Transmission device for angle sensor

Abstract

The utility model is suitable for the field of detection equipment, and provides a transmission device for an angle sensor, which comprises a to-be-detected shaft and a sensor positioned at one side end of the to-be-detected shaft, the end part of the shaft to be measured is eccentrically provided with a rotating member. The output end of the sensor is provided with a matching piece, and the matching piece is provided with a moving space for the output end of the sensor to move along the radial direction; according to the utility model, the connection between the sensor and the shaft to be measured is changed from the traditional rigid connection to the flexible connection, so that the problems of part abrasion and even damage caused by positioning errors when the sensor and the shaft to be measured are installed are eliminated under the condition of ensuring stable rotation.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a transmission device for an angle sensor. Background Art

[0002] Angle sensors are used to measure precision detection components related to angles. In most cases, they are used to detect the rotation angle of shaft components.

[0003] Among them, during the installation and use of the angle sensor, it is necessary to ensure that its input end is coaxially positioned with the shaft component to ensure the accuracy of the detected value; however, due to the actual assembly process, positioning deviations (centering deviations or angle deviations) are inevitable, and most of the existing angle sensor installation methods are direct assembly methods, that is, the input end of the angle sensor is fixedly connected to the end of the shaft component (groove pin pair connection structure), and the existence of positioning deviations will lead to increased wear between the rotating pairs and even damage to the angle sensor.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a transmission device for an angle sensor, which can replace the connection between the sensor and the shaft to be measured from the traditional "rigid connection" to a "flexible connection", thereby eliminating the problem of wear and even damage of components caused by positioning errors during installation of the two while ensuring stable rotation.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a transmission device for an angle sensor, including a shaft to be measured and a sensor located at one side end thereof; a rotating member is eccentrically provided at the end of the shaft to be measured; a matching member is installed at the output end of the sensor, and a movable space is provided on the matching member for the output end of the sensor to move radially; the rotating member extends into the movable space.

[0007] According to the transmission device for the angle sensor of the utility model, the matching piece is a shift plate which forms a predetermined angle with the axis of the output end of the sensor.

[0008] According to the transmission device for the angle sensor of the utility model, the matching piece is arranged perpendicularly to the axis of the output end of the sensor.

[0009] According to the transmission device for the angle sensor of the utility model, the activity space is a strip groove arranged on the matching piece.

[0010] According to the transmission device for the angle sensor of the utility model, the extension direction of the strip groove is radial to the output end of the sensor.

[0011] According to the transmission device for the angle sensor of the utility model, the end of the shaft to be measured is coaxially fixed with a shaft end baffle; and the rotating member is eccentrically installed on the shaft end baffle.

[0012] The utility model provides a transmission device for an angle sensor, including a shaft to be measured and a sensor located at one side end thereof; the shaft to be measured is a swing arm shaft in this embodiment and is installed on a main bracket, and the sensor is connected to the main bracket through a sensor bracket. A rotating part is eccentrically arranged at the end of the shaft to be measured, and the rotating part is a dial shaft, and the end of the shaft to be measured is coaxially fixed with a shaft end baffle. During the installation process, the shaft end baffle needs to be positioned, and the positioning work is performed based on a positioning structure, which includes a first positioning hole arranged at the end of the shaft to be measured; a second positioning hole is arranged at the center of the shaft end baffle; a positioning part is installed in the first positioning hole and the second positioning hole to coaxially position the two, and the positioning part can be a pin structure; the axis positioning of the shaft to be measured and the shaft end baffle is achieved by the cooperation of the positioning part with the first positioning hole and the second positioning hole. The utility model can replace the connection between the sensor and the shaft to be measured from the traditional "rigid connection" to the "flexible connection", while ensuring stable rotation, eliminating the problem of wear and even damage of parts caused by positioning errors during the installation of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the angle sensor transmission device;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure;

[0015] Figure 3 yes Figure 2 A magnified view of part A;

[0016] Figure 4 This is the positioning diagram when the shaft end baffle is installed;

[0017] Figure 5 yes Figure 3 Structural diagram after removing the sensor, matching parts and fixing parts and installing the positioning parts;

[0018] Figure 6 yes Figure 5 A cross-sectional view of the middle C portion;

[0019] In the figure, 00-main bracket, 1-axis to be measured, 10-first positioning hole, 11-rotating part, 12-matching part, 13-activity space, 2-sensor, 3-axis end baffle, 31-second positioning hole, 32-mounting hole, 4-fixing part, 5-sensor bracket, 6-positioning part. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a transmission device for an angle sensor, which includes a shaft to be measured 1 and a sensor 2 located at one side end thereof; the shaft to be measured 1 is a swing arm shaft in this embodiment and is installed on a main bracket 00, and the sensor 2 is connected to the main bracket 00 through a sensor bracket 5 (the sensor 2 can be fixed to the sensor bracket 5 by bolts).

[0022] A rotating member 11 is eccentrically disposed at the end of the shaft 1 to be tested. Specifically in this example, the rotating member 11 is a shift shaft (a cylindrical shaft-shaped component). Specifically, a shaft end baffle 3 is coaxially fixed to the end of the shaft 1 to be tested.

[0023] See also Figure 4 and Figure 5 During the installation process, the shaft end baffle plate 3 needs to be positioned, and the positioning work is performed based on the positioning structure, which includes a first positioning hole 10 set at the end of the shaft 1 to be measured; a second positioning hole 31 ( Figure 6 As shown); a positioning member 6 is installed in the first positioning hole 10 and the second positioning hole 31 to coaxially position the two, and the positioning member 6 can be a pin structure; through the cooperation of the positioning member 6 with the first positioning hole 10 and the second positioning hole 31, the axial positioning of the shaft 1 to be measured and the shaft end baffle 3 is achieved.

[0024] After the positioning member 6 is installed, one end thereof is clearance fit or transition fit (preferably clearance fit) with the shaft end baffle 3, that is, under the above structure, the shaft end baffle 3 is in a rotatable state; one end is installed on the sensor bracket 5 (corresponding to the mounting hole at the output end of the sensor 2). The shaft end baffle 3 is eccentrically provided with a counterweight member that drives the shaft end baffle 3 to rotate so as to adjust its center of gravity. Specifically in this embodiment, the counterweight member is the above-mentioned rotating member 11 (or shift shaft); the shaft end baffle 3 is in a rotatable state and its center of gravity is close to one side of the rotating member 11 (or shift shaft). After the center of gravity is adjusted (the shaft end baffle 3 rotates at a predetermined angle), the rotating member 11 (or shift shaft) will be located at the lowest end of the shaft end baffle 3 (to achieve vertical correction, the effect of which will be described in detail below). After the shaft end baffle 3 is positioned, the shaft end baffle 3 is fixedly installed with the end of the shaft 1 to be measured through a fixed structure, and finally the positioning member 6 is removed. Specifically, the fixing structure includes a mounting hole 32 provided at the end of the shaft end baffle 3 and a fixing member 4 passing through the mounting hole 32 and fixed to the end of the shaft 1 to be measured. The fixing member 4 can be a fastening bolt; the rotating member 11 is eccentrically mounted on the shaft end baffle 3.

[0025] The output end of the sensor 2 is provided with a matching piece 12, which is a shift plate with a predetermined angle to the axis of the output end of the sensor 2. The matching piece 12 is provided with an activity space 13 for the output end of the sensor 2 to move radially; the rotating piece 11 extends into the activity space 13. The above structure changes the connection between the sensor 2 and the shaft 1 to be measured from the traditional "rigid connection" to a "flexible connection". When the axis of the output shaft of the sensor 2 and the axis of the shaft 1 to be measured cannot correspond (for example, the two are parallel and non-corresponding), the activity space 13 of the shift plate and the pin of the shift shaft will rotate and slide slightly; even if there is a certain angle mismatch or the axis is not centered, the activity space 13 between the groove of the shift plate and the pin of the shift shaft is allowed to have a certain offset. Specifically, in this embodiment, in order to maintain the stability of the transmission between the shift plate and the shift shaft and avoid the consumption of excess external force, the matching piece 12 is arranged perpendicular to the axis of the output end of the sensor 2.

[0026] Among them, during the installation process of the sensor 2, when the above-mentioned rotating part 11 (or the shifting shaft) is located at the lowest end of the shaft end baffle 3 and the verticality correction is achieved, this state is used as the zero point position, and in this state, it is connected to the matching part 12 (shifting plate) connected to the sensor 2 to achieve precise zeroing.

[0027] Preferably, in order to optimize the cooperation between the shift shaft and the activity space 13, only radial activity is allowed, so the activity space 13 of the present application is a strip groove provided on the matching piece 12. Furthermore, the extension direction of the strip groove is radial to the output end of the sensor 2.

[0028] In summary, the utility model provides a transmission device for an angle sensor, including a shaft to be measured and a sensor located at one side end thereof; the shaft to be measured is a swing arm shaft in this embodiment and is installed on a main bracket, and the sensor is connected to the main bracket through a sensor bracket. A rotating part is eccentrically arranged at the end of the shaft to be measured, and the rotating part is a dial shaft, and the end of the shaft to be measured is coaxially fixed with a shaft end baffle. During the installation process, the shaft end baffle needs to be positioned, and the positioning work is performed based on a positioning structure, which includes a first positioning hole arranged at the end of the shaft to be measured; a second positioning hole is arranged at the center of the shaft end baffle; a positioning part is installed in the first positioning hole and the second positioning hole to coaxially position the two, and the positioning part can be a pin structure; the axis positioning of the shaft to be measured and the shaft end baffle is achieved by the cooperation of the positioning part with the first positioning hole and the second positioning hole. The utility model can replace the connection between the sensor and the shaft to be measured from the traditional "rigid connection" to the "flexible connection", while ensuring stable rotation, eliminating the problem of wear and even damage of parts caused by positioning errors during the installation of the two.

[0029] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A transmission device for an angle sensor, characterized in that: It includes a shaft to be measured and a sensor located at one side end thereof; a rotating part is eccentrically arranged at the end of the shaft to be measured; A matching piece is installed at the output end of the sensor, and a movable space is provided on the matching piece for the output end of the sensor to move radially; the rotating piece extends into the movable space.

2. The transmission device for the angle sensor according to claim 1, characterized in that: The matching piece is a dial plate which forms a predetermined angle with the axis of the output end of the sensor.

3. The transmission device for the angle sensor according to claim 2, characterized in that: The matching piece is arranged perpendicularly to the axis of the output end of the sensor.

4. The transmission device for an angle sensor according to any one of claims 1, 2 and 3, characterized in that: The activity space is a strip groove arranged on the matching piece.

5. The transmission device for the angle sensor according to claim 4, characterized in that: The extending direction of the strip groove is the radial direction of the output end of the sensor.

6. The transmission device for the angle sensor according to claim 1, characterized in that: The end of the shaft to be measured is coaxially fixed with a shaft end baffle; The rotating member is eccentrically mounted on the shaft end baffle.

Images