CN215296136U

CN215296136U - AMT actuating mechanism position detection device

Info

Publication number: CN215296136U
Application number: CN202120704004.3U
Authority: CN
Inventors: 李磊; 吕小科; 郭亚东; 王伟
Original assignee: Suzhou Lvkon Transmission S&T Co Ltd
Current assignee: Suzhou Lvkon Transmission S&T Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-24
Anticipated expiration: 2031-04-07

Abstract

The utility model relates to a AMT actuating mechanism position detection device, including installing sensor detecting element outside AMT actuating mechanism casing and setting up the magnet at the main shaft tip of AMT actuating mechanism, the magnet rotates along with the main shaft, sensor detecting element include with magnet complex magnetic sensor, magnetic sensor with the centre of a circle of magnet use the main shaft sets up as the center is concentric, leave the space between magnetic sensor and the magnet, the space is not more than the magnetism intensity range of feeling of magnet. The utility model discloses a magnetic sensing's detection mode introduces magnetic sensor and magnet, installs the magnet on AMT actuating mechanism's main shaft to make the magnet rotate along with AMT actuating mechanism's main shaft, produce the transform in magnetic field at the pivoted in-process, thereby acquire main shaft pivoted angular position information through the transform in magnetic sensor detection magnetic field, realized the accurate feedback to the actuating mechanism position, and promote the uniformity of AMT actuating mechanism product through angular position information.

Description

AMT actuating mechanism position detection device

Technical Field

The utility model belongs to the technical field of AMT actuating mechanism detects technique and specifically relates to indicate an AMT actuating mechanism position detection device.

Background

AMT is an abbreviation for Automated Mechanical Transmission, with the Chinese name: an electric control mechanical type automatic gearbox is improved on the basis of a traditional manual gear type speed changer; it combines the advantages of AT (automatic) and MT (manual) into one mechanical-electrical-hydraulic integrated automatic transmission; the AMT has the advantages of automatic speed change of the hydraulic automatic speed changer, and keeps the advantages of high efficiency, low cost, simple structure and easy manufacture of the original manual speed changer gear-driven AMT. The mechanical transmission is modified on the existing mechanical transmission, most of the original assembly components are reserved, only the gear shifting rod part of a manual operation system is changed, the production inheritance is good, and the modification investment cost is low.

The clutch actuating mechanism and the gear selecting and shifting mechanism in the AMT actuating mechanism are used as important components of an electric control mechanical automatic transmission and play a role in lifting weight in the electric control mechanical transmission. For a long time, the control of the clutch and the gear selection and shifting becomes the key point of the electric control mechanical gearbox, and the control of the clutch and the gear selection and shifting directly influences the gear shifting quality of the whole vehicle, so that the running time of the executing mechanism of the clutch and the gear selection and shifting is required to be fast, and the executing mechanism can reliably work for a long time without failure in the service life of the vehicle.

Therefore, there is a need for a detection device capable of detecting the position information of the AMT actuator and improving the consistency of the AMT actuator product when the clutch and the gear selecting and shifting actuator are working.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that overcome the defect that can't acquire AMT actuating mechanism positional information among the prior art at the AMT actuating mechanism during operation, provide an AMT actuating mechanism position detection device, can real-time detection AMT actuating mechanism's positional information to promote the uniformity of AMT actuating mechanism product.

In order to solve the technical problem, the utility model provides an AMT actuating mechanism position detection device, including installing sensor detecting element outside the AMT actuating mechanism casing and the magnet of setting at the main shaft tip of AMT actuating mechanism, the magnet rotates along with the main shaft, sensor detecting element include with magnet complex magnetic sensor, magnetic sensor with the magnet uses the centre of a circle of main shaft to set up as the center is concentric, leave the space between magnetic sensor and the magnet, the space is not more than the magnetic strength range of feeling of magnet.

In an embodiment of the present invention, when the AMT actuator works, the magnet rotates along with the spindle to generate a magnetic field change, and the magnetic sensor senses the angular position information of the spindle according to the change of the magnetic field of the magnet.

The utility model discloses an embodiment, sensor detecting element still includes circuit board and sensor contact pin, magnetic sensor and sensor contact pin all weld in on the circuit board, through circuit board and sensor contact pin, will the signal output that magnetic sensor detected.

In an embodiment of the present invention, the initial position of the magnetic sensor can be written in by the sensor pin.

In an embodiment of the present invention, the sensor detecting unit further includes a sensor housing for mounting the magnetic sensor and the circuit board, and the sensor housing is mounted outside the AMT actuator housing.

In an embodiment of the present invention, a sealing ring is disposed between the sensor housing and the AMT actuator housing.

In an embodiment of the present invention, two positioning spigots symmetrically disposed about the spindle are disposed in the sensor housing.

In an embodiment of the present invention, the spindle is mounted on the AMT actuator housing through a bearing.

In one embodiment of the present invention, the magnet is mounted at an end of the main shaft through a magnetism isolating sleeve.

In an embodiment of the present invention, the magnetic sensor is a hall element.

Compared with the prior art, the technical scheme of the utility model have following advantage:

AMT actuating mechanism position detection device, adopt the detection mode of magnetism sensing, introduce magnetic sensor and magnet, install the magnet on AMT actuating mechanism's main shaft to make the magnet rotate along with AMT actuating mechanism's main shaft, produce the transform in magnetic field at the pivoted in-process, thereby obtain main shaft pivoted angular position information through the transform in magnetic sensor detection magnetic field, realized the accurate feedback to the actuating mechanism position, and promote the uniformity of AMT actuating mechanism product through angular position information.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic structural diagram of the AMT actuator position detection device of the present invention.

The specification reference numbers indicate: 1. an AMT actuator housing; 2. a seal ring; 3. a circuit board; 4. a magnetic sensor; 5. a sensor housing; 6. a sensor pin is inserted; 7. a magnet; 8. a magnetic insulation sleeve; 9. a bearing; 10. a main shaft.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1, the utility model discloses a AMT actuating mechanism position detection device, including installing sensor detecting element outside AMT actuating mechanism casing 1 and setting up magnet 7 at the main shaft 10 tip of AMT actuating mechanism, magnet 7 rotates along with main shaft 10, sensor detecting element include with magnet 7 complex magnetic sensor 1, magnetic sensor 1 with magnet 7 uses the centre of a circle of main shaft 10 to set up as the center is concentric, leave the space between magnetic sensor 1 and the magnet 7, the space is not more than the magnetic strength scope of magnet 7 works as AMT actuating mechanism during operation, magnet 7 rotates along with main shaft 10 to produce magnetic field variation, magnetic sensor 4 perceives the angular position information of main shaft 10 according to the change in magnet 7 magnetic field, has realized the accurate feedback to the actuating mechanism position.

Specifically, the magnetic sensor 4 in the present embodiment is a hall element which is a semiconductor using a hall effect, and the hall effect is a physical phenomenon in which a lateral potential difference is generated when a magnetic field acts on carriers in a current-carrying metal conductor or a semiconductor. When a current is passed through the metal foil, a lateral potential difference occurs between the two sides of the metal foil if a magnetic field is applied in a direction perpendicular to the current. The hall effect is more pronounced in semiconductors than in metal foils, whereas ferromagnetic metals exhibit a very strong hall effect below the curie temperature.

A plurality of sensors can be designed and manufactured by utilizing the Hall effect, and the basic relation of the Hall potential difference UH is as follows:

UH＝RHIB/d；

RH＝1/nq

wherein RH-Hall coefficient; n-the number of carriers or free electrons per unit volume; q-the electronic charge; i-the current passed; b-magnetic induction perpendicular to I; d-the thickness of the conductor.

If the switches, which integrate hall elements, are arranged regularly at predetermined positions on the object, the pulse signal can be measured from the measuring circuit when the permanent magnet mounted on the moving object passes over it. The displacement of the moving object can be sensed according to the pulse signal sequence. If the number of pulses emitted in unit time is measured, the movement speed can be determined, and the embodiment utilizes the characteristic of a Hall element and is used for detecting angular position information when the spindle rotates.

Referring to fig. 1, the sensor detection unit further includes a circuit board 3 and a sensor pin 6, the magnetic sensor 4 and the sensor pin 6 are both soldered on the circuit board 3, and a signal detected by the magnetic sensor 4 is output through the circuit board 3 and the sensor pin 6.

Furthermore, the sensor pin 6 can write the initial position of the magnetic sensor 4, the main shafts 10 of a plurality of different AMT actuators are fixed at the same mechanical position, and the position is set to be written as the initial position of the magnetic sensor 4, so that the consistency of the positions of a plurality of products of the AMT actuators is realized.

Specifically, in order to fix the magnetic sensor 4 and the circuit board 3, the sensor detection unit in the present embodiment further includes a sensor housing 5 for mounting the magnetic sensor 4 and the circuit board 3, and the sensor housing 5 is mounted outside the AMT actuator housing 1.

Specifically, sensor housing 5 with be provided with sealing washer 2 between the AMT actuating mechanism casing 1, sealing washer 2 is O type circle, sealing washer 2 ensures that AMT actuating mechanism and sensor detecting element hookup location are sealed, can dustproof and waterproof.

Specifically, two positioning spigots which are symmetrically arranged by taking the main shaft 10 as an axis are arranged in the sensor shell 5, the magnetic sensor 4 and the circuit board 3 are installed on the sensor shell 5 in the middle of the two positioning spigots, and the installation position of the magnetic sensor 4 is controlled by the positions of the positioning spigots, so that the magnetic sensor 4 and the magnet 7 are ensured to be installed concentrically.

In this embodiment, the spindle 10 is mounted on the AMT actuator housing 1 through a bearing 9, the spindle 10 can rotate in the bearing 9, and the bearing 9 can limit the radial movement of the spindle 10, so as to ensure that the positions of the magnet 7 and the magnetic sensor 4 on the spindle 9 are always unchanged, and ensure the detection accuracy of the magnetic sensor 4.

Specifically, the magnet 7 is mounted at the end of the spindle 10 through a magnetic insulation sleeve 8, and the magnetic insulation sleeve 8 is arranged between the magnet 7 and the spindle 10, so that the magnet 7 does not affect the normal rotation of the spindle 10.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a position detection device of AMT actuating mechanism which characterized in that: including installing sensor detecting element outside AMT actuating mechanism housing and the magnet of setting at the main shaft tip of AMT actuating mechanism, the magnet rotates along with the main shaft, sensor detecting element include with magnet complex magnetic sensor, magnetic sensor with the centre of a circle of magnet use the main shaft sets up as the center is concentric, leave the space between magnetic sensor and the magnet, the space is not more than the magnetic induction intensity scope of magnet.

2. The AMT actuator position detection apparatus according to claim 1, wherein: when the AMT executing mechanism works, the magnet rotates along with the main shaft, so that magnetic field change is generated, and the magnetic sensor senses the angular position information of the main shaft according to the change of the magnetic field of the magnet.

3. The AMT actuator position detection apparatus according to claim 1, wherein: the sensor detection unit further comprises a circuit board and a sensor pin, the magnetic sensor and the sensor pin are welded on the circuit board, and signals detected by the magnetic sensor are output through the circuit board and the sensor pin.

4. The AMT actuator position detection apparatus according to claim 3, wherein: the initial position of the magnetic sensor can be written through the sensor pin.

5. The AMT actuator position detection apparatus according to claim 3, wherein: the sensor detection unit further comprises a sensor shell used for mounting the magnetic sensor and the circuit board, and the sensor shell is mounted outside the AMT actuating mechanism shell.

6. The AMT actuator position detection apparatus according to claim 5, wherein: and a sealing ring is arranged between the sensor shell and the AMT actuating mechanism shell.

7. The AMT actuator position detection apparatus according to claim 5, wherein: two positioning rabbets which are symmetrically arranged by taking the main shaft as an axis are arranged in the sensor shell.

8. The AMT actuator position detection apparatus according to claim 1, wherein: the main shaft is arranged on the AMT actuating mechanism shell through a bearing.

9. The AMT actuator position detection apparatus according to claim 1, wherein: the magnet is arranged at the end part of the main shaft through a magnetic insulation sleeve.

10. The AMT actuator position detection apparatus according to claim 1, wherein: the magnetic sensor is a Hall element.