阅读说明：本技术 一种基于旋转力矩转变为电信号的轮速检测装置 (Wheel speed detection device based on rotation torque is converted into signal of telecommunication ) 是由 王可怡 戴建国 王程 朱建辉 翟仁 邢振宇 张佳琦 丁志鹏 钮约 付立辉 鞠佳 于 2020-07-06 设计创作，主要内容包括：本发明公开了一种基于旋转力矩转变为电信号的轮速检测装置,包括车桥与车轮,车桥内转动连接有半轴,车轮固定连接于半轴的端部；还包括轮速传递机构、支座及检测机构；所述支座固定连接于车桥上,轮速传递机构的一端抵接于车轮内侧,且轮速传递机构转动连接于支座；所述检测机构包括圆盘、滑动变阻器、轻质杆及重物G,轮速传递机构转动连接于圆盘,且圆盘连接于车桥上；所述滑动变阻器包括导体指针及弧形电阻片,弧形电阻片固定连接于圆盘上,导体指针及轻质杆转动连接于轮速传递机构的一端,且导体指针滑动连接于弧形电阻片,弧形电阻片、导体指针与电源及ECU通过导线连接。本发经济实用、性价比高、结构简单、易于清理、维修方便。(The invention discloses a wheel speed detection device based on conversion of rotation torque into an electric signal, which comprises an axle and wheels, wherein a half shaft is rotationally connected in the axle, and the wheels are fixedly connected to the end part of the half shaft; the device also comprises a wheel speed transmission mechanism, a support and a detection mechanism; the support is fixedly connected to the axle, one end of the wheel speed transmission mechanism abuts against the inner side of the wheel, and the wheel speed transmission mechanism is rotatably connected to the support; the detection mechanism comprises a disc, a slide rheostat, a light rod and a heavy object G, the wheel speed transmission mechanism is rotatably connected to the disc, and the disc is connected to the axle; the slide rheostat comprises a conductor pointer and an arc-shaped resistance disc, the arc-shaped resistance disc is fixedly connected to the disc, the conductor pointer and the light rod are rotatably connected to one end of the wheel speed transmission mechanism, the conductor pointer is connected to the arc-shaped resistance disc in a sliding mode, and the arc-shaped resistance disc, the conductor pointer, the power supply and the ECU are connected through wires. The novel electric heating cooker is economical and practical, high in cost performance, simple in structure, easy to clean and convenient to maintain.)

1. A wheel speed detection device based on conversion of rotation torque into an electric signal comprises an axle (1) and wheels (2), wherein a half shaft (3) is rotationally connected in the axle (1), and the wheels (2) are fixedly connected to the end part of the half shaft (3); the method is characterized in that: the device also comprises a wheel speed transmission mechanism (4), a support (5) and a detection mechanism (6); the support (5) is fixedly connected to the axle (1), one end of the wheel speed transmission mechanism (4) is abutted against the inner side of the wheel (2), and the wheel speed transmission mechanism (4) is rotatably connected to the support (5); the detection mechanism (6) comprises a disc (601), a slide rheostat, a light rod (602) and a heavy object G (603), the wheel speed transmission mechanism (4) is rotatably connected to the disc (601), and the disc (601) is connected to the axle (1); the slide rheostat comprises a conductor pointer (604) and an arc-shaped resistance disc (605), the arc-shaped resistance disc (605) is fixedly connected to a disc (601), the conductor pointer (604) and a light rod (602) are rotatably connected to one end of a wheel speed transmission mechanism (4), a weight G (603) is arranged at the bottom end of the light rod (602), the conductor pointer (604) is slidably connected to the arc-shaped resistance disc (605), and the arc-shaped resistance disc (605) and the conductor pointer (604) are connected with a power supply (7) and an ECU (8) through wires; when the wheel (2) is static, the weight G (603) naturally sags, and the conductor pointer (604) points to the end a of the arc-shaped resistor disc (605); when the wheel (2) rotates, the conductor pointer (604) slides to the end b of the arc-shaped resistor disc (605).

2. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 1, wherein: the wheel speed transmission mechanism (4) comprises a roller (401), a first bevel gear (402), a second bevel gear (403) and a pushing assembly; the roller (401) is fixedly connected to the side part of the first bevel gear (402), and the roller (401) is in contact with the inner side of the wheel (2); the first bevel gear (402) is fixedly connected to a shaft A (404), and the shaft A (404) is rotatably connected to a shaft seat (411) through a first bearing (405); the second bevel gear (403) is meshed with the first bevel gear (402), the second bevel gear (403) is fixedly connected to a shaft B (406), and the shaft B (406) is rotatably connected to the support (5) through a second bearing (410); the pushing assembly pushes the roller (401) to cling to the wheel (2).

3. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 2, wherein: the pushing assembly comprises a pushing block (407) and a spring (408), the pushing block (407) is rotatably connected to the shaft B (406) through a third bearing (412), and the pushing block (407) is axially fixed along the shaft B (406); the spring (408) is sleeved on the outer side of the shaft B (406), and two ends of the spring (408) are respectively abutted against the inner sides of the support (5) and the push block (407); the lateral part of axle bed (411) is fixedly connected with bracing piece (409), and the other end fixed connection of bracing piece (409) is in ejector pad (407).

4. A wheel speed detecting apparatus based on the conversion of a rotational torque into an electric signal as claimed in claim 3, wherein: an annular groove is arranged on the shaft B (406), and an inner ring of the third bearing (412) is embedded in the annular groove.

5. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 2, wherein: the end part of the shaft B (406) is fixedly connected with a fourth bearing (610), a through hole in the disc (601) is in interference fit with an outer ring of the fourth bearing (610), the thickness of the disc (601) is smaller than that of the outer ring of the fourth bearing (610), the bottoms of the disc (601) and the axle (1) are fixedly connected with lug plates (606), and the two lug plates (606) are fixedly connected through fixing bolts.

6. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 5, wherein: the outer ring of the fourth bearing (610) protrudes out of the outer wall of the disc (601) and is provided with two arc-shaped copper sheets (607), the upper end and the lower end of each arc-shaped copper sheet (607) are fixedly connected through a locking bolt (608), threaded holes are formed in the two locking bolts (608), and the conductor pointer (604) and the light rod (602) are fixedly connected into the upper threaded hole and the lower threaded hole through nuts.

7. The wheel speed detecting device based on the conversion of the rotational torque into the electric signal as claimed in claim 6, wherein: one end of the lead is fixedly connected to the arc-shaped copper sheet (607), and the other end of the lead is connected with the power supply (7) and the ECU (8) in sequence and then leads to the b end of the arc-shaped resistance sheet (605) to form a series loop.

8. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 7, wherein: and a safety resistor (9) is connected between the power supply (7) and the arc copper sheet (607).

9. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 7, wherein: the conductor pointer (604) and the light rod (602) are always in the same straight line.

10. The wheel speed detecting apparatus based on the conversion of the rotational torque into the electric signal as claimed in claim 1, wherein: the roller (401) is made of rubber, and a plurality of anti-skidding salient points or a plurality of anti-skidding lines are arranged on the contact surface of the roller (401) and the wheel (2).

Technical Field

The invention relates to the technical field of traffic equipment, in particular to a wheel speed detection device based on the conversion of rotation torque into an electric signal.

Background

In order to ensure the accuracy of a speedometer of an automobile, the method has important significance for accurately measuring the speed of an automobile wheel during rotation, and has important influence on the driving safety, the operation stability and the fuel economy of the automobile.

In the prior art, a wheel speed sensor is commonly used for detecting the wheel speed of a vehicle. The function of the tacho sensor is to detect the speed of the wheel and to transmit a speed signal to a control unit of a safety system such as an anti-lock braking system (ABS) or an electronic stability control system (ESP). The wheel speed sensor is directly related to whether safety parts such as an ABS (anti-lock braking system), a brake braking system, a DSC (differential scanning calorimetry) system and the like can work normally or not. When the wheel speed sensor is damaged or polluted, various problems occur in the system, and the system cannot work normally. The wheel speed sensor is installed on a wheel, a main speed reducer or a transmission and is easy to be polluted and damaged. For example, the wheel speed sensor is easy to lose effectiveness when a sand road and a muddy water road are frequently taken or the wheel speed sensor runs on a long rainy day and a shallow water road surface, and if one wheel speed sensor is replaced, the cost is higher if four wheel speed sensors are replaced completely.

Therefore, it is necessary to provide a wheel speed detecting apparatus based on the conversion of the rotational torque into an electrical signal to solve the above problems.

Disclosure of Invention

The invention aims to provide a wheel speed detection device based on the conversion of rotation torque into an electric signal, which is practical and economical, has high cost performance, simple structure, easy cleaning and convenient maintenance, and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a wheel speed detection device based on conversion of rotation torque into an electric signal comprises an axle and wheels, wherein a half shaft is rotationally connected in the axle, and the wheels are fixedly connected to the end part of the half shaft; the device also comprises a wheel speed transmission mechanism, a support and a detection mechanism; the support is fixedly connected to the axle, one end of the wheel speed transmission mechanism abuts against the inner side of the wheel, and the wheel speed transmission mechanism is rotatably connected to the support; the detection mechanism comprises a disc, a slide rheostat, a light rod and a heavy object G, the wheel speed transmission mechanism is rotatably connected to the disc, and the disc is connected to the axle; the slide rheostat comprises a conductor pointer and an arc resistance disc, the arc resistance disc is fixedly connected to the disc, the conductor pointer and the light rod are rotatably connected to one end of the wheel speed transmission mechanism, the weight G is arranged at the bottom end of the light rod, the conductor pointer is slidably connected to the arc resistance disc, and the arc resistance disc and the conductor pointer are connected with the power supply and the ECU through leads; when the wheel is static, the weight G naturally droops, and the conductor pointer points to the end a of the arc-shaped resistance card; when the wheel rotates, the conductor pointer slides to the end b of the arc-shaped resistor disc.

The invention has the further improvement scheme that the wheel speed transmission mechanism comprises a roller, a first bevel gear, a second bevel gear and a pushing component; the roller is fixedly connected to the side part of the first bevel gear and is in contact with the inner side of the wheel; the first bevel gear is fixedly connected to a shaft A, and the shaft A is rotatably connected to the shaft seat through a first bearing; the second bevel gear is meshed with the first bevel gear and is fixedly connected to a shaft B, and the shaft B is rotatably connected to the support through a second bearing; the pushing assembly pushes the roller to cling to the wheel.

The further improvement scheme of the invention is that the pushing assembly comprises a pushing block and a spring, the pushing block is rotatably connected to the shaft B through a third bearing, and the pushing block is axially fixed along the shaft B; the spring is sleeved on the outer side of the shaft B, and two ends of the spring are respectively abutted against the inner sides of the support and the push block; the lateral part of axle bed fixedly connected with bracing piece, the other end fixed connection of bracing piece is in the ejector pad.

In a further improvement of the present invention, an annular groove is provided on the shaft B, and an inner ring of the third bearing is embedded in the annular groove.

The invention has the further improvement scheme that the end part of the shaft B is fixedly connected with a fourth bearing, a through hole in the disc is in interference fit with the outer ring of the fourth bearing, the thickness of the disc is smaller than the size of the outer ring of the fourth bearing, lug plates are fixedly connected to the bottom of the disc and the axle, and the two lug plates are fixedly connected through a fixing bolt.

The invention has the further improvement scheme that the outer ring of the fourth bearing protrudes out of the outer wall of the disc and is provided with two arc-shaped copper sheets, the upper end and the lower end of each arc-shaped copper sheet are fixedly connected through locking bolts, both the two locking bolts are provided with threaded holes, and the conductor pointer and the light rod are fixedly connected into the upper threaded hole and the lower threaded hole through nuts.

The invention has the further improvement scheme that one end of the lead is fixedly connected to the arc-shaped copper sheet, and the other end of the lead is connected with the power supply and the ECU in sequence and then leads to the b end of the arc-shaped resistance sheet to form a series loop.

The invention has the further improvement scheme that a safety resistor is connected between the power supply and the arc copper sheet.

In a further development of the invention, the conductor pointer is always in line with the lightweight rod.

The invention has the further improvement scheme that the roller is made of rubber, and a plurality of anti-skid salient points or a plurality of anti-skid lines are arranged on the contact surface of the roller and the wheel.

The invention has the beneficial effects that:

firstly, the wheel speed detection device based on the conversion of the rotation torque into the electric signal is practical and economical, high in cost performance, simple in structure, easy to clean and convenient to maintain, and is suitable for low-grade automobiles such as the old mobility scooter and the like.

Secondly, in the wheel speed detection device based on the conversion of the rotation torque into the electric signal, the wheel speed transmission mechanism adopts the pushing component to push the roller to be tightly attached to the wheel, so that the gap between the roller and the wheel is prevented.

Thirdly, the wheel speed detecting device based on the conversion of the rotation torque into the electric signal of the invention is provided with an annular groove on the shaft B, and the inner ring of the third bearing is embedded in the annular groove, thereby preventing the push block from axially moving on the shaft B.

Fourthly, according to the wheel speed detection device based on the conversion of the rotation torque into the electric signal, the thickness of the disc is smaller than that of the outer ring of the second bearing, and the installation of the arc-shaped copper sheet can be facilitated.

Fifth, according to the wheel speed detection device based on the conversion of the rotation torque into the electric signal, a safety resistor is connected between the power supply and the arc-shaped copper sheet, so that the working safety of the whole detection device is ensured.

Sixth, according to the wheel speed detecting device of the present invention, the roller is made of rubber, which can reduce wear of the roller and the wheel.

Seventh, according to the wheel speed detecting device of the present invention, the wheel is provided with a plurality of anti-slip protrusions or a plurality of anti-slip stripes, thereby preventing the wheel from slipping and ensuring the accuracy of wheel speed detection.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the disc structure of the present invention.

Fig. 3 is a partially enlarged view of the present invention.

In the figure: 1-axle, 2-wheel, 3-half axle, 4-wheel speed transmission mechanism, 401-roller, 402-first bevel gear, 403-second bevel gear, 404-axle A, 405-first bearing, 406-axle B, 407-push block, 408-spring, 409-support rod, 410-second bearing, 411-axle seat, 412-third bearing, 5-support, 6-detection mechanism, 601-disk, 602-light rod, 603-weight G, 604-conductor pointer, 605-arc resistance sheet, 606-lug plate, 607-arc copper sheet, 608-locking bolt, 610-fourth bearing, 7-power supply, 8-ECU, 9-safety resistance.

Detailed Description

The invention is further elucidated with reference to the drawings and the embodiments.