CN212290077U - But eccentric walking wheel based on planetary gear speed reduction - Google Patents

Abstract

The utility model discloses a wheel of walking suitable for paddy field soil relates to a can eccentric walking wheel based on planetary gear slows down, including reduction gears, hydraulic pressure mechanism, wheel leg mechanism and wheel rim part, the utility model discloses a can eccentric walking wheel has two kinds of operating condition, can realize the eccentric of inner race through reciprocating of inner race in the hydraulic pressure mechanism drive, and the eccentric motion of wheel leg mechanism up-and-down motion realization wheel leg of inner race's eccentric drive around inner race surface motion, the utility model discloses a can eccentric walking wheel is applicable to soft ground such as paddy field soil, compares with ordinary walking wheel and can reduce soil and adhere on the wheel leg, has good trafficability ability.

Description

But eccentric walking wheel based on planetary gear speed reduction

Technical Field

The utility model discloses an agricultural machine walking wheel relates to one kind and can eccentrically walk the wheel based on planetary gear speed reduction, be applicable to the agricultural machine of paddy field soil.

Background

As a big agricultural country, the development speed of agricultural mechanization is faster and faster in China, although the degree of agricultural mechanization of China is improved year by year, the working efficiency of agricultural machinery needs to be improved, a walking system is an important part influencing the working efficiency of the whole agricultural machinery, wheels are taken as important parts in the walking system of the agricultural machinery, and the influence of the wheels on the performance of the machinery, particularly the performance, is a leading factor, and the phenomena of large wheel slip rate, large walking resistance, vehicle collapse and the like caused by the irrational wheels of the agricultural machinery are rare; therefore, the design of the wheels suitable for paddy field soil walking is beneficial to improving the traction force and the driving efficiency of the hook for the agricultural machine to walk in the field operation, reducing the wheel slip, reducing the rolling resistance and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but, eccentric walking wheel based on planetary gear speed reduction, be applicable to paddy field soil. It can realize the eccentric motion of walking wheel leg, realizes that the one side wheel leg of walking wheel and soil contact outwards stretches out and forms leg formula walking wheel, and the wheel leg of keeping away from ground then inwards retracts and forms circular wheel, reaches the purpose of the glutinous mud on the clearance wheel leg.

In order to achieve the above object, the present invention provides the following solutions.

The utility model provides a but eccentric walking wheel based on planetary gear speed reduction, includes reduction gears, hydraulic pressure mechanism, wheel leg mechanism and wheel rim part, reduction gears includes planetary gear box, output shaft and is used for ploughing the fixed flange joint spare with declining frame joint, planetary gear box includes case lid, sun gear, planet wheel, ring gear, planet carrier, hydraulic pressure mechanism includes pneumatic cylinder base, pneumatic cylinder, business turn over hydraulic fluid port, oil feed hose, the hose that produces oil, quick change coupler, hydraulic push rod and backup pad, wheel leg mechanism includes wheel leg, guide block, wheel leg axle and wheel leg antifriction bearing, the wheel rim part includes outer rim, fixed wheel rim, interior wheel rim, fixed wheel rim lid, interior wheel rim lid, the outer rim with fixed wheel rim rotates around the output shaft together.

Preferably, a boss is processed at a box cover shaft hole of the planetary gear box, a positioning bearing is installed on the inner side of the boss and used for being connected with an output shaft, a planetary wheel shaft is installed on the planetary wheel and moves circumferentially around a sun wheel along with the planetary wheel, a shaft shoulder is processed at one end of the planetary wheel shaft, an elastic retainer ring groove is processed at the other end of the planetary wheel shaft and used for installing an elastic retainer ring to limit the axial movement of the planetary wheel, and the planetary wheel shaft and the planetary frame are fixed together through bolts; the shaft hole of the sun gear is processed into a hexagonal hole shape to facilitate connection of the input shaft, the inner gear ring and the right side end cover of the planetary gear box are processed into a whole, one end of the inner side of the boss hole is provided with the elastic retainer ring for the hole through the elastic retainer ring groove, and the other end of the boss hole limits axial movement of the positioning bearing through the inner boss of which the hole diameter is slightly smaller than the outer diameter of the bearing.

Preferably, the planet carrier and the output shaft are processed into a whole, a key groove and an elastic retainer ring groove are processed on the output shaft, a key is installed on the key groove, the outer wheel ring and the fixed wheel ring are used for power transmission, and the elastic retainer ring is installed on the elastic retainer ring groove to limit the axial freedom degree of the planetary gear box cover, the outer wheel ring and the fixed wheel ring.

Preferably, the flange connecting piece is connected with the inner gear ring through a fixing frame, a hydraulic oil duct is machined in the flange connecting piece, a quick-change connector is connected to a hydraulic oil duct opening to be conveniently connected with an external hydraulic pump to control the inlet and outlet of hydraulic oil, a roller pin and a supporting frame of the roller pin are further installed on a shaft of the flange connecting piece to support the fixed wheel rim cover, through holes in a circumferential array are machined in the outer end of the flange connecting piece to be fixed with the frame of the micro-cultivator, a sealing ring groove is further machined in the outer end of the flange connecting piece to be used for installing a sealing ring to play a sealing role, and a hexagonal hole bearing.

Preferably, the hydraulic cylinder base with planetary gear box passes through the bolt fastening and installs sealed oil ring and plays the sealing action together, install quick change coupler on the business turn over hydraulic fluid port, quick change coupler connects into, the oil outlet hose, advance, the oil outlet hose again through quick change coupler with flange joint's hydraulic pressure oil duct is connected, be connected with hydraulic push rod on the pneumatic cylinder, hydraulic push rod passes through bolted connection with the backup pad, the backup pad is processed into the cambered surface and is linked together with the contact of interior rim inner wall, through hydraulic pressure mechanism can drive fixed rim up-and-down motion reaches eccentric purpose.

Preferably, the both sides processing of wheel leg has the guide way, the guide block is installed on the fixed wheel circle, and its lower extreme is installed the sealing washer and is played sealed effect, the bottom processing of wheel leg has the shaft hole, through shaft hole connection wheel leg axle, two wheel leg antifriction bearings are connected as the moving part of wheel leg to the both ends of wheel leg axle.

Preferably, the inner wheel rim is provided with a groove as a sliding track of the wheel leg mechanism, a wheel leg retaining ring is arranged above the sliding track of the inner wheel rim, the wheel leg retaining ring and the inner wheel rim are integrally processed, the inner wheel rim cover is also provided with a wheel leg retaining ring, the wheel leg retaining ring is used for preventing the wheel leg mechanism from being separated from the sliding track, a circle of rubber ring is arranged at the contact position of the wheel leg retaining ring and a wheel leg shaft bearing and used for reducing vibration generated during walking wheel movement, and the shaft holes of the inner wheel rim and the inner wheel rim cover are processed into u-shaped holes as the guide of the up-and-down movement of the inner wheel rim.

Preferably, the rim of the fixed rim is provided with a square groove and a threaded hole, eight planes in circular arrays are processed in the rim, the eight planes are used for fixedly mounting the guide block of the wheel leg mechanism, the fixed rim and the fixed rim cover are connected together through bolts and provided with sealing rings to play a sealing role, and a key groove is processed on the shaft hole of the fixed rim and used for connecting an output shaft.

The outer wheel rim is a circular wheel frame formed by processing aluminum alloy, a support frame is processed on a wheel rim of the outer wheel rim to support wheel legs, bending moment received when the wheel legs walk is reduced, a shaft hole is processed in the center of a spoke of the outer wheel rim and used for connecting an output shaft, and a key groove is further processed on the shaft hole and used for mounting keys to carry out power transmission.

The utility model discloses technical effect below having obtained for prior art.

The utility model discloses a but eccentric walking wheel based on planetary gear speed reduction, be applicable to paddy field soil. The speed reduction of wheel input power and output power can be realized through the planetary gear box, the eccentricity of an inner ring can be realized by the up-and-down movement of the inner ring driven by a hydraulic mechanism, the eccentricity of the inner ring drives a wheel leg mechanism which moves around the outer surface of the inner ring to move up and down to realize the eccentric movement of wheel legs, one wheel leg which is in contact with soil is extended outwards to form a leg type walking wheel, the wheel leg which is far away from the ground is retracted inwards, and the purpose of cleaning slime on the wheel leg is achieved. The utility model discloses a but eccentric walking wheel is applicable to soft ground such as paddy field soil, compares with ordinary walking wheel and can reduce the adhesion of soil on the wheel leg, has good trafficability characteristic.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of an overall assembly of an eccentric-type walking wheel.

Figure 2 shows a reduction and hydraulic mechanism.

FIG. 3 is a schematic view of a planetary gearbox.

Fig. 4 is a structural view of the wheel leg mechanism.

Fig. 5 is an overall assembly view of the two operating states.

Description of reference numerals: 1, outer wheel rings; 2 fixing the rim; 3, inner wheel ring; 4 wheel leg mechanism; 5 a speed reducing mechanism; 6, inner wheel cover; 7 fixing a wheel rim cover; 8, a hydraulic mechanism; 9 quick-change connector; 10 a flange connection; 11 a hexagonal bore bearing; 12, sealing rings; 13 rolling needles and supporting frames thereof; 14 an oil inlet hose; 15 an oil outlet hose; 16 quick-change connector; 17 a hydraulic push rod; 18 a support plate; 19 hydraulic cylinders; 20, a hydraulic cylinder base; 21 an output shaft; 22 a planetary gearbox; 23 positioning the bearing; 24 case covers; 25 a planet carrier; 26 planetary gear shafts; 27 planet wheels; 28 a sun gear; 29 a fixing frame; 30 annular gears; 31 a guide block; 32 sealing rings; 33 wheel legs; 34 a wheel leg shaft; 35 wheel leg rolling bearings; 36 eccentric walking wheel in eccentric state; 37 in concentric condition.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The utility model provides a but eccentric walking wheel based on planetary gear speed reduction, including reduction gears 5, hydraulic pressure mechanism 8, wheel leg mechanism 4 and wheel rim part, reduction gears 5 includes planetary gear box 22, output shaft 21 and be used for with ploughing quick-witted frame connection fixed flange connecting piece 10 a little, planetary gear box 22 includes case lid 24, sun gear 28, planet wheel 27, ring gear 30, planet carrier 25, hydraulic pressure mechanism 8 includes pneumatic cylinder base 20, pneumatic cylinder 19, the oil inlet and outlet, oil feed hose 14, oil outlet hose 15, quick-change coupler 16, hydraulic push rod 17 and backup pad 18, wheel leg mechanism 4 includes wheel leg 33, guide block 31, wheel leg axle 34 and wheel leg antifriction bearing 35, the wheel rim part includes outer wheel rim 1, fixed wheel rim 2, inner wheel rim 3, fixed wheel rim lid 7, inner wheel rim lid 6, outer wheel rim 1 rotates around output shaft 21 with fixed wheel rim 2 together.

A boss is processed at the shaft hole of the box cover 24 of the planetary gear box, a positioning bearing is installed on the inner side of the boss and used for being connected with the output shaft 21, a planetary gear shaft 26 is installed on the planetary gear 27 and moves circularly around the sun gear 28 along with the planetary gear 27, a shaft shoulder is processed at one end of the planetary gear shaft 26, an elastic retainer ring groove is processed at the other end of the planetary gear shaft 26 and used for installing an elastic retainer ring to limit the axial movement of the planetary gear 27, and the planetary gear shaft 26 and the planetary carrier; the shaft hole of the sun gear 28 is processed into a hexagonal hole shape to facilitate connection of the input shaft, the inner gear ring 30 and the right end cover of the planetary gear box are processed into a whole, one end of the inner side of the boss hole is provided with an elastic retainer ring for the hole through an elastic retainer ring groove, and the other end of the boss hole limits axial movement of the positioning bearing 23 through an inner boss of which the hole diameter is slightly smaller than the outer diameter of the positioning bearing 23.

The planet carrier 25 and the output shaft 21 are processed into a whole to increase the strength of the output shaft, the output shaft 21 is processed with a key groove and an elastic retainer groove, the key groove is provided with a key to transmit power with the outer wheel ring 1 and the fixed wheel ring 2, and the elastic retainer groove is provided with an elastic retainer to limit the axial freedom degree of the planet gear box cover 24, the outer wheel ring 1 and the fixed wheel ring 2.

The flange connecting piece 10 is connected with an inner gear ring 30 through a fixing frame 29, a hydraulic oil duct is processed in the flange connecting piece, a quick-change connector 9 is connected to a hydraulic oil port to be conveniently connected with an external hydraulic pump to control the inlet and outlet of hydraulic oil, a roller pin and a supporting frame 13 of the roller pin are further mounted on a shaft of the flange connecting piece 10 to support a fixed wheel ring cover 7, through holes in a circumferential array are processed at the outer end of the flange connecting piece 10 to be fixed with a micro-cultivator frame, a sealing ring groove is further processed at the outer end of the flange connecting piece 10 to be used for mounting a sealing ring 12 to play a sealing role, a hexagonal hole bearing 11 is mounted at a shaft hole of the flange connecting piece 10 to be connected with an input shaft, and the input.

The hydraulic cylinder base 20 and the planetary gear box 22 are fixed together through bolts and are provided with sealing bearings for sealing, the oil inlet and outlet ports are provided with a quick-change connector 16, the quick-change connector 16 is connected with an oil inlet hose 14 and an oil outlet hose 15, the oil inlet hose 14 and the oil outlet hose 15 are connected with a hydraulic oil duct inside the flange connector 10 through the quick-change connector, a hydraulic push rod 17 is connected on a hydraulic cylinder 19, the hydraulic push rod 17 is connected with a support plate 18 through bolts, the support plate 18 is processed into a cambered surface which is contacted with the inner wall of the inner ring 3 and is connected together, the inner ring 3 can be driven to move up and down through a hydraulic mechanism 8 to achieve the purpose of eccentricity, when the hydraulic push rod 17 is pushed outwards, the support plate 18 and the inner ring 3 which are fixedly connected with the hydraulic push rod are driven to move downwards to form an eccentric mechanism with the inner ring 3 relatively to be integrally eccentric, and one wheel, the wheel legs far away from the ground retract inwards to form a circular wheel surface and form an eccentric walking wheel 36 in an eccentric state, so that the purpose of cleaning the clay on the wheel legs is achieved; when the hydraulic push rod 17 retracts, the inner ring 3 fixedly connected with the hydraulic push rod is driven to move upwards to return to a concentric state, the wheel legs retract between the outer ring support frames to form a circular wheel surface, and an eccentric walking wheel 37 in the concentric state is formed.

Guide grooves are processed on two sides of the wheel leg 33, the guide block 31 is installed on the fixed rim 2, the lower end of the guide block is provided with the sealing ring 32 for sealing, the bottom end of the wheel leg 33 is processed with a shaft hole and is connected with the wheel leg shaft 34 through the shaft hole, and two ends of the wheel leg shaft 34 are connected with two wheel leg rolling bearings 35 as moving parts of the wheel leg mechanism 4; when the outer rim 1 and the fixed rim 2 rotate under the power of the output shaft 21, the guide blocks 31 connected and fixed with the fixed rim 2 move circularly along with the fixed rim 2, thereby driving the wheel legs 33 inside to move circularly, because the inner rim 3 is fixed, when the inner rim 3 is eccentric, the wheel leg mechanism 4 receives the supporting force of the inner rim 3 along the normal direction, when the distance between the rim surface of the inner rim 3 and the rim surface of the fixed rim 2 is smaller, the supporting force pushes the wheel leg mechanism 4 to move outwards, and the eccentric circular motion relative to the outer rim 1 is formed.

The wheel rim of the inner wheel ring 3 is provided with a groove as a sliding track of the wheel leg mechanism 4, a wheel leg retaining ring is arranged above the sliding track 4, the wheel leg retaining ring and the inner wheel ring 3 are processed into a whole, the inner wheel ring cover 6 is also provided with the wheel leg retaining ring for preventing the wheel leg mechanism 4 from being separated from the sliding track, a circle of rubber ring is arranged at the contact position of the wheel leg retaining ring and the wheel leg shaft bearing 35 for reducing the vibration generated during the movement of the walking wheel, and the shaft holes of the inner wheel ring 3 and the inner wheel ring cover 6 are processed into u-shaped holes as the guide of the up-and-down movement of the inner wheel.

The rim processing of fixed wheel rim 2 has square groove and screw hole, and survey processing in the rim has the plane of eight circular arrays for the guide block 31 of fixed mounting wheel leg mechanism 4, fixed wheel rim 2 and fixed wheel rim lid 7 pass through bolted connection together and install the sealing washer and play sealed effect, and processing has the keyway to be used for connecting output shaft 21 and carries out power transmission on the shaft hole of fixed wheel rim 2.

The outer wheel ring 1 is a circular wheel frame formed by processing aluminum alloy, a support frame is processed on a wheel rim of the outer wheel ring to support the wheel legs 33, bending moment received when the wheel legs 33 walk is reduced, a shaft hole is processed in the center of a spoke of the outer wheel ring 1 and used for being connected with the output shaft 21, and a key groove is further processed on the shaft hole and used for mounting a key to carry out power transmission.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. The utility model provides a but eccentric walking wheel based on planetary gear reduces speed which characterized in that: including reduction gears, hydraulic pressure mechanism, wheel leg mechanism and wheel rim part, reduction gears includes planetary gear case, output shaft and is used for following the flange joint spare of ploughing the machine frame connection fixed a little, planetary gear case includes case lid, sun gear, planet wheel, ring gear, planet carrier, hydraulic pressure mechanism includes pneumatic cylinder base, pneumatic cylinder, business turn over hydraulic fluid port, oil feed hose, the hose that produces oil, quick change coupler, hydraulic push rod and backup pad, wheel leg mechanism includes wheel leg, guide block, wheel leg axle and wheel leg antifriction bearing, the wheel rim part includes outer rim, fixed wheel rim, interior wheel rim, fixed wheel rim lid, interior wheel rim lid, the outer rim with fixed wheel rim rotates around the output shaft together.

2. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: a boss is processed at the axle hole of the box cover of the planetary gear box, a positioning bearing is installed on the inner side of the boss and used for being connected with an output shaft, a planetary wheel shaft is installed on the planetary wheel and performs circular motion around a sun wheel along with the planetary wheel, a shaft shoulder is processed at one end of the planetary wheel shaft, an elastic retainer ring groove is processed at the other end of the planetary wheel shaft and used for installing an elastic retainer ring to limit the axial motion of the planetary wheel, and the planetary wheel shaft and the planetary frame; the shaft hole of the sun gear is processed into a hexagonal hole shape to facilitate connection of the input shaft, and the inner gear ring and the right side end cover of the planetary gear box are processed into a whole.

3. A planetary gear reduction based eccentrical walking wheel according to claim 2, characterized in that: the planet carrier is integrated with the output shaft in a processing mode, a key groove and an elastic retainer ring groove are formed in the output shaft, a key is installed on the key groove, the outer wheel ring and the fixed wheel ring are used for power transmission, and the elastic retainer ring is installed on the elastic retainer ring groove to limit the axial freedom degree of the planet gear box cover, the outer wheel ring and the fixed wheel ring.

4. A planetary gear reduction based eccentrical walking wheel according to claim 2, characterized in that: one end of the inner side of the boss hole is provided with the elastic retainer ring for the hole through the elastic retainer ring groove, and the other end of the boss hole is slightly smaller than the outer diameter of the bearing and used for limiting the axial movement of the bearing through the inner boss.

5. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: the flange connecting piece passes through the mount and links together with the ring gear, and its inside processing has hydraulic pressure oil duct, the hydraulic oil road junction is connected with the quick change coupler and conveniently connects the business turn over of control hydraulic oil with external hydraulic pump, the epaxial kingpin that still installs of flange connecting piece and the support frame plays the supporting role to fixed wheel rim lid, the outer end processing of flange connecting piece has the through-hole of circumference array to be used for with ploughing the machine frame soon fixedly, and its outer end still processes has the seal ring groove to be used for installing the seal ring and play sealing role, the shaft hole department of flange connecting piece installs hexagonal hole bearing and is used for connecting the input shaft, and the input shaft passes to the sun gear and drives outer wheel circle and fixed wheel circle rotation after.

6. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: the hydraulic cylinder base is fixed with the planetary gear box together, the oil inlet and outlet are provided with quick-change connectors, the quick-change connectors are connected with oil inlet and outlet hoses, the oil inlet and outlet hoses are connected with the hydraulic oil duct of the flange connecting piece through the quick-change connectors, the hydraulic cylinder is connected with a hydraulic push rod, the hydraulic push rod is connected with a supporting plate through bolts, the supporting plate is processed into a cambered surface and is in contact with the inner wall of the inner ring and connected together, and the hydraulic mechanism can drive the fixed wheel ring to move up and down to achieve the eccentric purpose.

7. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: the wheel leg is characterized in that guide grooves are machined in two sides of the wheel leg, the guide block is installed on the fixed wheel ring, the lower end of the guide block is provided with the sealing ring to play a sealing role, the bottom end of the wheel leg is provided with a shaft hole in a machining mode and is connected with the wheel leg shaft through the shaft hole, and two ends of the wheel leg shaft are connected with two wheel leg rolling bearings to serve as moving parts of the wheel leg.

8. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: the wheel leg mechanism comprises an inner wheel ring and an outer wheel ring, wherein a groove is formed in the rim of the inner wheel ring and serves as a sliding track of the wheel leg mechanism, a wheel leg check ring is processed above the sliding track of the inner wheel ring, the wheel leg check ring and the inner wheel ring are processed into a whole, a wheel leg check ring is also processed on an inner wheel ring cover and is used for preventing the wheel leg mechanism from being separated from the sliding track, a circle of rubber ring is installed at the contact position of the wheel leg check ring and a wheel leg shaft bearing and is used for reducing vibration generated during walking wheel movement, and u-shaped holes are processed in the shaft holes of the inner wheel ring and the inner wheel ring cover.

9. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: the wheel leg mechanism is characterized in that a square groove and a threaded hole are formed in the rim of the fixed wheel rim, eight planes in circular arrays are formed in the inner side of the rim and used for fixedly mounting a guide block of the wheel leg mechanism, the fixed wheel rim and the fixed wheel rim cover are connected together through bolts and provided with a sealing ring to play a sealing role, and a key groove is formed in the shaft hole of the fixed wheel rim and used for connecting an output shaft.

10. An eccentrically drivable wheel as claimed in claim 1, based on a planetary gear reduction, characterized in that: the outer wheel rim is a circular wheel frame formed by processing aluminum alloy, a support frame is processed on a wheel rim of the outer wheel rim to support wheel legs, bending moment received when the wheel legs walk is reduced, a shaft hole is processed in the center of a spoke of the outer wheel rim and used for connecting an output shaft, and a key groove is further processed on the shaft hole and used for mounting keys to carry out power transmission.

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