CN211624170U - Reverse gear assembly of motor tricycle - Google Patents

Abstract

The utility model provides a motor tricycle reverse gear ware assembly, includes the reverse gear ware, be equipped with a erection joint board on the reverse gear ware, the input shaft of reverse gear ware corresponds with the shaft hole that sets up on the erection joint board, the output shaft of reverse gear ware is outwards extended from the reverse gear ware end cover, its characterized in that: the outer circumference of the driving end connecting seat of the universal joint pin is provided with a magnetic field point, a permanent magnet is fixedly mounted on the magnetic field point, a magnetic induction sensor driven by the permanent magnet is mounted on the end cover of the reverse gear, the magnetic signal acquisition end of the magnetic induction sensor corresponds to the permanent magnet and is not in contact with the permanent magnet, so that a rotating speed signal is acquired, and the electric signal output end of the magnetic induction sensor is provided with a signal line for transmitting an electric signal to an instrument panel. It can follow the reverse gear ware and gather the rotational speed signal, neither changes the inner structure of reverse gear ware, does not increase the volume of reverse gear ware again, can also solve the drawback that adopts the worm gear speed counter to exist.

Description

Reverse gear assembly of motor tricycle

Technical Field

The utility model relates to a motor tricycle transmission field, in particular to motor tricycle reverse gear ware assembly.

Background

Generally, the speedometer of a motor tricycle adopts a worm gear mechanism with a mechanical structure, wherein a worm gear is used for connecting with a component for transmitting torque, and a worm is meshed with the worm gear for outputting rotating speed. Because of the meshing relationship between the worm wheel and the worm, the friction generated in the torque transmission process of the speedometer easily causes the wear of the worm wheel and the worm, even causes defects, and the clamping stagnation occurs in the measuring process, thereby causing the failure of the rotating speed measurement. Such a speedometer is usually mounted on the wheel axle, the speedometer housing being fixedly connected to the brake drum of the wheel. And because the speed counter is arranged at the wheel, in the driving process, dust, mud and other impurities easily enter the speed counter and adhere to the speed counter, so that the speed counting accuracy of the speed counter is influenced. If the speedometer of the worm gear mechanism is arranged on the reverse gear of the motor tricycle, the structure of the reverse gear of the common motor tricycle must be modified, the space for installing the worm gear mechanism is arranged on the reverse gear, the design of the reverse gear becomes complicated, the size is relatively increased, the production cost is increased, and the cost reduction of the reverse gear of the motor tricycle is not facilitated. Even in this case, the problem that the worm wheel and the worm are easily abraded by friction generated during torque transmission of the speedometer, and even broken teeth are still not solved.

Disclosure of Invention

The utility model aims at the not enough that prior art corresponds, a motor tricycle reverse gear assembly is provided, it sets up a magnetic field point through the outer circumference at reverse gear output shaft's overhanging end fixed connection cross universal joint's drive end connecting seat, at a fixed installation permanent magnet of magnetic field point, and install a magnetic induction sensor by permanent magnet driven on the reverse gear end cover, the magnetic signal who makes magnetic induction sensor gathers the end and corresponds and contactless with the permanent magnet, can gather tacho signal from the reverse gear, the inner structure of reverse gear neither changes, do not increase reverse gear's volume again, can also solve the drawback that adopts the worm gear meter to exist.

The purpose of the utility model is realized like this: the utility model provides a motor tricycle reverse gear ware assembly, includes the reverse gear ware, be equipped with a erection joint board on the reverse gear ware, the input shaft of reverse gear ware corresponds with the shaft hole that sets up on the erection joint board, the output shaft of reverse gear ware is outwards extended from the reverse gear ware end cover, its characterized in that: the outer circumference of the driving end connecting seat of the universal joint pin is provided with a magnetic field point, a permanent magnet is fixedly mounted on the magnetic field point, a magnetic induction sensor driven by the permanent magnet is mounted on the end cover of the reverse gear, the magnetic signal acquisition end of the magnetic induction sensor corresponds to the permanent magnet and is not in contact with the permanent magnet, so that a rotating speed signal is acquired, and the electric signal output end of the magnetic induction sensor is provided with a signal line for transmitting an electric signal to an instrument panel.

The reverse gear end cover is provided with a support, and the magnetic induction sensor is installed and fixed on the support.

Support one end is passed through screw and reverse gear end cover fixed connection, and the other end is equipped with the mounting hole, magnetic induction sensor inserts in the mounting hole, lies in respectively around the support through two nuts and magnetic induction sensor screw-thread fit, presss from both sides the tight fixing of magnetic induction sensor on the support.

And the extension end of the signal wire is provided with a wiring harness plug.

The permanent magnet is cylindrical, one end of the permanent magnet is fixed in a radial hole formed in an active end connecting seat of the universal joint cross shaft, and the other end of the permanent magnet is exposed out of the circumferential surface of the active end connecting seat.

Compared with the prior art, the utility model discloses contain following beneficial effect:

the outer circumference of an active end connecting seat fixedly connected with a cross shaft universal coupling is provided with a magnetic field point at the outer extension end of an output shaft of a reverse gear assembly of the motor tricycle, a permanent magnet is fixedly installed at the magnetic field point, a magnetic induction sensor driven by the permanent magnet is installed on a reverse gear end cover, the magnetic signal acquisition end of the magnetic induction sensor corresponds to the permanent magnet and is not in contact with the permanent magnet, the magnetic signal acquisition end of the magnetic induction sensor is used for acquiring a rotating speed signal, and a signal line used for transmitting an electric signal to an instrument panel is arranged at the electric signal output end of the magnetic. When the output shaft of the reverse gear assembly of the motor tricycle drives the cross universal coupling to rotate, the permanent magnet arranged at the magnetic field point on the outer circumference of the driving end connecting seat of the cross universal coupling drives the magnetic induction sensor to send out a pulse signal every time the permanent magnet revolves around the output shaft for one circle, and after the instrument panel acquires the pulse signal, the speed and the mileage are displayed on the revolution meter and the mileage meter through the change of pulse frequency. The structure does not change the internal structure of the reverse gear device, does not increase the volume of the reverse gear device, and can also solve the defects existing in the worm gear speed counter. And the speed is accurately counted, the gear counter is not easy to damage, the structure is simple, the installation is convenient, and the production cost of the reverse gear device can be reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an axonometric view of the present invention.

Detailed Description

As shown in fig. 1 to 2, a motor tricycle reverse gear assembly comprises a reverse gear 1, wherein a mounting connection plate 13 is arranged on one side of a housing of the reverse gear 1, and the mounting connection plate 13 can be integrally formed with the housing of the reverse gear 1 or fixedly connected to the housing of the reverse gear through screws. The reverse gear transmission device is characterized in that a shaft hole is formed in the mounting connecting plate 13, an input shaft 14 of the reverse gear device 1 corresponds to the shaft hole in the mounting connecting plate 13, an inner spline hole 14a is formed in the input shaft 14, the reverse gear device 1 is fixedly connected with an engine (not shown) through the mounting connecting plate 13, and an output shaft of the engine is in spline fit with the input shaft 14 of the reverse gear device 1 to transmit power. The output shaft 4 of the reverse gear device 1 extends outwards from the reverse gear end cover 2 and is supported on the bearing seat 3 arranged on the reverse gear end cover 2 through a bearing, the extending end of the output shaft 4 is fixedly connected with a cross universal coupling 6, the cross universal coupling 6 is fixedly connected with the output shaft 4 of the reverse gear device 1 through an active end connecting seat 5, interference fit fixed connection can be adopted, shaft positioning circumferential fixed connection can also be adopted, and power output by the reverse gear device 1 is transmitted through the cross universal coupling 6. The outer circumference of the driving end connecting seat 5 of the universal joint 6 is provided with a magnetic field point, and a permanent magnet 7 is fixedly installed on the magnetic field point. In this embodiment, the permanent magnet 7 is cylindrical, one end of the permanent magnet 7 is fixed in a radial hole formed in the driving end connecting seat 5 of the universal joint 6, and the other end of the permanent magnet is exposed outside the circumferential surface of the driving end connecting seat 5. One end of the cylindrical permanent magnet 7 can be fixed in a radial hole formed in the driving end connecting seat 5 of the universal joint cross 6 in an interference fit mode, or can be fixed in a radial hole formed in the driving end connecting seat 5 of the universal joint cross 6 in a threaded fit mode, and the other end of the cylindrical permanent magnet 7 extends out of the radial hole to be exposed. Install one on the reverse gear end cover 2 by permanent magnet driven magnetic induction sensor 8, magnetic induction sensor 8's magnetic signal gathers the end and corresponds and contactless with permanent magnet 7 for gather rotational speed signal, magnetic induction sensor 8's the signal of telecommunication output end sets up the signal line 11 that is used for transmitting the signal of telecommunication to the panel board, the extension end of signal line sets up pencil plug 12 for it is fixed with the signal interface grafting of panel board.

In order to enable the position of the magnetic induction sensor 8 to correspond to the permanent magnet 7, a bracket 10 is provided on the reverse gear end cover 2, and the magnetic induction sensor 8 is fixed on the bracket 10. Support 10 one end is passed through screw and 2 fixed connection of reverse gear end cover, and the other end is equipped with the mounting hole, magnetic induction sensor 8 inserts in the mounting hole, lies in around support 10 respectively through two nuts 9 with 8 screw-thread fit of magnetic induction sensor, presss from both sides the tight fixing of magnetic induction sensor 8 clamp on support 10, makes magnetic signal acquisition end of magnetic induction sensor 8 correspond permanent magnet 7, and does not contact with permanent magnet 7. The support 10 can adopt an L-shaped support or a T-shaped support, a transverse extension arm of the L-shaped support or the T-shaped support is fixedly connected with the reverse gear end cover 2 through a screw, and a mounting hole is formed in a vertical extension arm of the support 10 and used for mounting the magnetic induction sensor 8. Of course, it is also possible to integrally form a bracket 10 on the reverse gear cover 2, and provide a mounting hole for mounting the magnetic induction sensor 8 at the extending end of the bracket 10, which can also achieve the mounting and fixing of the magnetic induction sensor 8.

The motor tricycle reverse gear assembly is installed on a motor tricycle (not shown), an installation connecting plate is fixedly connected with an engine box body through screws, an internal spline hole in an input shaft of a reverse gear is in spline fit connection with an engine output shaft, a bevel gear arranged at one end of the input shaft is meshed with an advancing gear and a reverse gear which are in sliding fit on an output shaft of the reverse gear, the shifting gear sleeve in spline fit on a shaft section of the output shaft moves axially to be connected with the advancing gear or the reverse gear, the transmission conversion of the advancing gear and the reverse gear power is realized, and an output shaft extending end is fixedly connected with a cross shaft universal coupling to transmit output power. The universal joint pin universal coupling rotates for a circle under the driving of the output shaft, the permanent magnet at the magnetic field point on the outer circumference of the driving end connecting seat of the universal joint pin universal coupling revolves for a circle around the output shaft, the magnetic induction sensor is driven to send out a pulse signal every time the permanent magnet rotates for a circle, and after the instrument panel acquires the pulse signal, the vehicle speed and the mileage are displayed on the revolution meter and the mileage meter through the change of the pulse frequency.

The utility model discloses because magnetic induction sensor and permanent magnet contactless can not produce wearing and tearing, life can prolong, and long-term use is also difficult to damage, makes the rotational speed measurement obtain guaranteeing.

The above is only the preferred embodiment of the present invention, and is not used for limiting the present invention, the technical personnel in the field are not departing from the spirit of the present invention, right the present invention is modified to fall into the protection scope of the present invention.

Claims (5)

1. The utility model provides a motor tricycle reverse gear ware assembly, includes the reverse gear ware, be equipped with a erection joint board on the reverse gear ware, the input shaft of reverse gear ware corresponds with the shaft hole that sets up on the erection joint board, the output shaft of reverse gear ware is outwards extended from the reverse gear ware end cover, its characterized in that: the outer circumference of the driving end connecting seat of the universal joint pin is provided with a magnetic field point, a permanent magnet is fixedly mounted on the magnetic field point, a magnetic induction sensor driven by the permanent magnet is mounted on the end cover of the reverse gear, the magnetic signal acquisition end of the magnetic induction sensor corresponds to the permanent magnet and is not in contact with the permanent magnet, so that a rotating speed signal is acquired, and the electric signal output end of the magnetic induction sensor is provided with a signal line for transmitting an electric signal to an instrument panel.

2. A motor tricycle reverse gear assembly as claimed in claim 1, wherein: the reverse gear end cover is provided with a support, and the magnetic induction sensor is installed and fixed on the support.

3. A motor tricycle reverse gear assembly as claimed in claim 2, wherein: support one end is passed through screw and reverse gear end cover fixed connection, and the other end is equipped with the mounting hole, magnetic induction sensor inserts in the mounting hole, lies in respectively around the support through two nuts and magnetic induction sensor screw-thread fit, presss from both sides the tight fixing of magnetic induction sensor on the support.

4. A motor tricycle reverse gear assembly as claimed in claim 1, wherein: and the extension end of the signal wire is provided with a wiring harness plug.

5. A motor tricycle reverse gear assembly as claimed in claim 1, wherein: the permanent magnet is cylindrical, one end of the permanent magnet is fixed in a radial hole formed in an active end connecting seat of the universal joint cross shaft, and the other end of the permanent magnet is exposed out of the circumferential surface of the active end connecting seat.

Images