Integrated angular displacement sensor

Abstract

The utility model discloses an integrated angular displacement sensor. The motor comprises a rotating shaft, a rotor iron core sleeving one end of the rotating shaft, a stator iron core sleeving the outer side of the rotor iron core, stator insulating sheets arranged on two sides of the stator iron core, a casing surrounding the stator iron core, a total end cover clamped at one end of the casing, and an abutting block arranged at one end of the total end cover and used for abutting one end of the stator iron core, the fixing block is arranged at one end of the casing and is used for abutting against the other end of the stator iron core; wherein a first annular groove is formed in the peripheral side of the abutting block, a second annular groove is formed in the peripheral side of the fixing block, and the first annular groove and the second annular groove are internally coated with epoxy resin coating layers; according to the utility model, the epoxy resin coating layers are coated inside the casing and the total end cover, and the assembling surface of the rotary transformer stator is not coated, so that the excellent electrical insulation performance of the product can be ensured, and the production efficiency and the qualified rate are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of industrial equipment, in particular to an integrated angular displacement sensor. Background Art

[0002] As a key measuring device in the industrial field, the angular displacement sensor plays a vital role in the fields of industrial automation and mechanical control. It can detect the angle change of the rotating object in real time and convert this information into electrical signal output for analysis and processing by the control system. However, although the angular displacement sensor has a wide range of applications in these fields, its electrical insulation performance has always been an important factor restricting its performance improvement. In the design and manufacturing process of the angular displacement sensor in the prior art, the electrical insulation performance is often poor due to reasons such as material selection and process control. When the angular displacement sensor is in a complex electromagnetic environment, the external electromagnetic interference can easily invade the angular displacement sensor and interfere with its normal operation. This interference will not only cause errors in the electrical signal output by the angular displacement sensor, but in severe cases, it may even cause the angular displacement sensor to completely fail and fail to provide accurate measurement data. In the fields of industrial automation and mechanical control, once the measurement accuracy and stability of the angular displacement sensor are affected by external electromagnetic interference, it will have a negative impact on the performance of the entire control system, which may not only lead to a decrease in production efficiency, but also pose a threat to production safety.

[0003] Therefore, it is necessary to provide a technical solution for improving the electrical insulation performance of the angular displacement sensor to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated angular displacement sensor which can effectively solve the above technical problems.

[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0006] An integrated angular displacement sensor, characterized in that it includes a rotating shaft, a rotor core sleeved on one end of the rotating shaft, a stator core sleeved on the outside of the rotor core, stator insulating sheets arranged on both sides of the stator core, a casing wrapped around the stator core, a main end cover clamped on one end of the casing, an abutment block arranged at one end of the main end cover and used to abut against one end of the stator core, and a fixing block arranged at one end of the casing and used to abut against the other end of the stator core; wherein a first annular groove is provided on the circumferential side of the abutment block, a second annular groove is provided on the circumferential side of the fixing block, and an epoxy resin coating layer is coated in the first annular groove and the second annular groove.

[0007] Furthermore, a mounting groove with a first bearing base is provided at one end of the housing close to the fixing block.

[0008] Furthermore, a first deep groove ball bearing is mounted on the first bearing base, and one end of the rotating shaft passes through the mounting groove and is plugged into the first deep groove ball bearing and the first bearing base respectively.

[0009] Furthermore, an opening with a second bearing base is provided in the abutment block, a second deep groove ball bearing is mounted on the second bearing base, and one end of the rotating shaft passes through the opening and is respectively plugged into the second bearing base and the second deep groove ball bearing.

[0010] Furthermore, a left end cover of a bearing for fixing a second deep groove ball bearing is inserted at one end of the rotating shaft.

[0011] Furthermore, a right end cover of a bearing for fixing the first deep groove ball bearing is inserted at the other end of the rotating shaft.

[0012] Furthermore, a right hole retaining ring is provided at one end of the rotating shaft close to the right end cover of the bearing, and a right adjusting washer is provided between the right hole retaining ring and the right end cover of the bearing.

[0013] Furthermore, a left hole retaining ring is sleeved on one end of the rotating shaft close to the left end cover of the bearing, and a left adjusting washer is provided between the left hole retaining ring and the left end cover of the bearing.

[0014] Furthermore, an opening is provided in the first annular groove, and an epoxy resin coating layer is coated in the opening.

[0015] Furthermore, a connection wire is inserted into one end of the stator core, and the connection wire passes through the opening and extends to the outside of the main end cover.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model can ensure that the product has excellent electrical insulation performance and greatly improve production efficiency and qualified rate by adopting a process in which an epoxy resin coating layer is coated on the inside of the casing and the main end cover, and the assembly surface of the angular displacement stator is not coated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 It is an exploded view of the utility model.

[0019] Figure 2 It is a cross-sectional view of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the casing of the utility model.

[0021] Figure 4It is a structural schematic diagram of the general end cover of the utility model.

[0022] Figure 5 It is a top view of the utility model.

[0023] In the figure: 1, retaining ring for right hole; 2, right adjusting washer; 3, right end cover of bearing; 4, first deep groove ball bearing; 5, first bearing base; 6, rotating shaft; 7, rotor core; 8, housing; 9, stator insulating sheet; 10, stator core; 11, connecting wire; 12, left end cover of bearing; 13, left adjusting washer; 14, retaining ring for left hole; 15, main end cover; 16, abutment block; 17, first annular groove; 18, second annular groove; 19, epoxy resin coating layer; 20, mounting groove; 21, opening; 22, opening; 23, fixing block; 41, second deep groove ball bearing; 51, second bearing base. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0025] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] like Figures 1 to 5As shown, an integrated angular displacement sensor includes a rotating shaft 6, a rotor core 7 sleeved on one end of the rotating shaft 6, a stator core 10 sleeved on the outside of the rotor core 7, stator insulating sheets 9 arranged on both sides of the stator core 10, a housing 8 wrapped around the stator core 10, a main end cover 15 clamped on one end of the housing 8, an abutment block 16 arranged at one end of the main end cover 15 and used to abut against one end of the stator core 10, and a fixing block 23 arranged at one end of the housing 8 and used to abut against the other end of the stator core; wherein the circumferential side of the abutment block 16 is provided with a first annular Groove 17, a second annular groove 18 is provided on the circumferential side of the fixing block 23, and the first annular groove 17 and the second annular groove 18 are coated with an epoxy resin coating layer 19; by arranging the epoxy resin coating layer 19 in the first annular groove 17 and the second annular groove 18, the surface of the stator core is not coated with the epoxy resin coating layer, so that when the housing 8 and the main end cover 15 are closely matched to form the external structure of the angular displacement sensor, not only can they form an electrical insulation barrier together, but also can avoid the assembly error of the angular displacement stator caused by the coating, thereby ensuring the accuracy and stability of the assembly.

[0027] There are two stator insulating sheets 9, which are respectively located on both sides of the stator core 10. The stator core 10 is isolated from the casing 8 and the main end cover 15 by the stator insulating sheets 9, which can effectively isolate the electrical connection between the stator core 10 and the casing 8 and the main end cover 15, effectively protect the angular displacement sensor from electrical faults, and ensure the electrical insulation performance of this embodiment.

[0028] An installation groove 20 with a first bearing base 5 is provided at one end of the casing 8 close to the fixed block 23, and a first deep groove ball bearing 4 is mounted on the first bearing base 5. One end of the rotating shaft 6 passes through the installation groove 20 and is respectively plugged with the first deep groove ball bearing 4 and the first bearing base 5. An opening 21 with a second bearing base 51 is provided in the abutment block 16, and a second deep groove ball bearing 41 is mounted on the second bearing base 51. One end of the rotating shaft 6 passes through the opening 21 and is respectively plugged with the second bearing base 51 and the second deep groove ball bearing 41. By providing the first deep groove ball bearing 4 and the second deep groove ball bearing 41, the connection structure among the rotating shaft 6, the casing 8 and the main end cover 15 can be effectively supported and stabilized, thereby ensuring the flexibility and accuracy of the rotation of the rotating shaft 6 and improving the use effect of this embodiment.

[0029] A left end cover 12 for fixing a second deep groove ball bearing 41 is inserted at one end of the rotating shaft 6, and a right end cover 3 for fixing a first deep groove ball bearing 4 is inserted at the other end of the rotating shaft 6. A right hole retaining ring 1 is provided at one end of the rotating shaft 6 close to the right end cover 3 of the bearing, and a right adjustment washer 2 is provided between the right hole retaining ring 1 and the right end cover 3 of the bearing. A left hole retaining ring 14 is sleeved at one end of the rotating shaft 6 close to the left end cover 12 of the bearing, and a left adjustment washer 13 is provided between the left hole retaining ring 14 and the left end cover 12 of the bearing. In the embodiment, the left end cover 12 of the bearing and the right end cover 3 of the bearing are used to fix the connection position of the first deep groove ball bearing 4 and the second deep groove ball bearing 41 in the housing 8 and prevent the rotating shaft 6 from loosening. Through the mutual cooperation between the right hole retaining ring 1 and the right adjustment washer 2, and the left hole retaining ring 14 and the left adjustment washer 13, the user can easily adjust the preload force and position of the first deep groove ball bearing 4 and the second deep groove ball bearing 41 when assembling this embodiment, thereby reducing the assembly difficulty of this embodiment and improving the use accuracy of the angular displacement sensor.

[0030] An opening 22 is provided in the first annular groove 17, and an epoxy resin coating layer 19 is coated in the opening 22. A connection wire 11 is inserted into one end of the stator core 10, and the connection wire 11 passes through the opening 22 and extends to the outside of the main end cover 15. In this embodiment, the electrical insulation performance of this embodiment is further enhanced by coating the epoxy resin coating layer 19 at the opening 22.

[0031] Working principle: The epoxy resin coating layer 19 is coated inside the casing 8 and the main end cover 15, and the surface of the stator core 10 is not coated with the epoxy resin coating layer to form an electrical insulation barrier, which can effectively resist external electromagnetic interference and maintain the stable operation of internal electrical components.

[0032] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An integrated angular displacement sensor, characterized in that: The invention comprises a rotating shaft (6), a rotor core (7) sleeved on one end of the rotating shaft (6), a stator core (10) sleeved on the outside of the rotor core (7), stator insulating sheets (9) arranged on both sides of the stator core (10), a casing (8) wrapped around the stator core (10), a main end cover (15) clamped on one end of the casing (8), an abutment block (16) arranged at one end of the main end cover (15) and used to abut against one end of the stator core (10), and a fixing block (23) arranged at one end of the casing (8) and used to abut against the other end of the stator core (10); wherein a first annular groove (17) is provided on the circumferential side of the abutment block (16), a second annular groove (18) is provided on the circumferential side of the fixing block (23), and an epoxy resin coating layer (19) is coated in the first annular groove (17) and the second annular groove (18).

2. The integrated angular displacement sensor according to claim 1, characterized in that: An end of the housing (8) close to the fixing block (23) is provided with a mounting groove (20) with a first bearing base (5).

3. The integrated angular displacement sensor according to claim 2, characterized in that: The first bearing base (5) is equipped with a first deep groove ball bearing (4), and one end of the rotating shaft (6) passes through the mounting groove (20) and is plugged into the first deep groove ball bearing (4) and the first bearing base (5) respectively.

4. The integrated angular displacement sensor according to claim 3, characterized in that: The abutment block (16) is provided with an opening (21) with a second bearing base (51), the second bearing base (51) is equipped with a second deep groove ball bearing (41), and one end of the rotating shaft (6) passes through the opening (21) and is respectively plugged into the second bearing base (51) and the second deep groove ball bearing (41).

5. The integrated angular displacement sensor according to claim 4, characterized in that: A left end cover (12) for fixing a second deep groove ball bearing (41) is inserted into one end of the rotating shaft (6).

6. The integrated angular displacement sensor according to claim 5, characterized in that: The other end of the rotating shaft (6) is plugged with a right end cover (3) for fixing the first deep groove ball bearing (4).

7. The integrated angular displacement sensor according to claim 6, characterized in that: A right hole retaining ring (1) is provided at one end of the rotating shaft (6) close to the right end cover (3) of the bearing, and a right adjustment washer (2) is provided between the right hole retaining ring (1) and the right end cover (3) of the bearing.

8. The integrated angular displacement sensor according to claim 7, characterized in that: A left hole retaining ring (14) is sleeved on one end of the rotating shaft (6) close to the left end cover (12) of the bearing, and a left adjusting washer (13) is provided between the left hole retaining ring (14) and the left end cover (12) of the bearing.

9. The integrated angular displacement sensor according to claim 1, characterized in that: An opening (22) is provided in the first annular groove (17), and an epoxy resin coating layer (19) is coated in the opening (22).

10. The integrated angular displacement sensor according to claim 9, characterized in that: One end of the stator core (10) is plugged with a connection wire (11), and the connection wire (11) passes through an opening (22) and extends to the outside of the main end cover (15).

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