Height-adjustable Ackerman chassis driving wheel speed detection device

Abstract

The utility model discloses a height-adjustable Ackerman chassis driving wheel speed detection device. The height-adjustable Ackerman chassis driving wheel speed detection device comprises a fixed plate, an encoder support, an incremental encoder, a bearing support, a bearing, a coupling, a transmission member and a wheel. The installation and working process comprises the steps that the incremental encoder, the bearing support, the bearing, the coupler and the transmission piece are sequentially installed on the encoder support, a hexagonal groove in the transmission piece is aligned with a hexagonal protrusion in the center of a wheel and then is in interference fit with the hexagonal protrusion, and the height of the fixing plate is adjusted; after the upper surface of the fixing plate is attached to a chassis cross beam, the fixing plate and the encoder support are connected through bolts and nuts, the upper surface of the fixing plate is welded to the chassis cross beam, wheels rotate to drive a transmission part to rotate, an output shaft of the incremental encoder is made to rotate through a coupler, and the incremental encoder detects rotating speed data and sends data to an upper computer. The purposes of accurate positioning, flexible installation and accurate speed measurement are achieved.

Description

Technical Field

[0001] The utility model relates to a wheel speed detection device, in particular to an Ackerman chassis driving wheel speed detection device, belonging to the field of speed measurement. Background Art

[0002] With the continuous advancement of vehicle technology, accurate detection of drive wheel speed has become increasingly important in vehicle control and navigation systems. Especially in Ackerman chassis type vehicles, accurate detection of drive wheel speed is essential for achieving vehicle steering and motion control. However, traditional drive wheel speed detection devices often have problems such as complex installation, bulky structure, poor stability and accuracy, and poor applicability, which seriously restrict their effectiveness in practical applications. In view of the shortcomings of the prior art, the utility model provides a simplified, highly adjustable Ackerman chassis drive wheel speed detection device, which achieves accurate detection of drive wheel speed through the precise combination of components such as a fixed plate, an encoder bracket, and an incremental encoder. Compared with traditional devices, the utility model has the advantages of easy installation, compact structure, stable and reliable, and accurate speed measurement, which improves the performance and controllability of the vehicle and promotes the development of intelligent driving and navigation technology. Summary of the invention

[0003] The utility model provides a highly adjustable Ackerman chassis driving wheel speed detection device, which can accurately and stably detect the chassis driving wheel speed and is beneficial to the automatic control of the chassis.

[0004] In order to solve the above technical problems, the utility model provides a highly adjustable Ackerman chassis driving wheel speed detection device, including a fixing plate, an encoder bracket, an incremental encoder, a bearing support, a bearing, a coupling, a transmission member, and a wheel, characterized in that the horizontal surface of the fixing plate is fixedly connected to the chassis crossbeam by welding, and a through hole is provided on the vertical surface; an encoder bracket mounting hole is provided on the upper side of the encoder bracket, which is fixedly connected to the fixing plate by bolts, and a bearing support mounting hole and an encoder mounting hole are respectively provided on the lower side; a countersunk hole is provided on the incremental encoder, which is fixedly connected to the encoder bracket by bolts. The bearing support is fixedly connected by bolts; the four corners of the bearing support are provided with support through holes, which are fixedly connected to the encoder bracket by bolts; the outer circle of the bearing is interference fit with the inner circle of the bearing support cylinder; the outer circle of the coupling is interference fit with the inner circle of the bearing, the circular hole on one side of the coupling is interference fit with the output shaft of the incremental encoder, and the circular hole on the other side is interference fit with the output shaft of the transmission member; a threaded through hole is provided on the circumference of the coupling, and the output shaft of the incremental encoder and the output shaft of the transmission member are locked by installing a top screw; a hexagonal groove is provided on one side of the transmission member, which is interference fit with the hexagonal protrusion at the center of the wheel.

[0005] As a preferred technical solution of the utility model, four through holes of different heights are provided on the fixing plate, and the encoder bracket installation height can be adjusted by aligning the through holes of different heights with the encoder bracket installation holes on the encoder bracket.

[0006] As a preferred technical solution of the utility model, the rotation of the wheel drives the output shaft of the incremental encoder to rotate through the transmission member and the coupling in turn.

[0007] As a preferred technical solution of the utility model, the bearing support is used to support the coupling to prevent the incremental encoder output shaft and the transmission member output shaft from breaking due to excessive radial force caused by vibration during chassis movement.

[0008] As a preferred technical solution of the utility model, a countersunk hole is provided on the bearing support to prevent the bearing support from interfering with the mounting bolts of the incremental encoder.

[0009] As a preferred technical solution of the utility model, a groove is provided on the cylinder of the bearing support to facilitate the installation of the coupling top screw.

[0010] The beneficial effects achieved by the utility model are as follows: the position of the wheel speed detection device can be adjusted during installation, and can adapt to chassis of different sizes; a bearing support is designed, which supports the coupling without interfering with the encoder mounting bolts, and can prevent the encoder output shaft and the transmission member output shaft from breaking due to excessive radial force due to vibration during the forward movement of the chassis; a transmission member structure is designed, and the wheel motion is transmitted to the encoder only through a transmission member and a coupling, without the need to introduce complex transmission, thus simplifying the overall structure; and rapid and accurate measurement of the wheel speed is achieved by introducing the sensor technology of the incremental encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is an exploded view of the overall structure of the utility model from the main perspective;

[0014] Figure 3 It is an exploded view of the overall structure of the utility model from a secondary perspective;

[0015] Figure 4 This is a schematic diagram of the height adjustment structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the transmission structure of the utility model;

[0017] Figure 6This is a schematic diagram of the bearing support structure of the utility model;

[0018] Figure 7 This is a partial enlarged view of the installation of the bearing support of the utility model;

[0019] Markings in the figure: 1-fixed plate, 2-encoder bracket, 3-incremental encoder, 4-bearing support, 5-bearing, 6-coupling, 7-transmission part, 8-wheel, 21-encoder bracket mounting hole, 22-bearing support mounting hole, 23-encoder mounting hole, 41-support through hole, 42-countersunk hole, 43-slot. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7 The utility model is further described as follows:

[0021] A height-adjustable Ackerman chassis drive wheel speed detection device comprises a fixing plate 1, an encoder bracket 2, an incremental encoder 3, a bearing support 4, a bearing 5, a coupling 6, a transmission member 7, and a wheel 8, wherein the fixing plate 1 is fixedly connected to the chassis crossbeam by welding on the horizontal plane, and a through hole is provided on the vertical plane; an encoder bracket mounting hole 21 is provided on the upper side of the encoder bracket 2, which is fixedly connected to the fixing plate 1 by bolts, and a bearing support mounting hole 22 and an encoder mounting hole 23 are respectively provided on the lower side; a countersunk hole is provided on the incremental encoder 3, which is fixedly connected to the encoder bracket 2 by bolts; The bearing support 4 is provided with support through holes 41 at the four corners, and is fixedly connected to the encoder bracket 2 by bolts; the outer circle of the bearing 5 is interference fit with the inner circle of the cylinder of the bearing support 4; the outer circle of the coupling 6 is interference fit with the inner circle of the bearing 5, the circular hole on one side of the coupling 6 is interference fit with the output shaft of the incremental encoder 3, and the circular hole on the other side is interference fit with the output shaft of the transmission member 7, and the coupling 6 is provided with threaded through holes on the circumference, and the output shaft of the incremental encoder 3 and the output shaft of the transmission member 7 are locked by installing the top screw; a hexagonal groove is provided on one side of the transmission member 7, which is interference fit with the hexagonal protrusion at the center of the wheel 8.

[0022] Furthermore, the fixing plate 1 is provided with four through holes of different heights, and the installation height of the encoder bracket 2 can be adjusted by aligning the through holes of different heights with the encoder bracket installation holes 21 on the encoder bracket 2 .

[0023] Furthermore, the rotation of the wheel 8 drives the output shaft of the incremental encoder 3 to rotate through the transmission member 7 and the coupling 6 in turn.

[0024] Furthermore, the bearing support 4 is used to support the coupling 6 to prevent the output shaft of the incremental encoder 3 and the output shaft of the transmission member 7 from breaking due to excessive radial force.

[0025] Furthermore, the bearing support 4 is provided with a countersunk hole 42 to prevent the bearing support 4 from interfering with the mounting bolts of the incremental encoder 3 .

[0026] Furthermore, a slot 43 is provided on the cylinder of the bearing support 4 to facilitate installation of the top screw of the coupling 6.

[0027] The working method of this embodiment is as follows: the incremental encoder 3, the bearing support 4, the bearing 5, the coupling 6 and the transmission member 7 are installed on the encoder bracket 2 in sequence, the hexagonal groove on the transmission member 7 is aligned with the hexagonal protrusion at the center of the wheel 8 and then interference fit, the height of the fixed plate 1 is adjusted, and when the upper surface of the fixed plate 1 is in contact with the chassis crossbeam, the fixed plate 1 and the encoder bracket 2 are connected with bolts and nuts, and the upper surface of the fixed plate 1 is welded to the chassis crossbeam. The rotation of the wheel 8 drives the transmission member 7 to rotate, and the output shaft of the incremental encoder 3 is rotated through the coupling. The incremental encoder 3 detects the speed data and sends the data to the upper computer, so as to achieve the purpose of precise positioning, flexible installation and accurate speed measurement.

Claims

1. A height-adjustable Ackerman chassis drive wheel speed detection device, comprising a fixing plate (1), an encoder bracket (2), an incremental encoder (3), a bearing support (4), a bearing (5), a coupling (6), a transmission member (7), and a wheel (8), characterized in that: The fixing plate (1) is fixedly connected to the chassis crossbeam on a horizontal surface by welding, and is provided with a through hole on a vertical surface; the encoder bracket (2) is provided with an encoder bracket mounting hole (21) on the upper side and is fixedly connected to the fixing plate (1) by bolts, and is provided with a bearing support mounting hole (22) and an encoder mounting hole (23) on the lower side; the incremental encoder (3) is provided with a countersunk hole and is fixedly connected to the encoder bracket (2) by bolts; the bearing bracket (4) is provided with support through holes (41) at four corners and is fixedly connected to the encoder bracket (2) by bolts; the bearing (5 ) has an interference fit with the inner circle of the cylinder of the bearing support (4); the outer circle of the coupling (6) has an interference fit with the inner circle of the bearing (5); the circular hole on one side of the coupling (6) has an interference fit with the output shaft of the incremental encoder (3), and the circular hole on the other side has an interference fit with the output shaft of the transmission member (7); a threaded through hole is provided on the circumference of the coupling (6), and the output shaft of the incremental encoder (3) and the output shaft of the transmission member (7) are locked by installing a top screw; a hexagonal groove is provided on one side of the transmission member (7), which has an interference fit with the hexagonal protrusion at the center of the wheel (8).

2. The height-adjustable Ackerman chassis drive wheel speed detection device according to claim 1, characterized in that: The fixing plate (1) is provided with four through holes of different heights, and the installation height of the encoder bracket (2) can be adjusted by aligning the through holes of different heights with the encoder bracket installation holes (21) on the encoder bracket (2).

3. The height-adjustable Ackerman chassis drive wheel speed detection device according to claim 1, characterized in that: The wheel (8) rotates, driving the output shaft of the incremental encoder (3) to rotate via the transmission member (7) and the coupling (6).

4. The height-adjustable Ackerman chassis drive wheel speed detection device according to claim 1, characterized in that: The bearing support (4) is used to support the coupling (6) to prevent the output shaft of the incremental encoder (3) and the output shaft of the transmission member (7) from breaking due to excessive radial force caused by vibration during the movement of the chassis.

5. The height-adjustable Ackerman chassis driving wheel speed detection device according to claim 1, characterized in that: The bearing support (4) is provided with a countersunk hole (42) to prevent interference between the bearing support (4) and the mounting bolts of the incremental encoder (3).

6. The height-adjustable Ackerman chassis driving wheel speed detection device according to claim 1, characterized in that: The cylindrical portion of the bearing support (4) is provided with a slot (43) to facilitate installation of the top screw of the coupling (6).

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