hook portion is fitted with the front end face of the axial clamping ring, the fitting portion is fitted with the inner side face of the axial clamping ring, and a gap is formed between the connecting portion and the inner side face of the axial clamping ring.

In a preferred embodiment of the above encoder device, the encoder device further includes a sealing member, the sealing member is disposed between the axial snap ring and the first bearing along an axial direction of the main shaft, and the sealing member is disposed between the accommodating assembly and the main shaft along a radial direction of the main shaft.

In the preferred technical scheme of above-mentioned encoder device, the encoder device still includes insulating flange, along the radial of main shaft, insulating flange sets up between main shaft and holding the subassembly, and insulating flange's front side is connected with at least one in bearing frame and the holding assembly, and insulating flange's rear side is connected with the core encoder.

In a preferred embodiment of the above encoder device, a first fixing portion and a second fixing portion respectively extend forward from a front side of the core encoder, the first fixing portion is connected to the auxiliary shaft, and the second fixing portion is connected to the insulating flange.

In the preferred technical scheme of the above encoder device, the encoder device further comprises a flange seat, the flange seat is arranged on the outer wall of the accommodating component, and a plug terminal is arranged in the flange seat.

In a preferred embodiment of the above encoder device, the encoder device further includes a lifting lug connected to a front side of the receiving assembly.

The technical scheme includes that the accommodating assembly, the rotating shaft, the bearing seat and the bearing group are combined to integrally improve the resistance, the protection level and the anti-electromagnetic interference capability of the core encoder, namely the accommodating assembly provides peripheral guarantee for the core encoder, the bearing group improves the integral supporting strength, the core encoder can bear a force reduction force after the core encoder is borne by the rotating shaft when the encoder device is influenced by external force or vibrates due to the fact that the external force is transmitted through the rotating shaft, the core encoder is prevented from being directly connected with an external motor shaft, the core encoder is greatly protected, especially, a coded disc of the core encoder is protected, normal work of the core encoder is guaranteed, and user experience is improved.

Furthermore, the clamping device for accommodating the front end of the assembly can be realized through the axial clamping ring and the elastic buckle, the components in the assembly are prevented from falling out of the assembly from the front end, and meanwhile, the encoder device can be conveniently mounted and dismounted through the matching of the axial clamping ring and the elastic buckle.

Furthermore, the axial clamping ring can be clamped from the circumferential direction through the elastic clamping tongues, the axial clamping ring is prevented from moving along the axial direction, a local gap is not generated between the axial clamping ring and the front side of the containing assembly, the compactness of the whole structure is ensured, and the whole structural stability of the encoder device is further improved.

Furthermore, the elastic clamping tongue adopts a combination form of the hook part, the attaching part and the connecting part, so that under the condition of being assembled, the hook part can attach and clamp the front side of the axial clamping ring, the axial limiting effect is achieved, the attaching part can attach and abut against the inner side of the axial clamping ring, and a certain radial limiting effect is achieved. In addition, connecting portion are the clearance with the axial snap ring and set up and make connecting portion can have certain elastic deformation space, guarantee that the elasticity block tongue can carry out the elasticity card to the axial snap ring through elastic deformation and put, when the installation promptly, carry out axial displacement through the front side that the subassembly was held to the axial snap ring hoop and can accomplish all elasticity block tongues fast and put to the card of axial snap ring, improve assembly efficiency, further promote user experience.

Further, can realize sealing to the front side that holds the subassembly through sealing member, prevent that external dirty (for example dust, impurity etc.) and water from entering into the inside that holds the subassembly and cause the pollution to the core encoder from the front side, avoid influencing core encoder's normal work.

Further, can further improve the anti-electromagnetic interference ability of core encoder through insulating flange, insulating flange can further improve the internal connection intensity of encoder device as the adapting unit who holds subassembly and/or bearing frame and core encoder simultaneously, and then improves overall structure's stability, further promotes user experience.

Drawings

FIG. 1 is a first schematic structural diagram of a first embodiment of an encoder apparatus according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a second schematic structural diagram of a first embodiment of an encoder apparatus according to the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a third schematic structural diagram of a first embodiment of an encoder apparatus according to the present invention;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a schematic structural diagram of a second embodiment of an encoder apparatus according to the present invention;

fig. 8 is a cross-sectional view C-C of fig. 7.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "in" or "above", "below", "front", "back", "axial", "radial", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, but do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Based on the problems of the prior encoder pointed out by the background art that the resistance, the protection level and the anti-electromagnetic interference are not enough, the invention provides an encoder device, which aims to improve the resistance, the protection level and the anti-electromagnetic interference capability of the encoder, greatly protect the encoder, especially protect a code disc of the encoder, ensure the normal work of the encoder and improve the user experience.

Specifically, the encoder device comprises an accommodating component, a core encoder, a rotating shaft, a bearing seat and a bearing group, wherein the core encoder is arranged in the accommodating component, the rotating shaft is connected with the core encoder, the bearing seat is connected with the accommodating component, and the bearing group is arranged between the rotating shaft and the bearing seat. The rotating shaft acts as a transmission link for the core encoder to an external rotary drive member (e.g., a motor shaft). The accommodating component can adopt a structure of a single shell, a structure of combining the shell with a rear cover, or a structure of combining the shell, the rear cover and a front cover, and a person skilled in the art can flexibly set the specific structure of the accommodating component according to the actual application condition, and the adjustment and the change of the specific structure of the accommodating component do not limit the invention and are all limited in the protection scope of the invention. The rotating shaft may adopt a single-shaft structure or a double-shaft structure, and a person skilled in the art may flexibly set the specific structure of the rotating shaft according to the specific connection manner of the rotating shaft and the core encoder, for example, the rotating shaft integrally passes through the core encoder, at this time, the rotating shaft may adopt the single-shaft structure, or, for example, the rotating shaft does not integrally pass through the core encoder, at this time, the rotating shaft may adopt the double-shaft structure, of course, the two possible cases of the above example are only two specific structural forms of the rotating shaft, and do not limit the present invention. The bearing set may adopt a supporting structure of a single bearing, or may adopt a supporting structure of multiple bearings, and when the bearing set adopts a supporting structure of multiple bearings, the position of each bearing may be flexibly set, for example, the rotating shaft integrally penetrates through the core encoder, a part of the bearings may be disposed at the front side of the core encoder, another part of the bearings may be disposed at the rear side of the core encoder, or for example, the rotating shaft does not integrally penetrate through the core encoder, and all the bearings may be disposed at the front side of the core encoder. In addition, the limit of the bearing can be realized by arranging a limit step on the rotating shaft and/or the bearing seat, and the rotating shaft can be sleeved with a check ring, so that the technical personnel in the field can flexibly set the limit mode of the bearing in practical application.

The technical solution of the present invention is further illustrated by two examples below.

Example one

The rotating shaft comprises a primary shaft and a secondary shaft, the bearing set comprising a first bearing and a second bearing, the rotating shaft not passing entirely through the core encoder, as shown in figures 1 to 6, that is, the encoder device of the present invention comprises a containing assembly, a core encoder 1, a main shaft 2, a secondary shaft 3, a bearing seat 4, a first bearing 5 and a second bearing 6, wherein the core encoder 1, the secondary shaft 3, the bearing seat 4, the first bearing 5 and the second bearing 6 are all arranged in the containing assembly, at least one part of the main shaft 2 is arranged in the containing assembly, the main shaft 2 is axially connected with the secondary shaft 3, the secondary shaft 3 is axially connected with the core encoder 1, the bearing seat 4 is connected with the containing assembly, the outer side wall of the main shaft 2 is provided with a limit step, the first bearing 5 and the second bearing 6 are respectively arranged on the front side and the rear side of the limit step in a manner of being attached to the limit step, and the first bearing 5 and the second bearing 6 are both disposed between the main shaft 2 and the bearing housing 4 in the radial direction of the main shaft 2. The axial connection between the main shaft 2 and the auxiliary shaft 3 can be that the rear end face of the main shaft 2 is connected with the front end face of the auxiliary shaft 3, or a part of the front end of the auxiliary shaft 3 extends into the rear side of the main shaft 2 and is connected with the main shaft 2, and a person skilled in the art can flexibly set the axial connection mode between the main shaft 2 and the auxiliary shaft 3 in practical application, and preferably, the axis of the main shaft 2 and the axis of the auxiliary shaft 3 are in the same straight line, so as to ensure the connection reliability of each other. Similarly, the axial connection between the secondary shaft 3 and the core encoder 1 may be the connection between the rear end face of the secondary shaft 3 and the front end face of the core encoder 1, or may be the connection between a part of the secondary shaft 3 extending into the core encoder 1 and being connected with the core encoder 1, and those skilled in the art may flexibly set the axial connection between the secondary shaft 3 and the core encoder 1 in practical application, and preferably, the axial line of the secondary shaft 3 and the axial line of the core encoder 1 are in the same straight line, so as to ensure the connection reliability between each other and ensure the smooth operation of the core encoder 1. When the encoder device is influenced by external force or the whole encoder device vibrates, the external force (for example, the external force generated by an external motor shaft) is firstly transmitted to the main shaft 2, namely, the main shaft 2 firstly bears the impact and the vibration of the external force, and the auxiliary shaft 3 bears the force reduction after being shared by the main shaft 2, so that the core encoder 1 is greatly protected, particularly, the code disc of the core encoder 1 is protected from being damaged due to the impact or the vibration of the external force, and the normal use of the core encoder 1 is prevented from being influenced. The containment assembly provides peripheral security for the core encoder 1 while improving its anti-electromagnetic interference capabilities.

In the above, as shown in fig. 4, the limiting step is preferably an annular limiting step 21, the front side of the annular limiting step 21 is attached to the rear side of the first bearing 5, and the rear side of the annular limiting step 21 is attached to the front side of the second bearing 6, so that the first bearing 5 and the second bearing 6 are axially limited by the annular limiting step 21, axial movement of the first bearing 5 and the second bearing 6 is avoided, the support stability of the first bearing 5 and the second bearing 6 is ensured, and the service lives of the first bearing 5 and the second bearing 6 are not affected by abrasion of the inner ring and the outer ring of the first bearing 5 and the second bearing 6. As an alternative embodiment, the limiting step may also adopt a form that a plurality of arc-shaped limiting steps are distributed annularly, that is, the outer side wall of the main shaft 2 is provided with a plurality of arc-shaped limiting steps along the circumferential direction, and an interval is provided between every two adjacent arc-shaped limiting steps, in which case, all the arc-shaped limiting steps are preferably equal in arc length, so as to ensure uniform axial limiting of the first bearing 5 and the second bearing 6, and avoid generating local gaps. The person skilled in the art can flexibly set the specific structure of the limiting step in practical application, and the adjustment and the change of the specific structure of the limiting step do not form the limitation of the present invention, and should be limited within the protection scope of the present invention. In addition, the limiting step is preferably integrated with the main shaft 2, so that one-time mold opening molding is facilitated during production.

In one possible case, as shown in fig. 1 to 6, the containing assembly comprises a casing 7 and a back cover 8 connected, a part of the primary shaft 2 being arranged in the casing 7, a part of the secondary shaft 3 being arranged in the casing 7, another part of the secondary shaft 3 being arranged in the back cover 8, a part of the core encoder 1 being arranged in the casing 7, another part of the core encoder 1 being arranged in the back cover 8, the bearing housing 4, the first bearing 5 and the second bearing 6 being arranged in the casing 7, the bearing housing 4 being connected to the casing 7. The shell 7 and the rear cover 8 may be connected by a screw connection, for example, the shell 7 and the rear cover 8 may be connected by a plurality of bolts arranged annularly, of course, the connection between the shell 7 and the rear cover 8 may also be connected by a snap connection, an adhesive connection or a magnetic adsorption connection, or a combination of the above connection methods, for example, the shell 7 and the rear cover 8 are connected by a screw connection and a snap connection, and those skilled in the art may flexibly set the connection method between the shell 7 and the rear cover 8 in practical application, and the adjustment and the change of the connection method do not limit the present invention, and should be limited within the protection scope of the present invention. Furthermore, as shown in fig. 1, 4 and 5, it is preferable that the outer side wall of the rear cover 8 is provided with a plurality of ribs 81 along its own circumferential direction, and the distance between every two adjacent ribs 81 is equal, so that not only the supporting strength of the rear cover 8 can be improved, but also it can be prevented from being deformed when it is impacted by an external force by the reinforcing effect of the plurality of ribs 81.

Preferably, as shown in fig. 1 to 5, the encoder device further includes an axial snap ring 9, and the front side of the main shaft 2 extends forwards to form an elastic snap, and the elastic snap is snapped with the axial snap ring 9 to make the axial snap ring 9 fit with the front side of the accommodating component. Wherein, the elasticity buckle is preferred to set up as an organic whole with main shaft 2 to be convenient for the die sinking. Elastic buckle can set up to the front side block with axial snap ring 9, can also set up to the inside wall block with axial snap ring 9, so that axial snap ring 9 and the front side laminating of the front side or main shaft 2 that hold the subassembly, axial snap ring 9 can play backstop effect and limiting displacement to the part that holds in the subassembly, avoid holding outside the subassembly is fallen out from the front side that holds the subassembly to the part in the subassembly, also can make and hold especially the part on the main shaft 2 more compact in the subassembly simultaneously. In a possible case, the elastic buckle comprises a plurality of elastic clamping tongues 10, the plurality of elastic clamping tongues 10 are arranged on the front side of the main shaft 2 in the circumferential direction, a gap is formed between every two adjacent elastic clamping tongues 10, and the plurality of elastic clamping tongues 10 jointly clamp the axial clamping ring 9. All the elastic clamping tongues 10 are preferably arranged at equal intervals, so that the continuity and reliability of clamping are guaranteed, and gaps are formed among the elastic clamping tongues 10, so that each elastic clamping tongue 10 can have a certain deformation and fault-tolerant space in the circumferential direction during assembly, and the assembly is guaranteed to be carried out smoothly. During assembly, specifically after components in the accommodating assembly are assembled in the accommodating assembly, the axial clamping ring 9 can be arranged on the front side of the accommodating assembly, then the axial clamping ring 9 moves towards the accommodating assembly, when the axial clamping ring 9 contacts each elastic clamping tongue 10, the elastic clamping tongues 10 deform, then the axial clamping ring 9 continues to move until the axial clamping ring is attached to the front side of the accommodating assembly or the front side of the spindle 2, and all the elastic clamping tongues 10 recover to deform so as to clamp the front side of the axial clamping ring 9, so that the axial clamping ring 9 is installed.

Preferably, in the above description, as shown in fig. 4, the elastic latch 10 includes a hook 101, an attaching portion 102, and a connecting portion 103, the hook 101 is connected to the connecting portion 103 through the attaching portion 102, the connecting portion 103 is integrally formed with the spindle 2, the hook 101 is attached to the front end surface of the axial snap ring 9, the attaching portion 102 is attached to the inner side surface of the axial snap ring 9, and the connecting portion 103 has a gap from the inner side surface of the axial snap ring 9. Under the condition of being assembled, the hook part 101 is attached to the front end face of the axial clamping ring 9, the attaching part 102 is attached to the inner side face of the axial clamping ring 9, so that the axial and radial stable connection and support of the axial clamping ring 9 are guaranteed, the connecting part 103 and the inner side face of the axial clamping ring 9 are provided with a gap, the connecting part 103 can be elastically deformed, and the axial clamping ring 9 is installed. In practical applications, the hook 101, the attaching portion 102 and the connecting portion 103 are preferably all integrally formed, so as to facilitate the mold opening design.

Preferably, as shown in fig. 1 to 5, at least a portion of the front outer side of all the elastic latch tongues 10 is provided with an inclined surface, so that when each elastic latch tongue 10 contacts with the axial snap ring 9, a certain guiding effect is provided for the axial snap ring 9, thereby facilitating accurate alignment, and simultaneously, the elastic latch tongues 10 can be more smoothly deformed, thereby preventing the elastic latch tongues 10 from being broken due to large force or large position deviation during assembly. In a more preferred case, moreover, the axial snap ring 9 is formed with a notch along a part of its circumferential direction, that is, the axial snap ring 9 is a broken-type ring structure having a gap, the upper and lower portions of which can be connected by bolts, through the screwing-in and screwing-out of the bolt, the fine adjustment of the diameter of the inner ring of the axial snap ring 9 can be realized, and through the arrangement, so that the bolt can be screwed out during assembly, the diameter of the inner ring of the axial snap ring 9 is enlarged, the installation is more facilitated, after the installation is finished, the bolt can be screwed in, so that the diameter of the inner ring of the axial snap ring 9 is reduced, the stable clamping and the attaching type coating of the axial snap ring 9 to the main shaft 2 are more facilitated, this structure can be used in conjunction with the previously described elastic snap-fit structure, thereby further facilitating the assembly of the axial snap ring 9, and more choices are provided for the assembly mode, and the use experience of a user is further improved.

Preferably, the encoder device further comprises a sealing member disposed between the axial snap ring 9 and the first bearing 5 in the axial direction of the main shaft 2, and disposed between the housing assembly and the main shaft 2 in the radial direction of the main shaft 2. The sealing member may be a single-layer sealing ring structure or a multi-layer sealing ring structure, for example, as shown in fig. 4, the sealing member employs a radial oil seal 11, thereby preventing leakage of the lubricating oil and preventing external contaminants from entering the inside of the accommodating assembly.

Preferably, as shown in fig. 4 and 6, the encoder apparatus further includes an insulation flange 12, the insulation flange 12 being disposed between the main shaft 2 and the receiving member in a radial direction of the main shaft 2, a front side of the insulation flange 12 being connected to at least one of the bearing housing 4 and the receiving member, and a rear side of the insulation flange 12 being connected to the core encoder 1. Wherein, the insulating flange 12 can further improve the anti-electromagnetic interference ability, the insulating flange 12 can be connected with the bearing seat 4, also can be connected with the containing component, and also can be connected with the bearing seat 4 and the containing component simultaneously, as shown in the figure, taking the containing component including the casing 7 and the rear cover 8 that are connected as an example, the casing 7, the bearing seat 4 and the insulating flange 12 are connected through bolts, of course, the above-mentioned connection mode is not limited to the mode of adopting the screw joint, and other connection modes can also be adopted, and the technical personnel in the art can flexibly set up the specific connection mode of the insulating flange 12 and the bearing seat 4 and/or the containing component in combination with the actual use scene in practical application. In addition, the insulating flange 12 may also be connected to the core encoder 1 by bolts, and other connection methods may also be adopted, and those skilled in the art may flexibly set the specific connection method between the insulating flange 12 and the core encoder 1 in practical application in combination with practical use scenarios. The above-mentioned modifications and variations of the connection modes are not intended to limit the present invention, and should be limited within the scope of the present invention. In a preferred case, a first fixing portion 13 and a second fixing portion 14 extend forward from the front side of the core encoder 1, the first fixing portion 13 being connected to the auxiliary shaft 3, and the second fixing portion 14 being connected to the insulating flange 12. Wherein the second fixing portion 14 may be a frame-shaped structure, for example, the frame-shaped structure may form a slot through which the second fixing portion 14 is connected with the insulating flange 12 by bolts, alternatively, as shown in fig. 6, in practical application, the frame-shaped structure has an upper elongated slot 141 and a lower elongated slot 142, as exemplified by the upper elongated slot 141, a screw hole is respectively provided at both ends of the insulating flange 12 corresponding to the upper elongated slot 141, and the connection of the upper portion of the frame-shaped structure with the insulating flange 12 is realized by two bolts passing through the upper elongated slot 141 and then being connected with the corresponding screw holes (one-to-one correspondence of the screw holes and the bolts), and similarly, the connection form of the lower elongated slot 142 is the same as that of the upper elongated slot 141, and by such arrangement, the second fixing portion 14 is connected with the insulating flange 12 in a rectangular arrangement of four bolts in a direction perpendicular to the axis of the main shaft 2, thereby improving the stability and reliability of the connection. Further, alternatively, the first fixing portion 13 may be a hollow cylindrical structure (the outer peripheral surface thereof may be provided in a stepped shape) extending toward the front end, into which the sub shaft 3 is inserted, and the main shaft 2 and the sub shaft 3 may be connected by a bolt, and by such an arrangement, the coating length of the sub shaft 3 may be extended, and the stability and reliability of the connection may be improved. It should be noted that, in the above description, the structures of the first fixing portion 13 and the second fixing portion 14 are only exemplary, and those skilled in the art can flexibly set the specific structures of the first fixing portion 13 and the second fixing portion 14 in practical applications, and such adjustment and change of the first fixing portion 13 and the second fixing portion 14 do not constitute a limitation to the present invention, and should be limited within the protection scope of the present invention.

Example two

The rotating shaft comprises a main shaft, the bearing set comprises a first bearing and a second bearing, the rotating shaft integrally penetrates through the core encoder, as shown in fig. 7 and 8, that is, the encoder device of the invention comprises a containing assembly, a core encoder 1, a main shaft 2, a bearing seat, a first bearing 5 and a second bearing 6, the bearing seat comprises a first bearing seat 41 and a second bearing seat 42, the containing assembly comprises a front cover 20, a shell 7 and a rear cover 8, the front cover 20 and the rear cover 8 are respectively connected with the front side and the rear side of the shell 7, the core encoder 1 is arranged in the shell 7, the main shaft 2 penetrates through the core encoder 1, the first bearing 5 is sleeved on the main shaft 2 and the front side of the core encoder 1, the main shaft 2 is sleeved with the second bearing 6 at the rear side of the core encoder, the first bearing seat 41 is connected with the front cover 20, the second bearing seat 42 is connected with the shell 7, the first bearing 5 is positioned between the main shaft 2 and the first bearing seat 41, the second bearing 6 is located between the main shaft 2 and the second bearing housing 42, and a shaft sleeve 30 is provided between the main shaft 2 and the core encoder 1.

Preferably, as shown in fig. 1 to 8, the encoder device further includes a flange seat 15, the flange seat 15 is disposed on an outer wall of the receiving assembly, and the insertion terminal 100 is disposed in the flange seat 15. In one possible case, the flange seat 15 is arranged on top of the receiving assembly and the plug terminal 100 is plugged with an external plug device. In addition, the encoder device further comprises a lifting lug 16, the lifting lug 16 is connected to the front side of the accommodating component, and the encoder device can be integrally mounted on other devices through the lifting lug 16.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.