CN114537044B - Novel steering drive axle - Google Patents
Novel steering drive axle Download PDFInfo
- Publication number
- CN114537044B CN114537044B CN202210275603.7A CN202210275603A CN114537044B CN 114537044 B CN114537044 B CN 114537044B CN 202210275603 A CN202210275603 A CN 202210275603A CN 114537044 B CN114537044 B CN 114537044B
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- China
- Prior art keywords
- outer end
- face
- brake
- hole
- axle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/121—Power-transmission from drive shaft to hub
- B60B35/122—Power-transmission from drive shaft to hub using gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a novel steering drive axle, which comprises an axle housing, wherein a convex cylindrical sleeve body part which extends outwards is formed in the middle of the outer end surface of a steering knuckle, a gear ring supporting plate is fixedly formed on the outer end surface of the convex cylindrical sleeve body part through a fixing bolt, at least two mortises are formed on the outer end surface of the convex cylindrical sleeve body part, at least two tenons are formed on the inner wall surface of the middle of the gear ring supporting plate, the tenons are inserted and sleeved in corresponding mortises, and the side walls of the tenons are tightly attached to the inner side walls of the corresponding mortises. The novel steering knuckle is designed to be integrated with a service brake and a parking brake, and a parking brake mechanism is not required to be arranged on a gearbox, so that the novel steering knuckle is compact in structure, greatly reduces manufacturing cost, is good in effect, is provided with a tenon formed on the inner wall surface of the middle part of a gear ring supporting plate through the outer end surface of the steering knuckle, is provided with a corresponding tenon formed on the inner wall surface of the middle part of the gear ring supporting plate, and is closely attached to the inner wall of the corresponding tenon, and therefore torque force transmission is achieved, and the transmission effect is good.
Description
Technical field:
the invention relates to the technical field of drive axle structures, in particular to a novel steering drive axle.
The background technology is as follows:
in the existing driving axle for engineering machinery, a wet brake is arranged in an axle shaft, a brake flange is arranged between an axle housing and the axle shaft, and a service brake piston is arranged in front of the brake flange and the axle shaft.
In addition, in the existing steering drive axle for engineering machinery, a steering mechanism is arranged, a steering knuckle is arranged at the outer end of an axle housing, a gear ring support plate is fixedly connected to the outer end face of the middle part of the steering knuckle through bolts, and when torque force is transmitted, the gear ring support plate transmits the torque force to the steering knuckle through bolts;
when the bolts are fixed, the connecting screw holes and the connecting through holes are all provided with gaps, when the bolts are deflected in a transmission way, only part of the screw rod parts of the bolts are clung to the corresponding connecting screw holes and the inner side walls of the connecting through holes or the wall surfaces of the inner tooth parts, so that the torque transmission is realized, and some bolts are not stressed, the effect of transmitting the force of the bolts is limited, and the stressed bolts are easy to deform.
As shown in fig. 1, the existing outer half shaft and the planet carrier are not connected and supported, and the stability is poor when the outer half shaft runs.
Moreover, be fixed with the steering cylinder on the bottom back wall of axle housing, the middle part of steering cylinder is equipped with horizontal catch bar, the both ends of horizontal catch bar stretch out the both ends of steering cylinder, and swing joint has the steering arm, the other end swing joint of steering arm is on the knuckle of transaxle, move about through the horizontal catch bar of steering cylinder, can realize that two knuckles rotate, thereby change the position of wheel, realize turning, and because horizontal lateral movement of horizontal catch bar does not have positioner, after its knuckle turns to, when needing the return, outside can only judge whether its position returns through the wheel hub that knuckle department was installed returns, its effect is poor, especially for novice often need observe the wheel hub just can judge the wheel hub return from the car.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art and provide a novel steering drive axle, which is characterized in that a driving brake and a parking brake are integrally designed, a parking brake mechanism is not required to be arranged on a gearbox, so that the structure is compact, the manufacturing cost is greatly reduced, the effect is good, a tenon is formed on the inner wall surface of the middle part of a gear ring supporting plate through a tenon groove formed on the outer end surface of a steering knuckle, the tenon is inserted into a corresponding tenon groove, the side wall of the tenon is tightly attached to the inner wall of the corresponding tenon groove, thereby realizing torque force transmission, the transmission effect is good, the torsional strength is high, the deformation is not easy, in the steering process realized through the lateral movement of a transverse oil cylinder push rod, the return of the steering knuckle can be judged, the return of the steering knuckle can be known without manually observing a hub, and the operation is convenient.
The scheme for solving the technical problems is as follows:
the novel steering drive axle comprises an axle housing, wherein bearing seat flanges are respectively fixed on the left end face and the right end face of the axle housing, a brake flange is fixed on the outer end face of the bearing seat flange, an inner connecting part of an axle shaft is fixed at the outer end of the brake flange, a differential housing is hinged to the middle part of the bearing seat flange through a bearing, a half shaft gear is arranged in the differential housing, a spline shaft part of a half shaft is inserted into a middle spline through hole of the half shaft gear, an installation cavity is formed in the middle part of the inner end face of the inner connecting part of the axle shaft, a wet brake is arranged in the installation cavity, the wet brake is arranged at the outer side of the brake flange, and a middle spline shaft of the half shaft is inserted into a center spline through hole of the wet brake; the outer end of the half shaft is connected with an outer half shaft through a duplex universal joint, a steering knuckle is mounted on the outer half shaft, a convex cylindrical sleeve body part extending outwards is formed in the middle of the outer end face of the steering knuckle, a gear ring supporting plate is fixedly formed on the outer end face of the convex cylindrical sleeve body part through a fixing bolt, at least two mortises are formed on the outer end face of the convex cylindrical sleeve body part, at least two tenons are formed on the inner wall face of the middle of the gear ring supporting plate, the tenons are inserted and sleeved in corresponding mortises, and the side walls of the tenons are tightly attached to the inner side walls of the corresponding mortises;
the middle part of the brake flange is provided with a parking brake piston, the outer end surface of the parking brake piston faces the friction plate of the wet brake, a parking main brake piston is arranged between the bearing seat flange and the brake flange, the middle part of the outer end surface of the parking main brake piston is provided with a pushing sleeve body part extending outwards, and the outer end surface of the pushing sleeve body part is pressed against the inner end surface of the parking brake piston; a plurality of braking springs are arranged between the outer end face of the bearing seat flange and the parking main braking piston, and one end of each braking spring is applied to the bearing seat flange, and the other end of each braking spring is applied to the parking main braking piston.
The outer end face of the bearing seat flange is provided with an annular mounting groove in a forming mode, an annular spring seat is nested in the annular mounting groove, a plurality of concave holes are formed in the outer end face of the annular spring seat, an annular groove is formed in the inner end face of the parking main brake piston in a forming mode, a plurality of brake springs are inserted into the annular groove and the corresponding concave holes in a sleeving mode, one ends of the brake springs are applied to the inner end face of the annular groove, and the other ends of the brake springs are applied to the inner end face of the corresponding concave holes.
The middle part shaping of stopper flange has the ladder through-hole, and the ladder through-hole is including the outer end hole section that is in the outer end, be in the middle part the intermediate hole section and be in the inside hole section of inner, and the diameter of outer end hole section is greater than the intermediate hole section, and the diameter of intermediate hole section is greater than inside hole section, and outer end hole section, intermediate hole section and inside hole Duan Junxiang are led to, and parking brake piston plug bush has the ladder bellying on the lateral wall of parking brake piston in outer end hole section and intermediate hole section, and the ladder bellying cooperatees with the ladder through-hole.
The inner end face side portion of the inner connecting portion of the axle shaft is provided with a plurality of unlocking screw connecting through holes which extend inwards and transversely, the inner ends of the unlocking screw connecting through holes extend out of the inner end face of the mounting cavity, the screw portions of the unlocking bolts are screwed into the corresponding unlocking screw connecting through holes, the pushing rod portions formed at the inner ends of the screw portions of the unlocking bolts extend out of the inner end face of the unlocking screw connecting through holes and extend into the mounting cavity, the end portions of the pushing rod portions of the unlocking bolts are inserted into the corresponding small-diameter hole sections of the outer end face side portions of the brake flange, unlocking sliding pins are inserted into the large-diameter hole sections of the inner ends of the step pushing holes, and the inner ends of the unlocking sliding pins face the outer end face side portions of the brake pistons of the parking car owners.
The outer end of the screw rod part of the unlocking bolt is positioned at the outer side of the outer end face of the inner connecting part of the axle shaft, a limiting locking sleeve is sleeved on the screw rod part of the unlocking bolt, and the limiting locking sleeve is clamped between the rotating part of the unlocking bolt and the outer end face of the inner connecting part of the axle shaft.
The outer side wall of the convex cylindrical sleeve body of the steering knuckle is movably connected with a hub through a bearing, the outer end face edge of the hub is fixedly connected with a planet carrier through a bolt, the middle inner wall face of the outer end plate of the planet carrier is fixedly provided with an outer ring of a first bearing, and the outer end of an outer half shaft installed in the steering knuckle extends out of a central through hole of the convex cylindrical sleeve body and a middle through hole of a gear ring supporting plate and is fixed on an inner ring of the first bearing.
A steering cylinder shell is fixed at the rear of the lower part of the axle housing, a transverse cylinder push rod is arranged in the middle of the steering cylinder shell, the left end and the right end of the transverse cylinder push rod extend out of the left end and the right end of the steering cylinder shell, the end part of the transverse cylinder push rod is connected with one end of a rotating arm, and the other end of the rotating arm is movably connected with the connecting part of the steering knuckle through a hinge shaft;
the left or right outer side wall of the transverse oil cylinder push rod is provided with a sensor induction ring, the left or right part of the steering oil cylinder shell is provided with a sensor, and the induction end of the sensor corresponds to the sensor induction ring.
The invention has the outstanding effects that:
1. simultaneously, when parking, the brake spring is used for enabling the pushing sleeve body of the parking main brake piston to be pressed against the inner end face of the parking brake piston, the parking brake piston is moved to compress the friction plate of the wet brake to realize parking brake, the parking brake and parking brake are designed into an integrated mode, and a parking brake mechanism is not required to be arranged on a gearbox, so that the structure is compact, the manufacturing cost is greatly reduced, and the effect is good.
2. When the parking brake is locked, the parking main brake piston cannot return, so that the parking main brake piston cannot be released, after the limiting locking sleeve is detached from the unlocking bolt, the unlocking bolt is rotated, so that the unlocking sliding pin is pushed inwards, the inner end face of the unlocking sliding pin is pressed against the edge of the outer end face of the parking main brake piston, the parking main brake piston is moved inwards, the parking main brake piston is not pressed against the inner end face of the parking brake piston any more, the parking brake piston can return, the friction plate of the wet brake is not pressed, and the vehicle is movable.
3. The outer end face of the steering knuckle is provided with the mortises, the inner wall face of the middle part of the gear ring supporting plate is provided with the tenons, the tenons are inserted into the corresponding mortises, and the side walls of the tenons are tightly attached to the inner side walls of the corresponding mortises, so that torque force transmission is realized, the transmission effect is good, the torsional strength is high, and the deformation is not easy to happen; the outer half shaft is connected with the planet wheel carrier through the first bearing, so that the outer half shaft operates more stably.
4. The tenon and the tenon groove are adopted for connection, so that the processing precision requirements of the connecting screw connection hole of the protruding cylinder sleeve body and the connecting through hole of the gear ring supporting plate can be reduced, only the fixing bolt is needed for fixing the protruding cylinder sleeve body and the gear ring supporting plate, the fixing bolt basically does not need to bear torsion, the deformation of the fixing bolt is reduced, and the service life of the fixing bolt is ensured.
5. In the steering process of the horizontal oil cylinder push rod moving left and right, the sensing end of the sensor is close to the sensor sensing ring to sense, the return of the steering knuckle can be judged, the return of the steering knuckle can be known without manually observing the hub, and the effect is good.
Description of the drawings:
FIG. 1 is a schematic view of a partial structure at a prior art knuckle;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is an enlarged view of a portion of the present invention;
FIG. 4 is a schematic view of the partial structure at a knuckle of the present invention;
FIG. 5 is a schematic view of a partial structure between a ring gear support plate and a knuckle;
FIG. 6 is a schematic view of the angle change structure of FIG. 5;
FIG. 7 is a schematic view of a partial structure at a ram of a lateral ram;
FIG. 8 is a schematic view of a partial structure of a steering cylinder housing;
fig. 9 is a partial enlarged view of fig. 8.
The specific embodiment is as follows:
2-9, a novel steering drive axle comprises an axle housing 10, bearing seat flanges 40 are fixed on the left end face and the right end face of the axle housing 10, sealing rings are clamped between the end faces of the bearing seat flanges 40 and the left end face or the right end face of the axle housing 20, a brake flange 50 is fixed on the outer end face of the bearing seat flanges 40, an inner connecting part of the axle shaft 60 is fixed on the outer end of the brake flange 50, a sealing ring is clamped between the outer end face of the brake flange 50 and the end face of the inner connecting part of the axle shaft 60, a differential case is hinged to the middle part of the bearing seat flanges 40 through bearings, a half shaft gear 70 is mounted in the differential case, a spline shaft part of a half shaft 80 is inserted in a middle spline through hole of the half shaft gear 70, the spline shaft part of the half shaft 80 is matched with a spline groove of the middle spline through hole of the half shaft gear 70, 80 is inserted in a step through hole 51 of the bearing seat flange 50, the brake flange 40 and the middle through hole of the axle shaft 60, a mounting cavity is formed in the middle part of the inner end face of the inner connecting part of the axle shaft 60, a wet brake 100 is positioned in the middle part of the wet brake 100, and the wet brake 100 is positioned in the middle part of the middle spline cavity of the wet brake 100; the axle shaft 80 is inserted into the axle shaft 60, the outer end of the axle shaft 80 is connected with an outer axle shaft 82 through a duplex universal joint, a steering knuckle 32 is arranged on the outer axle shaft 82, the outer part of the axle shaft 80 is movably connected to the outer inner side wall of the axle shaft 60 through a sliding bearing, and the outer axle shaft 82 is movably connected to the inner side wall of a central through hole of the steering knuckle 32 through the sliding bearing;
the gear ring support plate 33 is positioned at the outer side of the steering knuckle 32, a convex cylindrical sleeve body 322 which extends outwards is formed in the middle of the outer end surface of the steering knuckle 32, a central through hole of the steering knuckle 32 extends outwards to extend out of the outer end surface of the convex cylindrical sleeve body 322, at least two mortises 323 are formed in the outer end surface of the convex cylindrical sleeve body 322, at least two tenons 331 are formed in the inner wall surface of the middle of the gear ring support plate 33, the tenons 331 are inserted in the corresponding mortises 323, and the side walls of the tenons 331 are tightly attached to the inner walls of the corresponding mortises 323;
the intermediate inner wall surface of the ring gear support plate 33 is pressed against the outer end surface of the convex cylindrical sleeve body 322 of the knuckle 32 and is fixedly connected by the fixing bolt 34.
Further, the outer end surface of the protruding cylindrical sleeve body 322 is formed with two mortises 323 corresponding up and down or corresponding left and right, and the two mortises 323 are in through hole with the central through hole of the protruding cylindrical sleeve body 322;
two tenons 331 are formed on the inner wall surface of the middle part of the gear ring supporting plate 33.
Further, a plurality of connection screw holes are formed on the outer end surface of the protruding cylindrical sleeve body 322, a plurality of connection through holes 332 are formed on the inner wall surface of the middle part of the gear ring supporting plate 33, the connection through holes 332 correspond to and align with the corresponding connection screw holes, the screw parts of the fixing bolts 34 are inserted into the corresponding connection through holes 332, and the rotating parts of the fixing bolts 34 are pressed against the outer wall surface of the retainer ring 35 mounted on the outer end surface of the gear ring supporting plate 33; the retainer ring 35 is inserted into a placing groove formed on the outer end surface of the middle part of the gear ring supporting plate 33;
the retainer ring 35 is clamped between the inner end surface of the placement groove of the ring gear support plate 33 and the rotating portion of the fixing bolt 34.
Further, the outer side wall of the protruding cylindrical sleeve body 322 of the steering knuckle 32 is movably connected with a hub 36 through a bearing, the outer end surface edge of the hub 36 is fixedly connected with a planet carrier 37 through a bolt, the middle inner wall surface of the outer end plate of the planet carrier 37 is fixedly provided with a mounting groove, a first bearing 371 is inserted in the mounting groove, the outer wall surface of the outer ring of the first bearing 371 is pressed against the inner side wall of the mounting groove, the outer end of an outer half shaft 81 extends out of the central through hole of the protruding cylindrical sleeve body 322 and the middle through hole of the gear ring supporting plate 33 and is fixed on the inner ring of the first bearing 371, and by adopting the structure, the outer end of the outer half shaft 81 is supported during transmission, so that the outer half shaft operates more stably and has good effect; the inner wall surface of the outer end plate of the planet carrier 37 is formed or fixed with a connecting shaft, a pinion is movably connected to the connecting shaft through a needle bearing, the pinion is meshed with an external gear on the outer side wall of the outer end of the outer half shaft 81, an inner gear sleeve is inserted into the planet carrier 37, an internal gear part of the inner gear sleeve is meshed with the pinion, an external gear formed on the outer side wall of the gear ring supporting plate 33 is meshed with and matched with an internal gear part of the inner gear sleeve (the arrangement of the pinion, the inner gear sleeve and other structures in the planet carrier 37 is a common structure, and the power transmission is that the half shaft 80 drives the outer half shaft 81 to rotate, the outer half shaft 81 drives the pinion to rotate, the pinion drives the inner gear sleeve to operate, and the inner gear sleeve and the gear ring supporting plate 33 simultaneously rotate, so that the hub 36 is driven to rotate, and the operation is realized.
In this embodiment, two mortises 323 are formed on the outer end surface of the protruding cylindrical sleeve body 322, two tenons 331 are formed on the inner wall surface of the middle part of the gear ring supporting plate 33, the tenons 331 are inserted into the corresponding mortises 323, the side walls of the tenons 331 are tightly attached to the inner walls of the corresponding mortises 323, so that the gear ring supporting plate 33 transmits torsion to the mortises 323, namely the protruding cylindrical sleeve body 322, through the tenons 331, the transmission effect is good, the torsion resistance is high, and the gear ring supporting plate is not easy to deform;
and the middle inner wall surface of the gear ring support plate 33 is pressed against the outer end surface of the convex cylindrical sleeve body 322 of the knuckle 32 and is fixedly connected through the fixing bolt 34, and the fixing bolt 34 mainly has the function of realizing the connection and fixation between the gear ring support plate 33 and the outer end surface of the convex cylindrical sleeve body 322 of the knuckle 32, so that the fixing bolt 34 basically does not need to bear torsion, the deformation of the fixing bolt is reduced, and the service life of the fixing bolt is ensured.
A stepped through hole 51 is formed in the middle of the brake flange 50, a parking brake piston 90 is inserted and sleeved in a hole section at the outer side of the stepped through hole 51, the outer end face of the parking brake piston 90 faces the friction plate of the wet brake 100, a parking main brake piston 200 is arranged between the bearing seat flange 40 and the brake flange 50, an annular extension part 52 extending towards the bearing seat flange 40 is formed at the outer side edge part of the inner end of the brake flange 50, a sealing ring is clamped between the end face of the annular extension part 52 and the outer end face of the corresponding bearing seat flange 40, the parking main brake piston 200 is positioned in the annular extension part 52, the outer side wall of the parking main brake piston 200 is close to or clings to the inner side wall of the annular extension part 52, an annular groove is formed on the outer side wall of the parking main brake piston 200, the sealing ring is nested in the annular groove, and the sealing ring is pressed against the inner side wall of the annular extension part 52; the middle part of the outer end surface of the parking main brake piston 200 is formed with an outwardly extending pushing sleeve body 201, the pushing sleeve body 201 is inserted and sleeved at the inner end of the stepped through hole 51, and the outer end surface of the pushing sleeve body 201 is pressed against the inner end surface of the parking brake piston 90;
the half shaft 80 is inserted in the central through holes of the parking brake piston 200 and the parking brake piston 90.
A plurality of brake springs 1 are arranged between the outer end surface of the bearing seat flange 40 and the parking main brake piston 200, one end of each brake spring 1 is applied to the bearing seat flange 40, and the other end is applied to the parking main brake piston 200.
Further, the edge of the outer end surface of the bearing seat flange 40 is formed with an annular mounting groove, an annular spring seat is nested in the annular mounting groove, the inner end surface of the annular spring seat is pressed against the inner end surface of the annular mounting groove, a plurality of concave holes are formed in the outer end surface of the annular spring seat, an annular groove is formed in the edge of the inner end surface of the parking main brake piston 200, a plurality of brake springs 1 are inserted into the annular groove and the corresponding concave holes, one end of each brake spring 1 is applied to the inner end surface of the annular groove, and the other end of each brake spring 1 is applied to the inner end surface of the corresponding concave hole.
Further, the stepped through hole 51 includes an outer end hole section 511 at the outer end, a middle hole section 512 at the middle and an inner hole section 513 at the inner end, the outer end hole section 511 has a larger diameter than the middle hole section 512, the middle hole section 512 has a larger diameter than the inner hole section 513, the outer end hole section 511, the middle hole section 512 and the inner hole section 513 are all communicated, the parking brake piston 90 is inserted into the outer end hole section 511 and the middle hole section 512, the outer side wall of the parking brake piston 90 is formed with a stepped protruding portion, the pushing sleeve body 201 is inserted into the inner hole section 513, a sealing ring is nested in an annular groove formed in the inner side wall of the inner hole section 513, the sealing ring is pressed against the outer side wall of the pushing sleeve body 201, and the outer side wall of the pushing sleeve body 201 is close to or clung to the inner side wall of the inner hole section 513.
The stepped bulge comprises a first outer annular bulge and a second outer annular bulge which are formed on the outer side wall of the parking brake piston 90 and the middle part, the outer diameter of the second outer annular bulge is smaller than that of the first outer annular bulge, the second outer annular bulge is positioned on the inner side of the first outer annular bulge, the inner end of the parking brake piston 90 is inserted and sleeved in the middle hole section 512, the inner end surface of the parking brake piston 90 is pressed against the inner end surface of the middle hole section 512, the inner outer end outer side wall of the parking brake piston 90 is tightly attached to the inner side wall of the middle hole section 512, an annular groove is formed on the inner side wall of the middle hole section 512, the first sealing ring is nested in the annular groove, the first sealing ring is pressed against the inner end outer side wall of the parking brake piston 90, the second outer annular bulge is inserted and sleeved in the outer end hole section 511, the second sealing ring is nested in the annular groove formed on the inner side wall of the outer end section 511, the second sealing ring is pressed against the outer side wall of the second outer annular bulge, the outer end of the parking brake piston 90 extends out of the outer end of the through hole section 51, and the first outer end surface of the parking brake piston 90 faces the outer end surface of the parking brake piston 90. An oil cavity 8 is formed between the outer side wall of the parking brake piston 90 between the first seal groove and the second seal groove and the inner side wall of the stepped through hole 51.
Further, an inner groove 91 is formed in the middle of the outer end surface of the parking brake piston 90, a plurality of mounting through holes 92 and mounting step through holes 93 are formed on the edge end surface of the inner groove 91, and all the mounting through holes 92 and the mounting step through holes 93 are alternately arranged on the edge end surface of the inner groove 91 with the central axis of the parking brake piston 90 as the center, namely, one mounting through hole 92 is arranged between every two adjacent mounting step through holes 93;
the diameter of the outer end hole section of the installation stepped through hole 93 is larger than that of the inner end hole section, the screw rod part of the first fixing bolt 2 is inserted into the installation stepped through hole 93, the inner end of the screw rod part of the first fixing bolt 2 extends out of the installation stepped through hole 93 and is in threaded connection with the inner end surface of the middle hole section 512, the brake return spring 3 is inserted into the outer end hole section of the installation stepped through hole 93, one end of the brake return spring 3 is applied to the inner end surface of the outer end hole section of the installation stepped through hole 93, and the other end of the brake return spring 3 is applied to the inner end surface of the rotating part of the first fixing bolt 2.
Further, the self-adjusting sleeve body 4 is inserted in the installation through hole 92, the outer side wall of the self-adjusting sleeve body 4 is clamped on the inner side wall of the installation through hole 92, the rod body of the second fixing bolt 5 is inserted in the self-adjusting sleeve body 4, the end screw connection part of the rod body of the second fixing bolt 5 extends out of the installation through hole 92 and is screw-connected to the inner end surface of the middle hole section 512, and an adjusting gap 6 is formed between the inner end surface of the rotating part of the second fixing bolt 5 and the outer end surface of the self-adjusting sleeve body 4.
The turning parts of the first fixing bolt 2 and the second fixing bolt 5 are in the inner groove 91.
Further, a plurality of unlocking screw through holes 61 extending transversely inwards are formed at the edge of the outer end face of the inner connecting portion of the axle shaft 60, the inner ends of the unlocking screw through holes 61 extend out of the inner end face of the mounting cavity, the screw portions of the unlocking bolts 62 are screwed into the corresponding unlocking screw through holes 61, the pushing rod portions formed at the inner ends of the screw portions of the unlocking bolts 62 extend out of the inner end face of the unlocking screw through holes 61 and extend into the mounting cavity, the end portions of the pushing rod portions of the unlocking bolts 62 are inserted into the small-diameter hole sections of the outer end face edge portions of the corresponding stepped pushing through holes 53 formed at the outer end face edge portions of the brake flange 50, unlocking sliding pins 54 are inserted into the large-diameter hole sections of the inner ends of the stepped pushing holes 53, the end faces of the pushing rod portions of the unlocking bolts 62 are pressed against the outer end faces of the unlocking sliding pins 54, the inner end faces of the stepped pushing holes 53 are leveled with the inner end faces of the stepped pushing holes 53, and the inner ends of the unlocking sliding pins 54 face faces face the outer end faces of the parking brake pistons 200;
an annular groove is formed in the outer side wall of the unlocking sliding pin 54, a sealing ring is nested in the annular groove, and the sealing ring is pressed against the inner side wall of the large-diameter hole section at the inner end of the stepped pushing hole 53.
Further, the outer end of the screw portion of the unlocking bolt 62 is located at the outer side of the outer end surface of the inner connecting portion of the axle shaft 60, and a limit locking sleeve 7 is sleeved on the outer end surface of the screw portion, and the limit locking sleeve 7 is clamped between the rotating portion of the unlocking bolt 62 and the outer end surface of the inner connecting portion of the axle shaft 60. The length of the limit lock sleeve 7 is larger than the interval between the inner end surface of the unlocking slide pin 54 and the outer end surface of the parking main brake piston 200. When the unlocking sliding pin 54 moves inwards, the unlocking sliding pin 54 is positioned in the inner end large-diameter hole section of the stepped pushing hole 53 when moving inwards by a maximum distance, so that the sealing ring is prevented from falling off, and the subsequent sealing effect is influenced.
Further, the friction between the outer side wall of the self-adjusting sleeve body 4 and the inner side wall of the mounting through hole 92 is larger than the elastic restoring force of the brake return spring 3.
A steering cylinder shell 20 is fixed at the rear of the lower part of the axle housing 10, a transverse cylinder push rod 30 is arranged in the middle of the steering cylinder shell 20, the left end and the right end of the transverse cylinder push rod 30 extend out of the left end and the right end of the steering cylinder shell 20, the end part of the transverse cylinder push rod 30 is connected with one end of a rotating arm 31, and the other end of the rotating arm 31 is movably connected with a connecting part 321 of a steering knuckle 32 through a hinge shaft;
the outer side wall of the left part or the right part of the transverse cylinder push rod 30 is provided with a sensor induction ring 33, the left part or the right part of the steering cylinder shell 20 is provided with a sensor 34, and the induction end of the sensor 34 corresponds to the sensor induction ring 33.
Further, the steering cylinder housing 20 includes a middle main housing 21, a left end connecting cover 22 and a right end connecting cover 23, the left end connecting cover 22 is clamped in the left end of the middle main housing 21, the right end connecting cover 23 is clamped in the right end of the middle main housing 21, a plurality of annular grooves are formed on the outer side wall of the right part of the left end connecting cover 22, a plurality of annular grooves are formed on the outer side wall of the left part of the right end connecting cover 23, a sealing ring is nested in the corresponding annular groove, and the outer wall surface of the sealing ring is pressed against the inner side wall of the middle main housing 21;
the middle parts of the left end connecting cover 22 and the right end connecting cover 23 are formed with left and right through holes 24, a transverse oil cylinder push rod 30 is inserted in the middle main shell 21 and the two through holes 24, two ends of the transverse oil cylinder push rod 30 extend out of the outer ends of the two through holes 24, the inner side wall of the through hole 24 is formed with a plurality of inner annular grooves, an inner sealing ring is nested in the inner annular groove, and the inner wall surface of the inner sealing ring is pressed against the outer side wall of the transverse oil cylinder push rod 30;
a piston block is clamped on the outer side wall of the middle part of the transverse oil cylinder push rod 30, a plurality of outer annular grooves are formed on the outer side wall of the piston block, a main sealing ring is nested in the outer annular groove, and the outer wall surface of the main sealing ring is pressed against the inner side wall of the middle main shell 21;
annular clamping grooves are formed in the inner side walls of the left end and the right end of the middle main shell 21, and the inner wall surfaces of the two annular clamping grooves, which are close to one side, are conical wall surfaces which extend oppositely and extend obliquely to the central axis of the middle main shell 21;
the right outer side wall of the right end connecting cover 23 is provided with an annular groove in a molding way, and the positioning ring is clamped in the annular clamping groove at the right ends of the annular groove and the middle main shell 21;
the middle part lateral wall shaping of left end junction cover 23 has left installation ring channel, and left locating ring card is put in the annular card of left installation ring channel and middle part main casing 21 left end department put the groove, has put the snap ring in the draw-in groove of shaping on the left end lateral wall of left end junction cover 23, and the right-hand member face of snap ring presses on the left end face of middle part main casing 21, realizes fixedly.
Further, an extending portion 231 extending radially outwards is formed on the outer side wall of the right end connecting cover 23, the left end face of the extending portion 231 is pressed against the right end face of the middle main housing 21, an induction through hole 232 extending inwards is formed on the outer side wall of the extending portion 231, the induction through hole 232 is communicated with the corresponding central through hole 24, a sensor 34 is fixed on the extending portion 231, the induction end of the sensor 34 extends into the induction through hole 232, the end portion of the induction end of the sensor 34 is close to the outer side wall of the transverse cylinder push rod 30, a sensor induction ring 33 is arranged on the right portion of the transverse cylinder push rod 30, and the induction end of the sensor 34 corresponds to the sensor induction ring 33.
Further, an annular groove is formed on the outer side wall of the right portion of the lateral cylinder push rod 30, the sensor sensing ring 33 is nested in the annular groove, the outer side wall of the sensor sensing ring 33 is flat with the outer side wall of the lateral cylinder push rod 30, the outer wall surface of the sensor sensing ring 33 is a matte surface, the rest outer wall surfaces of the lateral cylinder push rod 30 are polished surfaces, and the reflection degree of the outer wall surface of the sensor sensing ring 33 is lower than the reflection degree of the outer wall surface of the lateral cylinder push rod 30.
Alternatively, polishing may be directly performed on the outer side wall of the right portion of the transverse cylinder push rod 30, and a sensor sensing ring 33 with a matte surface is formed on the outer side wall of the right portion of the transverse cylinder push rod 30, and the reflectivity is lower than the reflectivity of the rest outer wall surfaces of the transverse cylinder push rod 30, and the polishing may be performed by performing wire drawing processing on the outer side wall of the right portion of the transverse cylinder push rod 30 after the whole polishing of the transverse cylinder push rod 30 to form the sensor sensing ring 33 with a matte surface.
In this embodiment, the steering cylinder housing 20 is provided with a transverse cylinder push rod 30 at the middle thereof to move transversely to drive a corresponding rotating arm 31 to move, so as to realize steering of two steering knuckles 32.
The sensor 34 used in this embodiment is a photoelectric sensor, which irradiates light onto the horizontal cylinder push rod 30, then, the reflected light returns to the sensor 34, and the light signal is received by the receiving end inside the sensor, when the received light signal reaches the sensing amount, it indicates that the sensor sensing ring 33 of the horizontal cylinder push rod 30 is not sensed, the position of the horizontal cylinder push rod 30 is not moved to the initial position, and the hub of the knuckle 32 is not returned to the original position;
when the sensing end of the sensor 34 is close to the outer wall surface of the sensor sensing ring 33, at this time, the outer wall surface of the sensor sensing ring 33 is a sub-smooth surface, the reflection effect is poor, at this time, the sensor 34 senses no reflected light, at this time, the sensing signal is transmitted to the control host (the sensor 34 is electrically connected with the control host through an electrical connection wire), the control host obtains the signal and displays the signal on the display screen of the vehicle (the display screen is connected with the control host through the electrical connection wire), the knuckle 32 at this time is indicated to be reset and aligned, the position of the transverse cylinder push rod 30 at this time is at the initial position, at this time, whether the hub is aligned and returned or not is observed manually, and the use effect is good.
The wet brake 100 includes a connecting sleeve body, an outer spline groove is formed on an outer sidewall of the connecting sleeve body, an inner spline groove is formed on an inner sidewall of the connecting sleeve body, a middle spline shaft of the half shaft 80 is inserted in the connecting sleeve body, an outer spline protrusion of the middle spline shaft of the half shaft 80 is matched with the inner spline groove of the connecting sleeve body, a plurality of driven friction plates and driving friction plates are inserted in the connecting sleeve body, all the driven friction plates and the driving friction plates are alternately arranged, spline through holes are formed in the middle parts of the driven friction plates and the driving friction plates, the connecting sleeve body is inserted in the spline through holes of all the driven friction plates and the driving friction plates, and the spline protrusions of the spline through holes of the driven friction plates and the driving friction plates are matched with the outer spline groove, and the wet brake 100 is of a known structure in the prior art, and therefore, details are not given.
In this embodiment, the brake flange 50 is provided with an oil passage through hole, and the oil passage through hole is communicated with the oil cavity 8, which is of a common structure, so the oil passage through hole is not shown in the drawing;
when the hydraulic braking device is used, when braking is needed in the driving process, hydraulic oil outside the hydraulic braking device enters the oil cavity 8, so that the brake return spring 3 is compressed, the outer end face of the parking brake piston 90 moves outwards and presses against the end face of the driving friction plate at the rightmost end of the wet brake 100, and all the driving friction plates and the driven friction plates are pressed against each other along with the continuous outward movement of the parking brake piston 90 to realize braking, and the half shaft 80 cannot rotate to realize driving braking;
when the travelling mechanism of the engineering machinery needs to park, the hydraulic system stops running, at the moment, the oil in the oil cavity 8 returns back, the oil introduced into the space between the brake flange 50 and the parking main brake piston 200 also returns, at the moment, the outer end face of the pushing sleeve body 201 of the parking main brake piston 200 is pressed against the inner end face of the parking brake piston 90 through the elastic action of all brake springs 1, the outer end face of the parking brake piston 90 moves outwards and presses against the end face of the driving friction plate at the rightmost end of the wet brake 100, and along with the continuous outwards movement of the parking brake piston 90, all the driving friction plates and the driven friction plates press against each other to realize automatic braking, so that the parking brake is realized, and the manual parking mechanism and the like are not required to be arranged on a gearbox.
When the vehicle starts to run after stopping braking in the running process, the vehicle runs through the oil in the oil cavity 8 and returns through the braking return spring 3, so that the parking brake piston 90 is retracted, and the running can be realized;
when the parking brake needs to be released, after oil is introduced into the space between the brake flange 50 and the parking main brake piston 200 (the brake flange 50 is also connected with a hydraulic oil passage through hole, which is a common structure and is not described in detail in the drawings), all brake springs 1 are contracted, so that the parking main brake piston 200 moves inwards and is not pressed against the parking brake piston 90, and the parking brake piston 90 returns through the brake return spring 3 and is not pressed against the end surface of the active friction plate at the rightmost end of the wet brake 100, so that the wet brake 100 is not locked, and can rotate along with the half shaft 80, power transmission is realized, and driving is realized.
When the parking brake cannot be unlocked, namely oil cannot enter the space between the brake flange 50 and the parking main brake piston 200, after the outer end face of the pushing sleeve body 201 of the parking main brake piston 200 is pressed against the inner end face of the parking brake piston 90, and cannot move inwards, the unlocking bolt 62 can be disassembled, the limit locking sleeve 7 is disassembled, then the unlocking bolt 62 is screwed into the unlocking screw through hole 61 and gradually stretches into the unlocking screw through hole, the end part of the pushing rod part of the unlocking bolt 62 pushes the unlocking sliding pin 54 to move inwards and press against the outer end face edge part of the parking main brake piston 200 to push inwards, so that the brake spring 1 is compressed, at the moment, the return force of the brake return spring 3 is utilized to realize the return of the parking brake piston 90, the parking brake piston is not pressed against the wet brake 100, the release of the wet brake 100 is realized, the vehicle is not locked any more, and the movement of the vehicle can be realized, and the subsequent maintenance and the vehicle is convenient;
in this embodiment, after the wet brake 100 is used for a long time, the driven friction plate and the driving friction plate of the wet brake 100 are worn and thinned, at this time, the stroke of the parking brake piston 90 for locking and moving outwards is increased, the parking brake time is increased, and even when the distance is too large, the parking brake cannot be performed;
in this embodiment, the self-adjusting sleeve body 4 is added, when in use, after oil is introduced into the oil cavity 8, the parking brake piston 90 is made to move outwards, during the moving process, the self-adjusting sleeve body 4 is driven to move outwards together, when the outer end surface of the self-adjusting sleeve body 4 is pressed against the inner end surface of the rotating part of the second fixing bolt 5, the parking brake piston 90 cannot compress the driven friction plate and the driving friction plate of the wet brake 100, at this time, the oil cavity 8 is continuously introduced with oil, so that the parking brake piston 90 is continuously moved outwards and compresses the driven friction plate and the driving friction plate of the wet brake 100, at this time, the self-adjusting sleeve body 4 is not moved, so that the parking brake piston 90 and the self-adjusting sleeve body 4 generate relative movement, since the friction force between the outer side wall of the self-adjusting sleeve body 4 and the inner side wall of the mounting through hole 92 is larger than the elastic restoring force of the brake restoring spring 3, at this time, after the oil returns, the parking brake piston 90 is retracted inwards by the elastic restoring force of the brake restoring spring 3, at this time, the inner end surface of the self-adjusting sleeve body 4 is pressed against the inner end surface of the middle hole section 512, the inner end surface of the parking brake piston 90 is not pressed against the inner end surface of the middle hole section 512, so that certain abrasion is generated in each pressing and braking of the driven friction plate and the driving friction plate of the wet brake 100, each braking can move the parking brake piston 90 outwards for a certain distance relative to the self-adjusting sleeve body 4, thereby ensuring that the same amount of oil is introduced into the oil cavity 8 to enable the parking brake piston 90 to move outwards to press and brake the driven friction plate and the driving friction plate of the wet brake 100, ensuring the braking effect.
The above embodiments are only for illustrating the present invention, not for limiting the present invention, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present invention, and therefore, all equivalent technical solutions are also within the scope of the present invention, and the scope of the present invention is defined by the claims.
Claims (7)
1. The novel steering drive axle comprises an axle housing (10), bearing seat flanges (40) are respectively fixed on the left end face and the right end face of the axle housing (10), a brake flange (50) is fixed on the outer end face of the bearing seat flange (40), an inner connecting part of an axle shaft (60) is fixed at the outer end of the brake flange (50), a differential mechanism housing is hinged to the middle part of the bearing seat flange (40) through a bearing, a half shaft gear (70) is arranged in the differential mechanism housing, a spline shaft part of a half shaft (80) is inserted into a middle spline through hole of the half shaft gear (70), a mounting cavity is formed in the middle of the inner end face of the inner connecting part of the axle shaft (60), a wet brake (100) is positioned in the mounting cavity, the wet brake (100) is positioned at the outer side of the brake flange (50), and a middle spline shaft of the half shaft (80) is inserted into a center spline through hole of the wet brake (100); half axle (80) plug bush is in axle (60), and the outer end of half axle (80) is connected with outer semi-axis (82) through duplex universal joint, installs knuckle (32) on outer semi-axis (82), its characterized in that: the middle part of the outer end surface of the steering knuckle (32) is provided with a convex cylindrical sleeve body part (322) which extends outwards, the outer end surface of the convex cylindrical sleeve body part (322) is fixedly provided with a gear ring supporting plate (33) through a fixing bolt (34), the outer end surface of the convex cylindrical sleeve body part (322) is provided with at least two mortises (323), the middle inner wall surface of the gear ring supporting plate (33) is provided with at least two tenons (331), the tenons (331) are inserted into the corresponding mortises (323), and the side walls of the tenons (331) are tightly attached to the inner side walls of the corresponding mortises (323);
a parking brake piston (90) is formed in the middle of the brake flange (50), the outer end surface of the parking brake piston (90) faces the friction plate of the wet brake (100), a parking main brake piston (200) is arranged between the bearing seat flange (40) and the brake flange (50), a pushing sleeve body part (201) extending outwards is formed in the middle of the outer end surface of the parking main brake piston (200), and the outer end surface of the pushing sleeve body part (201) is pressed against the inner end surface of the parking brake piston (90); a plurality of brake springs (1) are arranged between the outer end face of the bearing seat flange (40) and the parking main brake piston (200), one end of each brake spring (1) is applied to the bearing seat flange (40), and the other end of each brake spring is applied to the parking main brake piston (200).
2. The novel steering drive axle of claim 1, wherein: the outer end face of the bearing seat flange (40) is provided with an annular mounting groove in a forming mode, an annular spring seat is nested in the annular mounting groove, a plurality of concave holes are formed in the outer end face of the annular spring seat in a forming mode, the inner end face of the parking main brake piston (200) is provided with an annular groove in a forming mode, a plurality of brake springs (1) are inserted into the annular groove and the corresponding concave holes in a sleeving mode, one ends of the brake springs (1) are applied to the inner end face of the annular groove, and the other ends of the brake springs (1) are applied to the inner end face of the corresponding concave holes.
3. The novel steering drive axle of claim 1, wherein: the middle part shaping of stopper flange (50) has ladder through-hole (51), ladder through-hole (51) are including outer end hole section (511) that are in the outer end, intermediate hole section (512) at the middle part and inner hole section (513) that are in the inner, the diameter of outer end hole section (511) is greater than intermediate hole section (512), the diameter of intermediate hole section (512) is greater than inner hole section (513), outer end hole section (511), intermediate hole section (512) and inner hole section (513) all communicate with each other, parking brake piston (90) plug bush is in outer end hole section (511) and intermediate hole section (512), the shaping has the ladder bellying on the lateral wall of parking brake piston (90), ladder bellying and ladder through-hole (51) cooperate.
4. The novel steering drive axle of claim 1, wherein: the inner end face side of the inner connecting portion of the axle shaft (60) is provided with a plurality of unlocking screw connecting through holes (61) extending inwards and transversely, the inner ends of the unlocking screw connecting through holes (61) extend out of the inner end face of the mounting cavity, screw portions of unlocking bolts (62) are screwed into the corresponding unlocking screw connecting through holes (61), pushing rod portions formed at the inner ends of the screw portions of the unlocking bolts (62) extend out of the inner end face of the unlocking screw connecting through holes (61) and extend into the mounting cavity, the end portions of the pushing rod portions of the unlocking bolts (62) are inserted into corresponding small-diameter hole sections of the outer ends of the step pushing through holes (53) formed at the outer end face side of the brake flange (50), unlocking sliding pins (54) are inserted into large-diameter hole sections of the inner ends of the step pushing through holes (53), and the inner ends of the unlocking sliding pins (54) face the outer end face side portions of the main brake pistons (200).
5. The novel steering drive axle of claim 4, wherein: the outer end of the screw rod part of the unlocking bolt (62) is positioned at the outer side of the outer end face of the inner connecting part of the axle shaft (60), a limiting locking sleeve (7) is sleeved on the outer end face, and the limiting locking sleeve (7) is clamped between the rotating part of the unlocking bolt (62) and the outer end face of the inner connecting part of the axle shaft (60).
6. The novel steering drive axle of claim 1, wherein: the outer side wall of a protruding cylinder sleeve body part (322) of the steering knuckle (32) is movably connected with a hub (36) through a bearing, the outer end face edge part of the hub (36) is fixedly connected with a planet wheel carrier (37) through a bolt, the outer ring of a first bearing (371) is fixed on the middle inner wall surface of an outer end plate of the planet wheel carrier (37), and the outer end of an outer half shaft (81) installed in the steering knuckle (32) extends out of a central through hole of the protruding cylinder sleeve body part (322) and a middle through hole of a gear ring supporting plate (33) and is fixed on the inner ring of the first bearing (371).
7. The novel steering drive axle of claim 1, wherein: a steering cylinder shell (20) is fixed at the rear of the lower part of the axle housing (10), a transverse cylinder push rod (30) is arranged in the middle of the steering cylinder shell (20), the left end and the right end of the transverse cylinder push rod (30) extend out of the left end and the right end of the steering cylinder shell (20), the end part of the transverse cylinder push rod (30) is connected with one end of a rotating arm (31), and the other end of the rotating arm (31) is movably connected on a connecting part (321) of a steering knuckle (32) through a hinge shaft;
the left or right outer side wall of the transverse oil cylinder push rod (30) is provided with a sensor induction ring (33), the left or right part of the steering oil cylinder shell (20) is provided with a sensor (34), and the induction end of the sensor (34) corresponds to the sensor induction ring (33).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210275603.7A CN114537044B (en) | 2022-03-21 | 2022-03-21 | Novel steering drive axle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210275603.7A CN114537044B (en) | 2022-03-21 | 2022-03-21 | Novel steering drive axle |
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| CN114537044A CN114537044A (en) | 2022-05-27 |
| CN114537044B true CN114537044B (en) | 2023-08-22 |
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| CN101348109A (en) * | 2008-07-30 | 2009-01-21 | 无锡开普动力有限公司 | Braking device of drive axle |
| CN102529579A (en) * | 2012-01-19 | 2012-07-04 | 武汉新能车桥技术发展有限公司 | Drive axle of electronic forklift |
| CN107265354A (en) * | 2017-06-26 | 2017-10-20 | 安徽合力股份有限公司 | A kind of fork truck driving integrated wet-type braking driving axle of parking |
| CN210174543U (en) * | 2019-06-19 | 2020-03-24 | 龙工(福建)桥箱有限公司 | Wheel side end cover of drive axle of loader |
| CN113027948A (en) * | 2021-03-03 | 2021-06-25 | 杭叉集团股份有限公司 | Wet-type half shaft brake with self-cooling function |
| CN214028067U (en) * | 2020-10-15 | 2021-08-24 | 浙江金道科技股份有限公司 | Wet-type axle and box integrated drive axle for forklift |
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2022
- 2022-03-21 CN CN202210275603.7A patent/CN114537044B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348109A (en) * | 2008-07-30 | 2009-01-21 | 无锡开普动力有限公司 | Braking device of drive axle |
| CN102529579A (en) * | 2012-01-19 | 2012-07-04 | 武汉新能车桥技术发展有限公司 | Drive axle of electronic forklift |
| CN107265354A (en) * | 2017-06-26 | 2017-10-20 | 安徽合力股份有限公司 | A kind of fork truck driving integrated wet-type braking driving axle of parking |
| CN210174543U (en) * | 2019-06-19 | 2020-03-24 | 龙工(福建)桥箱有限公司 | Wheel side end cover of drive axle of loader |
| CN214028067U (en) * | 2020-10-15 | 2021-08-24 | 浙江金道科技股份有限公司 | Wet-type axle and box integrated drive axle for forklift |
| CN113027948A (en) * | 2021-03-03 | 2021-06-25 | 杭叉集团股份有限公司 | Wet-type half shaft brake with self-cooling function |
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|---|---|
| CN114537044A (en) | 2022-05-27 |
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