CN212875606U

CN212875606U - Improved potentiometer steering engine adopting Hall element

Info

Publication number: CN212875606U
Application number: CN202022078044.XU
Authority: CN
Inventors: 袁兴平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-02
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to a steering wheel field indicates an adopt hall element improved generation potentiometre steering wheel especially, including casing, output shaft and install motor element, PCBA circuit board, decelerator and the position detection subassembly in the casing, the position detection subassembly includes the cam, stirs magnetite seat, hall element, the cam is fixed with the output shaft lower extreme, it is equipped with the magnetite to stir on the magnetite seat, hall element direct processing is on the PCBA circuit board, stir the magnetite seat and include supporting shoe, slider, guiding axle and expanding spring. The utility model discloses the steering wheel makes the steering wheel miniaturized through innovative designs such as hall element, magnetite. Wherein, the utility model discloses a cam, pulling magnetite seat, expanding spring, hall element etc. make the magnetite form the potentiometre of measuring usefulness in hall element top linear direction motion, longer than the life-span of traditional potentiometre, with low costs, process moreover simpler.

Description

Improved potentiometer steering engine adopting Hall element

Technical Field

The utility model relates to a steering wheel field indicates an adopt hall element improved generation potentiometre steering wheel especially.

Background

The traditional steering engine mainly comprises a shell, a circuit board, a driving motor, a reduction gear and a position detection element. The working principle is that the receiver sends a signal to the steering engine, the coreless motor is driven to rotate by I C on the circuit board, power is transmitted to the output shaft through the reduction gear, and meanwhile, the output shaft position detector sends back the signal to judge whether the coreless motor reaches the positioning. The position detector is actually a variable resistor or a rotary magnetic encoder, the voltage value can be changed when the steering engine rotates, and the rotating angle can be known according to the detected voltage value.

At present, the steering engines popular in the market are quite rich in shape and variety, but main functional modules inside the steering engines are basically the same, the steering engine controller is an execution mechanism of the whole control system, a central controller, a data memory, a driving module and the like are arranged inside the steering engine controller, a main board of the central controller is a single chip microcomputer, and language programs can be written manually to complete directional control.

In order to improve the control performance of the robot, a plurality of robot products use the direct current servo steering engine, so that the action control effect of the robot is better, but in the existing partial direct current servo steering engine, the potentiometer of the steering engine has short service life, higher cost and complex processing technology.

Disclosure of Invention

In order to solve the problem, the utility model provides an adopt hall element improved generation potentiometre steering wheel, reduce cost, processing is convenient.

In order to achieve the above object, the utility model adopts the following technical scheme: a steering engine adopting a Hall element improved potentiometer comprises a shell, an output shaft, a motor part, a PCBA circuit board, a speed reducer and a position detection assembly, wherein the motor part, the PCBA circuit board, the speed reducer and the position detection assembly are installed in the shell, the motor part and the position detection assembly are respectively and electrically connected with the PCBA circuit board, the speed reducer is in driving connection with the motor part, the output shaft is in driving connection with the speed reducer through a gear, the position detection assembly comprises a cam, a stirring magnet seat and a Hall element, the cam is fixed with the lower end of the output shaft, a magnet is arranged on the stirring magnet seat, the Hall element is directly machined on the PCBA circuit board, the stirring magnet seat comprises a supporting block, a sliding block, a guiding shaft and a telescopic spring, the upper end of the sliding block is in contact with the lower end of the cam, the supporting block is, one end of the guide shaft is connected with the fixing hole of the supporting block, the other end of the guide shaft is movably arranged in the guide hole, the telescopic spring is sleeved on the surface of the guide shaft, one end of the telescopic spring is connected with the supporting block, and the other end of the telescopic spring is connected with the sliding block.

Furthermore, the supporting block comprises a vertical plate and a horizontal plate, the fixing hole is horizontally arranged on the vertical plate, guide pillars are arranged on two sides of the horizontal plate, guide pillar holes are arranged on two sides of the sliding block, and the guide pillars are movably arranged in the guide pillar holes on two sides of the sliding block.

Furthermore, the upper end of the sliding block is provided with a plane boss, the salient point of the cam is in contact with the plane boss, and thrust can be generated on the side edge of the plane boss of the sliding block when the cam rotates, so that the sliding block is pushed to move linearly.

The lower end of the sliding block is provided with a clamping hole, and the magnet is fixedly inserted into the clamping hole.

Furthermore, the reduction gear comprises a reduction gear set and a clutch provided with a gear, the reduction gear set is in driving connection with a rotating shaft of the motor part, the reduction gear set is meshed with the gear of the clutch, and the output shaft is meshed with the gear of the clutch through the gear.

Further, the casing includes from last to including upper cover, well lid and lower cover down in proper order, the PCBA circuit board is fixed in the lower cover, motor element and position detection subassembly set up in the lid, decelerator and output shaft set up in the upper cover, well lid and lower cover are passed through in proper order from the lower cover through the double-screw bolt and are covered fixedly with the upper cover spiro union.

The upper cover is provided with an upper cover body, wherein extending parts are further arranged on two sides of the upper cover body, and mounting holes are formed in the surfaces of the extending parts.

The beneficial effects of the utility model reside in that: the utility model discloses a hall element improved generation potentiometre steering wheel makes the steering wheel miniaturized through innovative designs such as hall element, magnetite. Wherein, the utility model discloses a cam, pulling magnetite seat, expanding spring, hall element etc. make the magnetite form the potentiometre of measuring usefulness in hall element top linear direction motion, longer than the life-span of traditional potentiometre, with low costs, process moreover simpler.

Drawings

Fig. 1 is a perspective view of the present embodiment.

Fig. 2 is a schematic view of the internal structure of the present embodiment.

Fig. 3 is a sectional view of the present embodiment.

Fig. 4 is a schematic structural diagram of the position detecting assembly of the present embodiment.

Fig. 5 is a schematic structural view of the support block of the present embodiment.

Fig. 6 is a schematic structural view of the slider in this embodiment.

Fig. 7 is another schematic structural diagram of the slider in this embodiment.

The reference numbers illustrate: 1. a housing; 11. an upper cover; 111. an extension portion; 12. a middle cover; 13. a lower cover; 14. a stud; 2. an output shaft; 3. a motor component; 31. a motor brush piece; 32. a rotating shaft; 33. a magnet; 34. a coil; 35. a motor housing; 36. a commutator; PCBA circuit board; 41. a signal and power connector; 5. a reduction gear; 51. a reduction gear set; 52. a clutch; 6. a position detection component; 61. a cam; 62. shifting the magnet seat; 621. a magnet; 622. a support block; 6221. a guide post; 623. a slider; 6231. a guide hole; 6232. a guide post hole; 6233. a planar boss; 6234. a clamping hole; 624. a guide shaft; 625. a tension spring; 63. a Hall element.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. The present application may be embodied in many different forms and is not limited to the embodiments described in the present embodiment. The following detailed description is provided to facilitate a more thorough understanding of the present disclosure, and the words used to indicate orientation, top, bottom, left, right, etc. are used solely to describe the illustrated structure in connection with the accompanying figures.

Please refer to fig. 1-7, the utility model relates to an adopt hall element improved generation potentiometre steering wheel, including casing 1, output shaft 2 and install motor part 3, PCBA circuit board 4, decelerator 5 and position detection subassembly 6 in casing 1, motor part 3 and position detection subassembly 6 respectively with PCBA circuit board 4 electric connection, decelerator 5 and motor part 3 drive connection, output shaft 2 passes through gear and decelerator 5 drive connection, position detection subassembly 6 includes cam 61, stirs magnetite seat 62, hall element 63, cam 61 is fixed with the output shaft 2 lower extreme, it is equipped with magnetite 621 on the magnetite seat 62 to stir, hall element 63 is directly processed on PCBA circuit board 4, PCBA circuit board 4 one side still is connected with signal and power connector 41; the toggle magnet seat 62 comprises a supporting block 622, a sliding block 623, a guide shaft 624 and an extension spring 625, the upper end of the sliding block 623 is in contact with the lower end of the cam 61, the supporting block 622 is fixed with the shell 1, the supporting block 622 is provided with a fixing hole, the sliding block 623 is provided with a guide hole 6231 coaxial with the fixing hole, one end of the guide shaft 624 is connected with the fixing hole of the supporting block 622, the other end of the guide shaft 624 is movably arranged in the guide hole 6231, the extension spring 625 is sleeved on the surface of the guide shaft 624, one end of the extension spring 625 is connected with the supporting block 622, and the sliding block 623 at.

In this embodiment, the supporting block 622 includes a vertical plate and a horizontal plate, the fixing hole is horizontally disposed on the vertical plate, guide posts 6221 are disposed on two sides of the horizontal plate, guide post holes 6232 are disposed on two sides of the sliding block 623, and the guide posts 6221 are movably disposed in the guide post holes 6232 on two sides of the sliding block 623. The upper end of the sliding block 623 is provided with a plane boss 6233, the salient point of the cam 61 is in contact with the plane boss, and thrust is generated on the side edge of the plane boss 6233 of the sliding block 623 when the cam 61 rotates, so that the sliding block 623 is pushed to perform linear motion. In addition, the lower end of the sliding block 623 is provided with a clamping hole 6234, and the magnet 621 is inserted and fixed with the clamping hole 6234.

When the output shaft 2 rotates, the slide block 623 is pushed by the cam 61 to reciprocate back and forth in the left-right direction, and due to the limitation of the guide shaft 624 on the guide hole 6231 and the arrangement of the telescopic spring 625 connecting the support block 622 and the slide block 623, the slide block 623 moves more stably under the driving of the cam 61; finally, the magnet 621 at the lower end of the slider 623 moves back and forth in the horizontal direction above the hall element 63, so that the position detection is realized through the hall effect.

In this embodiment, the reduction gear unit 5 includes a reduction gear set 51 and a clutch 52 with a gear, the reduction gear set 51 is in driving connection with the rotating shaft 32 of the motor member 3, the reduction gear set 51 is engaged with the gear of the clutch 52, the output shaft 2 is engaged with the gear of the clutch 52 through the gear, and the clutch 52 is added in the reduction gear unit 5 to protect the gear from being damaged by instant impact.

The casing 1 in this embodiment includes from last to including upper cover 11, well lid 12 and lower cover 13 down in proper order, PCBA circuit board 4 is fixed in lower cover 13, motor element 3 and position detection subassembly 6 set up in the lid 12, decelerator 5 and output shaft 2 set up in upper cover 11, well lid 12 and lower cover 13 are through double-screw bolt 14 from lower cover 13 and are run through well lid 12 in proper order and upper cover 11 spiro union is fixed. The two sides of the upper cover 11 are further provided with extending portions 111, and the surfaces of the extending portions 111 are provided with mounting holes.

Compared with the prior art, this embodiment passes through cam 61, pulls out magnet seat 62, expanding spring 625, hall element 63 for magnet 621 forms the potentiometre that detects with the linear direction motion above hall element 63, adopts 1

magnet

621 and 1 hall element 63 to form brand-new position detection mode here, and the life-span that adopts traditional potentiometre is long, and is with low costs, processes moreover simpler.

It should be further noted that the cam 61 of this embodiment is preferably an eccentric wheel, and the motor component 3 mentioned in this embodiment is a conventional motor composed of the motor brush 31, the rotating shaft 32, the magnet 33, the coil 34, the motor housing 35 and the commutator 36, and will not be described again. Unless otherwise expressly stated or limited, the terms "connected," "fixed," "disposed," and the like are to be construed broadly and to include specific meanings of the terms in the context of the application as understood by one of ordinary skill in the art in view of the specific circumstances.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims

1. The utility model provides an adopt hall element improved generation potentiometre steering wheel, includes casing, output shaft and installs motor element, PCBA circuit board, decelerator and the position detection subassembly in the casing, motor element and position detection subassembly respectively with PCBA circuit board electric connection, decelerator and motor element drive are connected, the output shaft passes through the gear and is connected its characterized in that with the decelerator drive: the position detection subassembly includes the cam, stirs magnetite seat, hall element, the cam is fixed with the output shaft lower extreme, it is equipped with the magnetite to stir the magnetite seat, hall element directly processes on the PCBA circuit board, stir the magnetite seat including supporting shoe, slider, guiding axle and expanding spring, slider upper end and cam lower extreme contact, the supporting shoe is fixed with the casing, the supporting shoe is equipped with the fixed orifices, the slider is equipped with the guiding hole coaxial with the fixed orifices, guiding axle one end is connected with the fixed orifices of supporting shoe, and the other end is mobile to be set up in the guiding hole, expanding spring cup joints on the guiding axle surface, expanding spring one end is connected with the supporting shoe, and other end slider is connected.

2. The steering engine adopting the Hall element improved potentiometer according to claim 1, characterized in that: the supporting block comprises a vertical plate and a horizontal plate, the fixing hole is horizontally arranged on the vertical plate, guide pillars are arranged on two sides of the horizontal plate, guide pillar holes are formed in two sides of the sliding block, and the guide pillars are movably arranged in the guide pillar holes in the two sides of the sliding block.

3. The steering engine adopting the Hall element improved potentiometer according to claim 1, characterized in that: the upper end of the sliding block is provided with a plane boss, the salient point of the cam is in contact with the plane boss, and thrust can be generated on the side edge of the plane boss of the sliding block when the cam rotates, so that the sliding block is pushed to move linearly.

4. The steering engine adopting the Hall element improved potentiometer according to claim 1, characterized in that: the lower end of the sliding block is provided with a clamping hole, and the magnet is fixedly inserted into the clamping hole.

5. The steering engine adopting the Hall element improved potentiometer according to claim 1, characterized in that: the speed reducer comprises a speed reduction gear set and a clutch provided with a gear, the speed reduction gear set is in driving connection with a rotating shaft of the motor part, the speed reduction gear set is meshed with the gear of the clutch, and the output shaft is meshed with the gear of the clutch through the gear.

6. The steering engine adopting the Hall element improved potentiometer according to claim 1, characterized in that: the casing includes from last to including upper cover, well lid and lower cover down in proper order, the PCBA circuit board is fixed in the lower cover, in motor part and the setting of position detection subassembly in the lid, decelerator and output shaft set up in the upper cover, well lid and lower cover are through the double-screw bolt from the lower cover in proper order run through the lid fixed with the upper cover spiro union.

7. The steering engine adopting the Hall element improved potentiometer according to claim 6, wherein the steering engine comprises: extension parts are further arranged on two sides of the upper cover, and mounting holes are formed in the surfaces of the extension parts.