Device for measuring turning angle of axle

Abstract

The utility model discloses a device for measuring axle turning angle, which comprises a protective cover (2), an angle sensor (4), a fixed pin (5) and a master pin upper cover (7), the master pin upper cover (7) is fixedly arranged on a wheel edge (9), the protective cover (2) covers the angle sensor (4), the protective cover (2) and the angle sensor (4) are fixedly arranged on the master pin upper cover (7), and the fixed pin (5) is fixed on the master pin upper cover (7). And the angle sensor (4) is fixed with the main pin (8) through the fixing pin (5).

Description

Technical Field

[0001] This utility model relates to a device for measuring the turning angle of a vehicle axle, and belongs to the technical field of devices for measuring the turning angle of a vehicle axle. Background Technology

[0002] With the continuous development of science and technology in the automotive field and the continuous improvement of vehicle intelligence, vehicles cannot function without the signal transmission of various sensors. Among them, the angle signal output by the angle sensor plays an important role in systems such as electric power steering system and steer-by-wire system.

[0003] The existing technical solution involves reserving a support on the axle housing and a bracket on the kingpin rotation shaft. An angle sensor is mounted on the axle housing support and connected to the kingpin via a measuring rod and connecting rod, forming a parallelogram. The measuring rod can rotate around the angle sensor, and is hinged to the connecting rod, which in turn is hinged to the kingpin. The wheel rim rotates around the kingpin. This ensures that the angle at the angle sensor matches the axle angle, achieving the purpose of measuring the vehicle's steering angle. The accuracy of angle measurement in the existing technology depends on whether a parallelogram can be formed. The following three points limit the accuracy of this method: 1. The kingpin has inward and backward tilts, requiring the support on the axle housing to maintain the same angle, which is difficult to achieve due to manufacturing errors. 2. The measuring rod is adjusted via a row of adjustment holes, and the connecting rod is adjusted via a thread, making precise control impossible during adjustment. 3. The angle sensor cannot directly display the axle angle, and the mechanical efficiency of the linkage system leads to inaccurate angle measurement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a device for measuring the turning angle of a vehicle axle, thereby improving the accuracy of angle measurement.

[0005] In a first aspect, this utility model provides a device for measuring the turning angle of a vehicle axle, including a protective cover, an angle sensor, a fixing pin, and a main pin cover. The main pin cover is fixedly disposed on the wheel rim, the protective cover covers the angle sensor, and the protective cover and the angle sensor are fixedly disposed on the main pin cover. The angle sensor is fixed to the main pin by the fixing pin.

[0006] Preferably, the protective cover has an angle sensor groove for engaging the angle sensor.

[0007] Preferably, the angle sensor includes a housing and a rotating shaft, the housing being rotatably connected to the rotating shaft, and the rotating shaft being fixed to the master pin by the fixing pin.

[0008] Preferredly, the protective cover includes several first bolts, and several first bolt through holes with internal threads are opened on the protective cover. The several first bolts fix the protective cover to the main pin cover.

[0009] Preferably, the housing includes several second bolts, and the housing has internally threaded second bolt through holes, and the several second bolts fix the housing to the main pin cover.

[0010] Preferably, the housing has a first housing through hole for accommodating several first bolts, and the first bolt passes through the protective cover and the housing once to be fixedly connected to the main pin cover.

[0011] Preferably, the main pin cover includes several third bolts, and several third bolt through holes with internal threads are opened on the main pin cover. The several third bolts pass through the third bolt through holes to fix the main pin cover on the wheel side.

[0012] The beneficial effects achieved by this utility model are:

[0013] This utility model has a simple installation structure. The rotating shaft of the angle sensor is directly connected to the main pin through a connecting rod. The angle sensor is fixed on the wheel side, and the angle sensor housing can rotate around the main pin. It can accurately transmit the turning angle at the axle, thus improving the accuracy of angle measurement. The angle measurement accuracy is high. There is no need to adjust the position of a row of adjustment holes. It does not require the supports reserved on the axle housing to maintain the same angle. The axle turning angle can be directly displayed in the cab. The space arrangement of this device is compact and easy to see intuitively.

[0014] This utility model aims to improve two main problems of the existing technology: 1. Insufficient accuracy in measuring rotation angle, the mechanical efficiency of the rod system in transmitting rotation angle, and the inability to accurately transmit the rotation angle at the axle; 2. Complex and imprecise adjustment process, the support angle cannot be changed during the adjustment process, and the adjustment rod and connecting rod cannot achieve precise control during the adjustment process. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 These are structural diagrams of some embodiments of this application;

[0017] Figure 2 These are structural diagrams of the angle sensor in some embodiments of this application;

[0018] The meanings of the symbols in the attached diagram are as follows: 1-First bolt; 2-Protective cover; 3-Second bolt; 4-Angle sensor; 5-Fixing pin; 6-Third bolt; 7-Main pin cover; 8-Main pin; 9-Wheel edge. Detailed Implementation

[0019] To facilitate the explanation of the technical solution of this application, some concepts involved in this application will be explained first below.

[0020] It should be noted that if there are directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model, they are only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, if the descriptions in this utility model involve terms such as "first" and "second," they are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" and "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0022] This utility model aims to improve two main problems of the existing technology: 1. Insufficient accuracy in measuring rotation angle, the mechanical efficiency of the rod system in transmitting rotation angle, and the inability to accurately transmit the rotation angle at the axle; 2. Complex and imprecise adjustment process, the support angle cannot be changed during the adjustment process, and the adjustment rod and connecting rod cannot achieve precise control during the adjustment process.

[0023] See Figure 1 This application discloses a device for measuring axle rotation. The rotation shaft of the angle sensor 4 is directly connected to the main pin 8 via a connecting rod. The angle sensor 4 is fixed on the wheel rim 9, so the housing of the angle sensor 4 can rotate around the main pin via the wheel rim to achieve accurate measurement of the axle rotation angle.

[0024] For the specific structure of this device, see [link / details]. Figure 1 This device comprises a protective cover 2, an angle sensor 4, a fixing pin 5, a main pin cover 7, a main pin 8, a wheel rim 9, a first bolt 1, a second bolt 3, and a third bolt 6. A schematic diagram of the angle sensor 4 is shown below. Figure 2The angle sensor 4 consists of a housing 41 and a rotating shaft 42. The housing 41 and the rotating shaft 42 can rotate to record the angle. The protective cover 2 and the housing 41 of the angle sensor 4 are respectively fixed to the master pin cover 7 by the first bolt 1 and the second bolt 3. The master pin cover 7 is fixed to the wheel rim 9 and rotates around the master pin 8. The rotating shaft inside the angle sensor 4 is fixed to the master pin 8 by a fixing pin 5. When the wheel rim 9 rotates around the master pin 8, the housing 41 of the angle sensor 4 also rotates synchronously around the rotating shaft 42, thus measuring the wheel angle.

[0025] The protective cover 2 is cylindrical in shape, and the lower surface of the protective cover 2 has an angle sensor chamber for accommodating the angle sensor 4. The main pin cover 7 is cylindrical in shape, and one end of the main pin cover 7 has a right-angle edge that matches the wheel edge 9.

[0026] There are many models of the angle sensor 4, fixing pin 5, first bolt 1, second bolt 3 and third bolt 6 that can be used in the prior art. Those skilled in the art can select according to actual needs. No examples will be given in this embodiment.

[0027] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0028] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented by the invention. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0029] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A device for measuring the rotation angle of an axle, characterized in that The device comprises a protective cover (2), an angle sensor (4), a fixing pin (5) and a kingpin upper cover (7), the kingpin upper cover (7) is fixedly arranged on a wheel rim (9), the protective cover (2) covers the angle sensor (4), the protective cover (2) and the angle sensor (4) are fixedly arranged on the kingpin upper cover (7), and the angle sensor (4) is fixed with a kingpin (8) through the fixing pin (5).

2. The device for measuring the turning angle of an axle according to claim 1, characterized in that, An angle sensor recess for clamping the angle sensor (4) is arranged on the protective cover (2).

3. The device for measuring the turning angle of an axle according to claim 1, characterized in that, The angle sensor (4) comprises a shell (41) and a rotating shaft (42), the shell (41) is rotationally connected with the rotating shaft (42), and the rotating shaft (42) is fixed with the kingpin (8) through the fixing pin (5).

4. The device for measuring the turning angle of an axle according to claim 3, characterized in that, A plurality of first bolts (1) are arranged, a plurality of first bolt through holes with internal threads are arranged on the protective cover (2), and the plurality of first bolts (1) are arranged on the kingpin upper cover (7).

5. The device for measuring the turning angle of an axle according to claim 3, characterized in that, A plurality of second bolts (3) are arranged, second bolt through holes with internal threads are arranged on the shell (41), and the plurality of second bolts (3) are arranged on the kingpin upper cover (7).

6. The device for measuring the turning angle of an axle according to claim 4, characterized in that, First shell through holes matched with the plurality of first bolts (1) are arranged on the shell (41), and the first bolts (1) are fixedly connected with the kingpin upper cover (7) after passing through the protective cover (2) and the shell (41) once.

7. The device for measuring the turning angle of an axle according to claim 1, characterized in that, A plurality of third bolts (6) are arranged, a plurality of third bolt through holes with internal threads are arranged on the kingpin upper cover (7), and the plurality of third bolts (6) are arranged on the wheel rim (9) through the third bolt through holes.

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