CN116334888A - Traction structure of drainage tractor - Google Patents

Abstract

The invention provides a traction structure of a drainage tractor, which comprises a shaft body, a stop assembly, a stop wheel assembly, a planetary reduction mechanism, a clutch assembly, a 2G gear, an output gear and a steel wire rope, wherein the shaft body is provided with a first gear, a second gear and a third gear; the stop assembly, the stop wheel assembly, the planetary reduction mechanism, the clutch assembly, the 2G gear and the output gear are respectively arranged on a stator of the motor through a shaft body; the stop component is in meshed connection with the planetary reduction mechanism through the stop wheel component, so that the planetary reduction mechanism is locked; the planetary reduction mechanism drives the output gear to rotate through the 2G gear, the clutch assembly is provided with a shifting part linked with the output gear, and the steel wire rope is wound on the output gear. The invention can effectively avoid the problem that the positioning deviation of motor assembly affects the meshing consistency of all parts, thereby improving the working stability of the drainage tractor and simultaneously ensuring that the drainage tractor has compact structure and small size.

Description

Traction structure of drainage tractor

Technical Field

The invention relates to the technical field of retractors, in particular to a traction structure of a drainage retractor.

Background

The drainage tractor is an important component for ensuring the normal operation of the full-automatic washing machine and mainly controls the drainage of the full-automatic washing machine. The drainage tractor takes a micro motor as power, and finally drives a traction rope fixed on a traction wheel to roll through a gear reduction mechanism, so that a drainage valve of the washing machine connected to the other end of the traction wheel is opened, and the aim of automatic drainage is fulfilled. The drainage tractor must have the outage restoration function, namely after outage, the induction mechanism loses electromagnetic induction, the stop lever resets under the action of the stop spring, the stop wheel is released, the traction rope is pulled out and reset by the drainage valve (spring) of the washing machine, and the traction rope returns to an initial state and waits for the next traction action.

In the working process of the drainage tractor, the traction structure is an important structure of the tractor, and directly influences the traction stroke of the tractor and also influences the working time of the drainage valve. However, in the existing traction structure, the mounting shafts of the components connected with each other are respectively mounted on the base and the motor, when the motor is assembled into the base, the phenomenon that the motor positioning deviation causes deviation in the engagement of the components connected with each other, so that the engagement consistency between the components is poor, the rotation of the output gear driving the traction structure is unstable, and the stability of the traction working performance of the tractor is affected. Meanwhile, the structure of the drainage tractor is not compact and the volume is large because the installation of the separated part of the installation shaft. In addition, the output gear of the existing traction structure is positioned by being matched with the hole column of the base, so that the meshing precision of the output gear and the planetary reduction mechanism is low, and the service life of the output gear is shortened.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings in the prior art and provides a traction structure of a drainage tractor, which can effectively avoid the problem that the meshing consistency of all parts is influenced by the positioning deviation of motor assembly, thereby improving the working stability of the drainage tractor and simultaneously enabling the drainage tractor to be compact in structure and small in size.

In order to achieve the above purpose, the invention is realized by the following technical scheme: a traction structure of a drainage tractor, which is characterized in that: the motor is arranged on a stator of the motor through a shaft body; the traction structure comprises a shaft body, a stop assembly, a stop wheel assembly, a planetary reduction mechanism, a clutch assembly, a 2G gear, an output gear and a steel wire rope; the stop assembly, the stop wheel assembly, the planetary reduction mechanism, the clutch assembly, the 2G gear and the output gear are respectively arranged on a stator of the motor through a shaft body; the stop component is in meshed connection with the planetary reduction mechanism through the stop wheel component, so that the planetary reduction mechanism is locked; the planetary reduction mechanism drives the output gear to rotate through a 2G gear, the clutch assembly is provided with a shifting part linked with the output gear, and the steel wire rope is wound on the output gear; when the output gear rotates, the steel wire rope is wound for traction, and when the output gear dials the shifting part, the traction of the steel wire rope is finished.

In the scheme, the traction structure is all arranged on the stator of the motor, so that the positioning deviation of the motor during the internal assembly of the tractor can not influence the meshing consistency of all parts of the traction structure, and the working stability of the drainage tractor is improved. The invention changes the internal structure of the traditional tractor, redesigns the distribution of the shaft bodies of all parts on the motor stator, so that the stop assembly, the stop wheel assembly, the planetary reduction mechanism, the clutch assembly, the 2G gear and the output gear are effectively meshed, and the drainage tractor has compact structure and small size. In addition, the output gear is also arranged on the motor stator through the shaft body and can be matched and positioned with the planetary reduction mechanism, so that the meshing precision is high, and the service life of the output gear is prolonged.

The stop assembly is engaged with the inducer assembly of the retractor; the stop assembly comprises a stop lever, a stop spring and a stop 1G gear; one end of the stop spring is connected with the stop lever, and the other end of the stop spring is fixedly connected with the stop lever; the induction component is connected with the stop 1G gear; when the induction component drives the stop lever to rotate against the pulling force of the stop spring through the stop 1G gear, the stop lever locks the stop wheel component, and the stop wheel component locks the planetary reduction mechanism.

The shaft bodies of the stop assemblies, which are respectively arranged on the motor stator, are a shaft body III and a shaft body IV; the stop 1G gear is sleeved on the shaft body III and is respectively meshed with the gear of the induction component and the stop lever; the stop lever comprises a lever body, the lever body is sleeved on the shaft body IV and provided with a fixed column used for being connected with the stop spring, and the end part of the fixed column is provided with a step used for preventing the stop spring from falling off;

the lever body is in transmission connection with the induction component through a stop 1G gear; the other end of the stop spring is fixed through a stop fixed shaft; the lever body is also provided with a blocking portion for contacting the stop fixed shaft and a stop block for blocking the stop wheel assembly, respectively.

The stop wheel assembly comprises a stop wheel and an inertia plate, and the inertia plate is detachably arranged on the stop wheel to form a whole; the shaft body of the stop wheel assembly, which is arranged on the motor stator, is a shaft body five; the stop wheel is arranged on the fifth shaft body and is in meshed connection with the planetary reduction mechanism; the stop assembly is used for locking the stop wheel and the lock, and the stop wheel locks the planetary reduction mechanism. The inertia plate is detachably arranged on the stop wheel to form a whole, and replaces the inertia plate bracket, the inertia plate and the stop wheel which are separately arranged in the traditional traction structure, so that the number of shaft bodies is reduced. According to the invention, the shaft bodies of the traction structure are all installed on the motor stator, so that the shaft bodies on the motor stator are reasonably arranged, the traditional structure is optimized, the internal space of the tractor can be saved, the structure of the tractor is compact, the volume is reduced, and the stability and the reliability of the operation of the tractor can be improved.

The stop wheel comprises a shaft sleeve, a stop gear in meshed connection with the planetary reduction mechanism and a platform for mounting an inertia plate; the shaft sleeve is arranged on the shaft body five and penetrates through the platform, and the stop gear is arranged on the shaft sleeve; the shaft sleeve, the stop gear and the platform are of an integrated structure;

the inertia plate is clamped and detachably connected with the part of the shaft sleeve above the platform; the platform is provided with a positioning part which is convenient for the installation and positioning of the inertia plate; the inertia plate is provided with a positioning hole matched with the positioning part.

The platform is provided with a boss as a locking portion of the locking assembly for locking the locking wheel.

The planetary reduction mechanism is arranged on a motor stator, and comprises a 1G splicing gear, a gear shell, a planetary gear and a driving disc which are respectively sleeved on the shaft body six; the 1G splicing gear is provided with a gear part penetrating into the gear shell, and the planetary gear is arranged in the gear shell and is respectively meshed and connected with the gear part of the 1G splicing gear and the inner teeth of the gear shell; the gear shell is in meshed connection with the stop wheel assembly; the driving disc is connected with the gear shell through a planetary gear and meshed with the 2G gear.

The shaft bodies of the clutch components, which are respectively arranged on the motor stator, are a shaft body six and a shaft body seven; the clutch assembly comprises a clutch lever arranged on a shaft body seven, and a 1G gear and a clutch spring which are arranged on a shaft body six; the 1G gear is respectively connected with the motor rotor and the planetary reduction mechanism in a meshed manner; the clutch pressure spring is positioned between the 1G gear and the planetary reduction mechanism; the clutch lever comprises a body, and the body is provided with a shifting part for being linked with the output gear.

The body is also provided with a step structure, the step structure is provided with a chute, and the chute is sleeved on the shaft body six and is positioned below the 1G gear; the method comprises the steps of carrying out a first treatment on the surface of the When the clutch lever swings around the shaft body seven as the center, the 1G gear is switched between the high position and the low position of the step structure along the sliding groove under the action of the clutch pressure spring, so that the 1G gear is connected with the 1G splicing gear when the 1G gear is at the high position, and the 1G gear is disconnected with the 1G splicing gear when the 1G gear is at the low position;

the body is also provided with a poking groove which is used for being linked with a retaining lever of the tractor;

the shifting part, the step structure and the shifting groove are distributed along the circumferential direction of the body of the clutch lever.

The shaft body of the output gear arranged on the motor stator is a shaft body eight; the bottom of the output gear is provided with a convex part which is used for being linked with the shifting part.

The 1G assembly gear (sun gear), the gear shell (gear ring), the planetary gear and the driving disc (planet carrier) form a planetary reduction mechanism.

When the tractor is not electrified, the steel wire rope is in an extending state, the clutch pressure spring is arranged between the 1G gear and the 1G splicing gear, the 1G gear is positioned on a step structure of the clutch lever, the clutch pressure spring is in a compressed state, and a shifting groove of the clutch lever is matched and linked with a shifting block of a holding lever of the tractor. The rotor of motor and 1G gear meshing, 1G gear's two convex teeth and 1G piece together with the bottom concave tooth meshing of gear, 1G piece together with the gear and with 3 planetary gear meshing, 3 planetary gear and the internal tooth meshing of gear shell, 3 planetary gear install respectively on the cylinder of driving disk, driving disk and 2G gear meshing, 2G gear and output gear meshing.

When the tractor is electrified, the induction component drives the stop lever to rotate against the pulling force of the stop spring, the stop lever locks the stop wheel, and the stop wheel locks the external teeth of the gear shell of the planetary reduction mechanism. In addition, the motor rotor drives the 1G gear to rotate, the 1G gear drives the 1G splicing gear to rotate, the 1G splicing gear drives the planetary gear to rotate, and because the external teeth of the gear shell are locked by the stop wheel, the planetary gear drives the driving disc to rotate, the driving disc drives the 2G gear to rotate, the 2G gear drives the output gear to rotate, the output gear winds the steel wire rope, the exposed part of the steel wire rope is gradually shortened, the load is pulled, and the traction work of the tractor is realized.

When the specified stroke is reached, the convex part of the output gear stirs the shift part of the clutch lever, so that the clutch lever swings around the shaft body seven as the center. The step structure of clutch lever removes below 1G gear, and clutch pressure spring pushes up 1G gear to clutch lever step structure's low department, and at this moment, 1G gear and 1G piece together with the gear and disengage, and 1G piece together with the gear and stop rotatory, at this moment, planetary gear, driving disk and 2G gear all stop rotatory for the gear that gives out force stops rotating, and wire rope pulls and ends. Meanwhile, the shifting groove of the clutch lever is matched and linked with the shifting block of the retaining lever of the tractor, so that the arc-shaped teeth of the retaining lever are meshed and locked with the 1G splicing gear, and the 1G splicing gear is prevented from reversing under the action of load.

Compared with the prior art, the invention has the following advantages and beneficial effects: the traction structure of the drainage tractor can effectively avoid the problem that the meshing consistency of all parts is affected by the positioning deviation of motor assembly, thereby improving the working stability of the drainage tractor, and simultaneously enabling the drainage tractor to be compact in structure and small in size.

Drawings

FIG. 1 is a schematic view of a portion of a traction structure of the present invention;

FIG. 2 is a schematic view of a traction structure of the present invention;

FIG. 3 is a schematic view of a drag structure stop lever of the present invention;

FIG. 4 is a schematic view of a traction structure stop sheave of the present invention;

FIG. 5 is a schematic view of a 1G gear in the traction configuration of the present invention;

FIG. 6 is a schematic view of a 1G split gear in the traction configuration of the present invention;

FIG. 7 is a schematic view of a gear housing in a traction configuration of the present invention;

FIG. 8 is a schematic view of a clutch lever in a traction configuration of the present invention;

FIG. 9 is a schematic view of a power take-off gear in the traction configuration of the present invention;

FIG. 10 is a schematic view of a drive disk in a traction configuration of the present invention;

wherein,, 1 is a motor, 1.1 is a rotor, 2 is an induction component, 4 is a stop component, 4.1.1 is a fixed column, 4.1.2 is a step, 4.1.4 is a blocking part, 4.1.5 is a stop block, 4.2 is a stop spring, 4.3 is a stop 1G gear, 5 is a stop wheel component, 5.1 is a stop wheel, 5.1.1 is a shaft sleeve, 5.1.2 is a gear, 5.1.3 is a platform, 5.1.4 is a positioning part, 5.1.5 is a cam, 5.1.2 is an inertia plate, 6 is a planetary reduction mechanism, 6.1 is a 1G gear, 6.1.1 is a concave tooth, 6.1.2 is a ratchet, 6.1.3 is a gear part, 6.2 is an inner tooth, 6.2.2 is an outer tooth, 6.2.3 is a convex point, 6.3 is a planetary gear the driving disk is 6.4, the cylinder is 6.4.1, the symmetrical arc-shaped bulge is 6.4.2, the driving gear is 6.4.3, the clutch component is 7, the clutch lever is 7.1, the shifting block is 7.1.1, the step structure is 7.1.2, the chute is 7.1.3, the shifting groove is 7.1.4, the 1G gear is 7.2.1, the hollowed rib is 7.2.2, the convex tooth is 7.3, the clutch pressure spring is 7.3, the output gear is 8, the square notch is 8.1, the track groove is 8.2, the convex part is 8.3, the holding lever is 9, the steel wire rope is 10, the shaft body is 11, the fixed shaft body is 12, the fixed shaft body is 13, the shaft body is five, the shaft body is 14 is six, the shaft body is 15, the shaft body is seven, the shaft body is 16 is the shaft body eight, the shaft body 17 is the 2G gear, and the shaft body is 18 is the shaft body three.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

Examples

As shown in fig. 1 to 10, the traction structure of the drainage tractor of the present invention is mounted on the stator of the motor 1 through a shaft body; the traction structure comprises a shaft body, a stop assembly 4, a stop wheel assembly 5, a planetary reduction mechanism 6, a clutch assembly 7, a 2G gear 17, an output gear 8 and a steel wire rope 10, wherein the stop assembly 4, the stop wheel assembly 5, the planetary reduction mechanism 6, the clutch assembly 7, the 2G gear 17 and the output gear 8 are respectively arranged on a stator of the motor 1 through the shaft body. The stop assembly 4 is in meshed connection with the planetary reduction mechanism 6 through the stop wheel assembly 5 to lock the planetary reduction mechanism 6, the planetary reduction mechanism 6 drives the output gear 8 to rotate through the 2G gear 7.2, the clutch assembly 7 is provided with a shifting part 7.1.1 linked with the output gear 8, and the steel wire rope 10 is wound on the output gear 8; when the output gear 8 rotates, the steel wire rope 10 is wound to carry out traction work, and when the output gear 8 dials the gear shifting part 7.1.1, the traction of the steel wire rope 10 is finished.

Specifically, the stop assembly 4 of the invention is meshed with the guide assembly 2 of the tractor, the stop assembly 4 comprises a stop lever 4.1, a stop spring 4.2 and a stop 1G gear 4.3, wherein one end of the stop spring 4.2 is connected with the stop lever 4.1, the other end is fixedly connected, the rotor of the motor 1 drives the guide assembly 2 to rotate, the guide assembly 2 is connected with the stop 1G gear 4.3, the guide assembly 2 drives the stop 1G gear 4.3, the stop 1G gear 4.3 drives the stop lever 4.1, and when the stop lever 4.1 rotates against the pulling force of the stop spring 4.2, the stop lever 4.1 locks the stop wheel assembly 5, and the stop wheel assembly 5 locks the planetary reduction mechanism 6. The shaft bodies of the stop component 4 which are respectively arranged on the stator of the motor 1 are a shaft body III 18 and a shaft body IV 11, and the stop 1G gear 4.3 is sleeved on the shaft body III 18 and is respectively meshed with the gears of the induction component 2 and the stop lever 4.1. The stop lever 4.1 comprises a lever body, the lever body is sleeved on the shaft body IV 11 and is provided with a fixed column 4.1.1 used for being connected with the stop spring 4.2, and the end part of the fixed column 4.1.1 is provided with a step 4.1.2 used for preventing the stop spring 4.2 from falling off. The lever body is in transmission connection with the induction component 2 through a stop 1G gear 4.3, and the other end of the stop spring 4.2 is fixed through a stop fixed shaft 12; the lever body is also provided with a blocking portion 4.1.4 for contacting the stop fixed shaft 12 and a stop block 4.1.5 for blocking the stop wheel assembly 5, respectively.

The stop wheel assembly 5 comprises a stop wheel 5.1 and an inertia plate 5.2, wherein the inertia plate 5.2 is detachably arranged on the stop wheel 5.1 to form a whole, a shaft body of the stop wheel assembly 5, which is arranged on a stator of the motor 1, is a shaft body five 13, the stop wheel 5.1 is arranged on the shaft body five 13 and is in meshed connection with the planetary reduction mechanism 6, the stop assembly 4 locks the stop wheel 5.1, and the stop wheel 5.1 locks the planetary reduction mechanism 6. Specifically, the stop wheel 5.1 includes a shaft sleeve 5.1.1, a stop gear 5.1.2 for meshing connection with the planetary reduction mechanism 6, and a platform 5.1.3 for mounting the inertia plate 5, wherein the shaft sleeve 5.1.1 is mounted on the shaft body five 13 and is penetrated on the platform 5.1.3, the stop gear 5.1.2 is disposed on the shaft sleeve 5.1.1, and the shaft sleeve 5.1.1, the stop gear 5.1.2, and the platform 5.1.3 are in an integral structure. The inertia plate 5.2 is detachably connected with the part of the shaft sleeve 5.1.1 above the platform 5.1.3 in a clamping way, and the platform 5.1.3 is provided with a positioning part 5.1.4 which is convenient for the installation and positioning of the inertia plate 5.2; the inertia plate 5.2 is provided with a positioning hole matching the positioning part 5.1.4. While the platform is provided with a projection 5.1.5, which projection 5.1.5 acts as a locking part for the locking wheel 5.1 by the stop block 4.1.5 of the stop lever 4.1.

The shaft body of the planetary reduction mechanism 6 arranged on the stator of the motor 1 is a shaft body six 14, the planetary reduction mechanism 6 comprises a 1G spliced gear 6.1, a gear shell 6.2, a planetary gear 6.3 and a driving disc 6.4 which are respectively sleeved on the shaft body six 14, wherein the 1G spliced gear 6.1 is provided with a gear part 6.1.3 penetrating into the gear shell 6.2, and the planetary gear 6.3 is arranged in the gear shell 6.2 and is respectively meshed and connected with the gear part 6.1.3 of the 1G spliced gear 6.1 and the inner tooth 6.2.1 of the gear shell 6.2, and annular ribs are arranged on two end faces of each planetary gear 6.3 so as to reduce friction between the planetary gear 6.3 and a plane. The external toothing 6.2.2 of the gear housing 6.2 is in meshing connection with the stop gear 5.1.2 of the stop gear 5.1, the drive disk 6.4 is connected via the planetary gears 6.3 to the internal toothing 6.2.3 of the gear housing 6.2, and the drive teeth 6.4.3 of the drive disk 6.4 are in meshing connection with the 2G gear 17.

The clutch assembly 7 is respectively arranged on a stator of the motor 1, and comprises a shaft body six 14 and a shaft body seven 15, wherein the clutch assembly 7 comprises a clutch lever 7.1 arranged on the shaft body seven 15, a 1G gear 7.2 and a clutch pressure spring 7.3 which are arranged on the shaft body six 14, and the clutch pressure spring 7.3 is arranged between the 1G gear 7.2 and the 1G splicing gear 6.1. The 2G gear 17 is mounted on the shaft body seven 15 above the clutch lever 7.1. The clutch lever 7.1 comprises a body, wherein the body is provided with a shifting part 7.1.1 for being linked with an output gear 8, the body is also provided with a step structure 7.1.2, the step structure 7.1.2 is provided with a sliding groove 7.1.3, and the sliding groove 7.1.3 is sleeved on a shaft body six 14 and is positioned below a 1G gear 6.1; when the clutch lever 7.1 swings around the shaft body seven 15, the 1G gear 6.1 is switched between the high position and the low position of the step structure 7.1.2 along the sliding groove 7.1.3 under the action of the clutch pressure spring 6.2, so that the 1G gear 6.1 is connected with the 1G splicing gear 6.3 when the 1G gear 6.1 is at the high position, and the 1G gear 6.1 is disconnected with the 1G splicing gear 6.3 when the 1G gear 6.1 is at the low position. The body is also provided with a shifting groove 7.1.4 for being linked with a retaining lever 9 of the tractor, and the shifting part 7.1.1, the step structure 7.1.2 and the shifting groove 7.1.4 are distributed along the circumferential direction of the body of the clutch lever 7.1.

Specifically, the 1G gear 7.2 is provided with the convex teeth 7.2.2 and two symmetrical arc-shaped hollowed ribs 7.2.1, the convex teeth 7.2.2 are arranged at one end of the hollowed ribs 7.2.1 and protrude, the hollowed ribs 7.2.1 play a role in dispersing the action force of the convex teeth 7.2.2, and the convex teeth 7.2.2 are meshed with the 1G splicing gear 6.1 to play a role in driving the 1G splicing gear 6.1 to rotate. The clutch pressure spring 7.3 is arranged between the 1G gear 7.2 and the 1G splicing gear 6.1, and plays a role in controlling the 1G gear 7.2 to be in clutch with the 1G splicing gear 6.1.

The 1G-split gear 6.1 is provided with a concave tooth 6.1.1 meshing with the convex tooth 7.2.2 of the 1G gear 7.2, a ratchet wheel 6.1.2 meshing with the holding lever 10, and a gear portion 6.1.3 serving as a sun gear of the planetary gear 6.3. The gear case 6.2 is provided with internal teeth 6.2.1 meshing with the planetary gear 6.3 and external teeth 6.2.2 meshing with the stopper gear 5.1.2 of the stopper gear 5.1 as planetary gear train ring gears, and has uniformly distributed protruding points 6.2.3 for preventing the drive disk 6.4 from falling off at the inner wall opening. The drive disk 6.4 serves as a planet carrier in the planetary gear train and is provided with a cylinder 6.4.1 for mounting the planet gear 6.3, symmetrical arc-shaped projections 6.4.2 and a drive gear 6.4.3 which is engaged with the 2G gear 8.

The shaft body of the output gear 8 mounted on the stator of the motor 1 is a shaft body eight 16, the output gear 8 is provided with a square notch 8.1 for mounting a steel wire rope 10, a track groove 8.2 for winding the steel wire rope 10 and a gear meshed with the 2G gear 7.2, the bottom of the output gear is provided with a convex part 8.3 for being linked with a shifting part 7.1.1, and the shifting part 7.1.1 for shifting the clutch lever 7.1 is used for realizing the swinging of the clutch lever 7.1 by taking the shaft seven 15 as the center.

The working process of the traction structure of the invention is as follows:

when the tractor is not electrified, the steel wire rope 10 is in an extending state, the clutch pressure spring 7.3 is arranged between the 1G gear 7.2 and the 1G splicing gear 6.1, the 1G gear 7.2 is positioned on the step structure 7.1.2 of the clutch lever 7.1, the clutch pressure spring 7.3 is in a compressed state, and the poking groove 7.1.4 of the clutch lever 7.1 is matched and linked with a poking block of the retaining lever 9 of the tractor. The rotor 1.1 of the motor 1 is meshed with the 1G gear 7.2, the 1G gear 7.2 is meshed with the 1G splicing gear 6.1, the 1G splicing gear 6.1 is meshed with 3 planetary gears 6.3, 3 planetary gears 6.3 are meshed with the internal teeth 6.2.1 of the gear shell 6.2, the 3 planetary gears 6.3 are respectively arranged on the cylinder 6.4.1 of the driving disc 6.4, the driving disc 6.4 is meshed with the 2G gear 17, and the 2G gear 17 is meshed with the output gear 8.

When the tractor is electrified, the induction component 2 drives the stop lever 4.1 to rotate against the pulling force of the stop spring 4.2, the stop lever 4.1 locks the stop wheel 5.1, and the stop wheel 5.1 locks the external teeth of the gear shell 6.2 of the planetary reduction mechanism 6. In addition, the motor rotor 1.1 drives the 1G gear 7.2 to rotate, the convex teeth 7.2.2 of the 1G gear 7.2 drive the concave teeth 6.1.1 of the 1G splicing gear 6.1 to rotate, the 1G splicing gear 6.1 drives the planetary gear 6.3 to rotate, and the planetary gear 6.3 drives the driving disc 6.4 to rotate because the outer teeth 6.2.2 of the gear shell 6.2 are locked by the stop wheel 5.1, the driving disc 6.4 drives the 2G gear 17 to rotate, the 2G gear 17 drives the output gear 8 to rotate, the output gear 8 winds the steel wire rope 10, the exposed part of the steel wire rope 10 is gradually shortened, and the load is pulled away, so that the traction work of the tractor is realized.

When the predetermined stroke is reached, the protrusion 8.3 of the output gear 8 moves the shift portion 7.1.1 of the clutch lever 7.1, and the clutch lever 7.1 swings around the shaft seven 15. The step structure 7.1.2 of the clutch lever 7.1 moves below the 1G gear 6.1, the clutch pressure spring 7.3 pushes the 1G gear 7.2 to the lower part of the step structure 7.1.2 of the clutch lever 7.1, at the moment, the 1G gear 7.2 is separated from the 1G splicing gear 6.1, the 1G splicing gear 6.1 stops rotating, at the moment, the planetary gear 6.3, the driving disc 6.4 and the 2G gear 17 stop rotating, the output gear 8 stops rotating, and the traction of the steel wire rope 10 is finished. Simultaneously, the shifting groove 7.1.4 of the clutch lever 7.1 is matched and linked with the shifting block of the retaining lever 9 of the tractor, so that the arc-shaped teeth of the retaining lever 9 are meshed and locked with the 1G splicing gear 6.1, and the 1G splicing gear 6.1 is prevented from reversing under the action of load.

The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.

Claims (10)

1. A traction structure of a drainage tractor, which is characterized in that: the motor is arranged on a stator of the motor through a shaft body; the traction structure comprises a shaft body, a stop assembly, a stop wheel assembly, a planetary reduction mechanism, a clutch assembly, a 2G gear, an output gear and a steel wire rope; the stop assembly, the stop wheel assembly, the planetary reduction mechanism, the clutch assembly, the 2G gear and the output gear are respectively arranged on a stator of the motor through a shaft body; the stop component is in meshed connection with the planetary reduction mechanism through the stop wheel component, so that the planetary reduction mechanism is locked; the planetary reduction mechanism drives the output gear to rotate through a 2G gear, the clutch assembly is provided with a shifting part linked with the output gear, and the steel wire rope is wound on the output gear; when the output gear rotates, the steel wire rope is wound for traction, and when the output gear dials the shifting part, the traction of the steel wire rope is finished.

2. The traction structure of a drainage retractor of claim 1 wherein: the stop assembly is engaged with the inducer assembly of the retractor; the stop assembly comprises a stop lever, a stop spring and a stop 1G gear; one end of the stop spring is connected with the stop lever, and the other end of the stop spring is fixedly connected with the stop lever; the induction component is connected with the stop 1G gear; when the induction component drives the stop lever to rotate against the pulling force of the stop spring through the stop 1G gear, the stop lever locks the stop wheel component, and the stop wheel component locks the planetary reduction mechanism.

3. The traction structure of a drainage retractor of claim 2 wherein: the shaft bodies of the stop assemblies, which are respectively arranged on the motor stator, are a shaft body III and a shaft body IV; the stop 1G gear is sleeved on the shaft body III and is respectively meshed with the gear of the induction component and the stop lever; the stop lever comprises a lever body, the lever body is sleeved on the shaft body IV and provided with a fixed column used for being connected with the stop spring, and the end part of the fixed column is provided with a step used for preventing the stop spring from falling off;

the lever body is in transmission connection with the induction component through a stop 1G gear; the other end of the stop spring is fixed through a stop fixed shaft; the lever body is also provided with a blocking portion for contacting the stop fixed shaft and a stop block for blocking the stop wheel assembly, respectively.

4. The traction structure of a drainage retractor of claim 1 wherein: the stop wheel assembly comprises a stop wheel and an inertia plate, and the inertia plate is detachably arranged on the stop wheel to form a whole; the shaft body of the stop wheel assembly, which is arranged on the motor stator, is a shaft body five; the stop wheel is arranged on the fifth shaft body and is in meshed connection with the planetary reduction mechanism; the stop assembly is used for locking the stop wheel and the lock, and the stop wheel locks the planetary reduction mechanism.

5. The traction structure of a drainage retractor of claim 4 wherein: the stop wheel comprises a shaft sleeve, a stop gear in meshed connection with the planetary reduction mechanism and a platform for mounting an inertia plate; the shaft sleeve is arranged on the shaft body five and penetrates through the platform, and the stop gear is arranged on the shaft sleeve; the shaft sleeve, the stop gear and the platform are of an integrated structure;

the inertia plate is clamped and detachably connected with the part of the shaft sleeve above the platform; the platform is provided with a positioning part which is convenient for the installation and positioning of the inertia plate; the inertia plate is provided with a positioning hole matched with the positioning part.

6. The drainage retractor of claim 5 wherein: the platform is provided with a boss as a locking portion of the locking assembly for locking the locking wheel.

7. The traction structure of a drainage retractor of claim 1 wherein: the planetary reduction mechanism is arranged on a motor stator, and comprises a 1G splicing gear, a gear shell, a planetary gear and a driving disc which are respectively sleeved on the shaft body six; the 1G splicing gear is provided with a gear part penetrating into the gear shell, and the planetary gear is arranged in the gear shell and is respectively meshed and connected with the gear part of the 1G splicing gear and the inner teeth of the gear shell; the gear shell is in meshed connection with the stop wheel assembly; the driving disc is connected with the gear shell through a planetary gear and meshed with the 2G gear.

8. The drainage retractor of claim 7 wherein: the shaft bodies of the clutch components, which are respectively arranged on the motor stator, are a shaft body six and a shaft body seven; the clutch assembly comprises a clutch lever arranged on a shaft body seven, and a 1G gear and a clutch spring which are arranged on a shaft body six; the 1G gear is respectively connected with the motor rotor and the planetary reduction mechanism in a meshed manner; the clutch pressure spring is positioned between the 1G gear and the planetary reduction mechanism; the clutch lever comprises a body, and the body is provided with a shifting part for being linked with the output gear.

9. The drainage retractor of claim 8 wherein: the body is also provided with a step structure, the step structure is provided with a chute, and the chute is sleeved on the shaft body six and is positioned below the 1G gear; when the clutch lever swings around the shaft body seven as the center, the 1G gear is switched between the high position and the low position of the step structure along the sliding groove under the action of the clutch pressure spring, so that the 1G gear is connected with the 1G splicing gear when the 1G gear is at the high position, and the 1G gear is disconnected with the 1G splicing gear when the 1G gear is at the low position;

the body is also provided with a poking groove which is used for being linked with a retaining lever of the tractor;

the shifting part, the step structure and the shifting groove are distributed along the circumferential direction of the body of the clutch lever.

10. The drainage retractor of claim 8 wherein: the shaft body of the output gear arranged on the motor stator is a shaft body eight; the bottom of the output gear is provided with a convex part which is used for being linked with the shifting part.

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