Rotary transformer convenient for zero setting by using automatic equipment

Abstract

The utility model discloses a rotary transformer convenient to zero by using automatic equipment, which comprises a motor end cover, a rotary transformer stator assembly, a rotary transformer stator assembly pressing plate, a fastening bolt, a rotary transformer stator coil, a rotary transformer signal interface and a rotary transformer stator iron core, the rotary transformer stator iron core is arranged on the rotary transformer stator coil and is fixedly sleeved with the rotary transformer stator coil, and the rotary transformer stator coil and the rotary stator iron core are both of a circular structure. The beneficial effects of the utility model are that the current angle of the rotary transformer is displayed in real time through related zero position adjusting equipment, an operator touches the stator core part of the rotary transformer by hand and slightly rotates left and right to adjust the angle until the zero position of the rotary transformer is aligned with the zero position of the motor, after alignment, the fastening bolt is tightened, the equipment verifies the angle value again, and if the zero position is aligned, the angle value is adjusted. Otherwise, zero setting needs to be carried out again.

Description

Technical Field

[0001] The utility model relates to the technical field of zero-adjusting resolvers, in particular to a resolver that is convenient for zero-adjusting using automatic equipment. Background Art

[0002] The adjustment of the zero position of a resolver (abbreviated as resolver zero adjustment) is also known as zero position angle calibration, motor angle marking, resolver calibration, etc. Although the names are different, the content and functions are the same, that is, to know the angular deviation between the zero position of the resolver and the zero position of the motor, and adjust the angular position of the resolver stator to align it with the zero position of the motor, so as to ensure the accuracy and efficiency of motor control.

[0003] In the current industry, the zero-adjusting process in the production of motors is generally manual operation, which is rather cumbersome and prone to quality problems such as missed adjustment and incorrect adjustment. For example, in the methods described in patents CN109921574A, CN113328670B, CN116633098A, etc., the zero-position adjustment steps are still manual operations, only adding several devices for assistance. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a resolver that is convenient for zero-adjusting using automatic equipment. Through relevant zero-position adjustment equipment, the current angle of the resolver is displayed in real time. The operator touches the stator iron core part of the resolver with his hand and slightly rotates it left and right to adjust the angle until the resolver zero position is aligned with the motor zero position. After alignment, the fastening bolt is tightened, and the equipment checks the angle value again.

[0005] The purpose of the utility model is achieved by the following technical solutions: A resolver that is convenient for zero-adjusting using automatic equipment, including a motor end cover, a resolver stator assembly, a resolver stator assembly pressing plate, fastening bolts, a resolver stator coil, a resolver signal interface, and a resolver stator iron core. The resolver stator iron core is arranged on the resolver stator coil and is sleeved and fixed, and both the resolver stator coil and the rotating stator iron core are circular structures;

[0006] In the resolver for facilitating the zero adjustment of an automatic device of the present utility model, the resolver signal interface is arranged on the resolver stator core and the resolver stator coil, and arc-shaped protrusions I and II are arranged on the side wall of the resolver stator core, and the arc-shaped protrusions I and II are arranged oppositely. Zero adjustment positioning holes are arranged on both the arc-shaped protrusion I and the arc-shaped protrusion II. A zero adjustment mechanism is arranged on the zero adjustment positioning holes. The zero adjustment mechanism includes a servo motor rotation system and a transverse rotating rod arranged at the end of the servo motor rotation system. Vertical rods I and II are respectively arranged at both ends of the transverse rotating rod. The vertical rod I and the vertical rod II are respectively inserted into the zero adjustment positioning holes on the arc-shaped protrusion I and the arc-shaped protrusion II. When the servo motor rotation system drives the zero adjustment mechanism to rotate, the zero adjustment mechanism drives the resolver stator assembly to rotate.

[0007] In the resolver for facilitating the zero adjustment of an automatic device of the present utility model, the resolver stator assembly is arranged at the motor end cover and is in loose fit. After the resolver stator assembly is installed in the installation position, the resolver stator assembly pressing plate and the fastening bolts are placed.

[0008] In the resolver for facilitating the zero adjustment of an automatic device of the present utility model, the resolver stator assembly is arranged in the middle of the motor end cover.

[0009] The present utility model has the following advantages:

[0010] 1. A zero adjustment positioning hole structure is added to the outside of the resolver stator core of the present utility model. When the device is automatically zero-adjusted, the zero adjustment mechanism of the device can be inserted into the zero adjustment positioning hole through a pin shaft structure. The zero adjustment device sends the angle to be adjusted to the servo motor rotation system in the zero adjustment mechanism. The servo motor rotation system drives the zero adjustment mechanism to rotate, and the zero adjustment mechanism drives the resolver stator assembly to rotate. Since the angle control of the servo motor is accurate and rapid, the zero adjustment efficiency can be effectively improved. At the same time, the resolver signal interface can effectively perform rotational zero adjustment.

[0011] 2. The resolver structure of the present utility model enables the resolver to perform zero adjustment work through an automated device, avoiding quality hazards caused by manual zero adjustment.

[0012] 3. An adjustment structure is designed on the resolver body of the present utility model, which can be matched according to the installation position or the device scheme to achieve the purpose of automatically zero-adjusting the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the resolver stator assembly pressing plate in the present utility model;

[0015] Figure 3 This is a schematic structural diagram of the resolver stator core in the present utility model;

[0016] Figure 4 This is a schematic structural diagram of the zero-adjusting positioning hole in the present utility model.

[0017] In the figure, 1 is the motor end cover; 2 is the resolver stator assembly; 3 is the resolver stator assembly pressing plate; 4 is the fastening bolt; 5 is the resolver stator coil; 6 is the resolver signal interface; 7 is the resolver stator core; 8 is the zero-adjusting positioning hole; 9 is the servo motor rotation system; 10 is the zero-adjusting mechanism. Specific embodiments

[0018] The following further describes the present utility model in conjunction with the accompanying drawings. The protection scope of the present utility model is not limited to the following:

[0019] As Figures 1 to 4 shown, a resolver facilitating zero adjustment of an automatic device includes a motor end cover 1, a resolver stator assembly 2, a resolver stator assembly pressing plate 3, a fastening bolt 4, a resolver stator coil 5, a resolver signal interface 6, and a resolver stator core 7. The resolver signal interface 6 is connected to a display. The resolver stator core 7 is disposed on the resolver stator coil 5 and is sleeved and fixed. Both the resolver stator coil 5 and the rotating stator core 7 are circular structures;

[0020] In this embodiment, the resolver signal interface 6 is disposed on the resolver stator core 7 and the resolver stator coil 5. An arc-shaped protrusion one and an arc-shaped protrusion two are provided on the side wall of the resolver stator core 7. The arc-shaped protrusion one and the arc-shaped protrusion two are oppositely disposed. Zero-adjusting positioning holes 8 are provided on both the arc-shaped protrusion one and the arc-shaped protrusion two. A zero-adjusting mechanism 10 is provided on the zero-adjusting positioning holes 8. The zero-adjusting mechanism 10 includes a servo motor rotation system 9 and a horizontal rotating rod disposed at the end of the servo motor rotation system 9. Vertical rods one and two are respectively provided at both ends of the horizontal rotating rod. The vertical rod one and the vertical rod two are respectively inserted into the zero-adjusting positioning holes 8 on the arc-shaped protrusion one and the arc-shaped protrusion two. When the servo motor rotation system 9 drives the zero-adjusting mechanism 10 to rotate, the zero-adjusting mechanism 10 drives the resolver stator assembly 2 to rotate.

[0021] In this embodiment, the resolver stator assembly 2 is disposed at the motor end cover 1 and is in loose fit. After the resolver stator assembly 2 is installed in the installation position, the resolver stator assembly pressing plate 3 and the fastening bolt 4 are then placed.

[0022] In this embodiment, the resolver stator assembly 2 is disposed in the middle of the motor end cover 1.

[0023] The working principle of the present utility model is as follows: A zero-adjustment positioning hole 8 structure is added outside the stator core 7 of the resolver. When the device automatically performs zero adjustment, the zero-adjustment mechanism 10 of the device can be inserted into the zero-adjustment positioning hole 8 through a pin shaft structure. The zero-adjustment device sends the angle to be adjusted to the servo motor rotation system 9 in the zero-adjustment mechanism. The model of the zero-adjustment device is CYYS-RX01. The servo motor rotation system 9 drives the zero-adjustment mechanism to rotate, and the zero-adjustment mechanism 10 drives the resolver stator assembly 2 to rotate. Since the angle control of the servo motor rotation system 9 is accurate and rapid, the zero-adjustment efficiency can be effectively improved.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A resolver facilitating the zero adjustment of an automatic device, characterized in that: It includes a motor end cover, a resolver stator assembly, a resolver stator assembly pressing plate, fastening bolts, a resolver stator coil, a resolver signal interface, and a resolver stator core. The resolver stator core is disposed on the resolver stator coil and is sleeved and fixed thereon. Both the resolver stator coil and the resolver stator core are circular structures. The resolver signal interface is disposed on the resolver stator core and the resolver stator coil. An arc-shaped protrusion I and an arc-shaped protrusion II are provided on the side wall of the resolver stator core. The arc-shaped protrusion I and the arc-shaped protrusion II are oppositely arranged. Zero-adjustment positioning holes are provided on both the arc-shaped protrusion I and the arc-shaped protrusion II. A zero-adjustment mechanism is provided on the zero-adjustment positioning holes. The zero-adjustment mechanism includes a servo motor rotation system and a transverse rotating rod disposed at the end of the servo motor rotation system. Vertical rods I and II are respectively provided at both ends of the transverse rotating rod. The vertical rod I and the vertical rod II are respectively inserted into the zero-adjustment positioning holes on the arc-shaped protrusion I and the arc-shaped protrusion II. When the servo motor rotation system drives the zero-adjustment mechanism to rotate, the zero-adjustment mechanism drives the resolver stator assembly to rotate.

2. A resolver for facilitating zero adjustment of an automatic device according to claim 1, characterized in that: The resolver stator assembly is disposed at the motor end cover and is in loose fit. After the resolver stator assembly is installed in the installation position, the resolver stator assembly pressing plate and the fastening bolts are then placed.

3. A resolver for facilitating zero adjustment of an automatic device according to claim 2, characterized in that: The resolver stator assembly is disposed in the middle of the motor end cover.

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