CN110539812A - Distributed independent electrically driven light caterpillar vehicle wheel transmission device - Google Patents
Distributed independent electrically driven light caterpillar vehicle wheel transmission device Download PDFInfo
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- CN110539812A CN110539812A CN201910855374.4A CN201910855374A CN110539812A CN 110539812 A CN110539812 A CN 110539812A CN 201910855374 A CN201910855374 A CN 201910855374A CN 110539812 A CN110539812 A CN 110539812A
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- hub
- sleeve
- brake disc
- transmission sleeve
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/12—Arrangement, location, or adaptation of driving sprockets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
Abstract
The invention belongs to the technical field of a crawler vehicle driving device, and particularly relates to a wheel transmission device particularly suitable for a distributed independent electrically-driven light high-speed crawler vehicle.
Description
Technical Field
The invention belongs to the technical field of tracked vehicle transmission devices, and particularly relates to a transmission device of a light high-speed tracked vehicle.
Background
The crawler-type vehicle has large adhesive force and small average ground pressure, is suitable for working on soft pavements, has good trafficability for the working conditions of rough and rugged pavements, and is widely applied in industry and agriculture at present.
The type of the transmission device of the tracked vehicle is closely related to the selection of the power device, the structure of the transmission device matched with the internal combustion engine is complex, the traveling speed of the transmission device matched with the hydraulic system is slow, the driving torque is large, the weight of the transmission device is heavy, the transmission device is not suitable for the power device and the transmission device of the light high-speed tracked vehicle, and the transmission device of the distributed electric drive with high power density and compact structure is suitable.
Chinese patent CN106763567A describes a power integrated transmission device for tracked vehicle, which adopts internal combustion engine driving and hybrid power driving, and adopts side transmission arrangement for the input transmission device considering hybrid power, and the side transmission device has complex structure and large mass, and is not suitable for light tracked vehicle.
The hydraulic transmission described in japanese patent application laid-open publication No. 2012-40944 is a complex transmission that is applicable only to heavy low-speed tracked vehicles and not to light high-speed tracked vehicles, in which power output from an engine is transmitted to a wheel drive shaft via a dry clutch mechanism, an HST as a hydrostatic continuously variable transmission mechanism, a planetary gear mechanism, a forward/reverse switching mechanism, and a sub-transmission mechanism in this order.
For the distributed motor arrangement scheme of the light high-speed running tracked vehicle, the motor with high power density can meet the requirements of longitudinal running dynamic property and steering running conditions due to the fact that the whole vehicle is small in mass. However, the stress of the wheel transmission device is complex due to the difference of road conditions in the high-speed driving process of the distributed driving transmission device, and the wheel transmission device not only is affected by the bending moment of the tension of the crawler belt on the driving wheel, but also is affected by the driving torque.
Disclosure of Invention
The invention aims to provide a distributed independent electrically-driven wheel transmission device suitable for a light high-speed crawler, which can solve the problems of the arrangement scheme of the wheel transmission device of the existing light high-speed crawler and the running stability and power guarantee of the whole crawler under the working condition of a complex road surface.
the technical solution for realizing the invention is as follows: a light high-speed crawler distributed independent electric drive wheel transmission device comprises a drive motor, a speed reducer, a half shaft, a drive sleeve, a brake disc connecting hub sleeve, a brake caliper assembly, a vehicle body, a drive sleeve support seat, a sealing element, a locking nut, an outer bearing, an inner bearing and a wheel hub assembly, wherein the drive sleeve, the brake disc connecting hub sleeve, the brake caliper assembly, the sealing element, the locking nut, the outer bearing, the inner bearing, the wheel hub assembly and the half shaft are positioned outside the vehicle body, the drive motor, the speed reducer and the drive sleeve support seat are positioned inside the vehicle body, the drive sleeve body is hollow cylindrical, a flange is arranged outside the inward end face of the hollow cylindrical in a certain offset distance, the hollow cylindrical penetrates through a drive sleeve mounting hole of the vehicle body and is embedded inside the vehicle body, the inner side face of the flange is attached to the outer side face of the vehicle body, the drive, the outer side of the hollow cylinder is provided with a reinforcing rib which is fixedly connected with the vehicle body, the hollow cylinder of the transmission sleeve supporting seat is coaxial with the transmission sleeve, the inner diameter of the hollow cylinder of the transmission sleeve supporting seat is attached to the outer diameter of the hollow cylinder at the inner side of the transmission sleeve flange, the outer side surface of the hollow cylinder at the outer side of the transmission sleeve flange is provided with three steps, the radius of the steps is sequentially reduced from inside to outside, so that the hollow cylinder is sequentially a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, the brake disc connecting hub sleeve body is a hollow cylinder, the inner wall of the brake disc connecting hub sleeve hollow cylinder is provided with 2 layers of annular grooves which are concentric with the hollow cylinder, the annular grooves are respectively an inner first annular groove and an inner second annular groove, the inner wall of the brake disc connecting hub sleeve hollow cylinder outer end is provided with an outer annular groove which is concentric with the hollow cylinder, and, the brake caliper assembly is characterized in that a sealing element is arranged between a second cylinder of a transmission sleeve and an inner first annular groove of a brake disc connecting hub sleeve, an inner bearing is arranged between a third cylinder of the transmission sleeve and the inner second annular groove of the brake disc connecting hub sleeve, an outer bearing is arranged between a fourth cylinder of the transmission sleeve and an outer annular groove of the brake disc connecting hub sleeve, an external thread is arranged at the tail end of the fourth cylinder of the transmission sleeve, a locking nut is attached to the outer bearing through the external thread, two ends of the hub assembly are supported on a connecting flange and a support ring of the brake disc connecting hub sleeve, the brake caliper assembly and the brake disc of the brake disc connecting hub sleeve are positioned in a cavity formed by the inner side of the hub assembly and the outer side of a vehicle body, the brake disc is positioned in the brake caliper assembly, a half shaft body is of a cylindrical structure, the outer end of the half shaft flange is arranged at the outer end of the half shaft, the inner end of the half shaft is provided with an external spline, the half shaft penetrates through a hollow cylinder of the transmission sleeve and extends into the automobile body, a flange disc of the half shaft is connected with the outer side surface of a connecting flange of a brake disc connecting hub sleeve, the inner end of the speed reducer is provided with an input internal spline, the outer end of the speed reducer is provided with an output external spline, the outer end of the driving motor is provided with an output internal spline, the external spline at the inner end of the half shaft is matched with the output external spline of the speed reducer, the input internal spline of the speed reducer is matched with the output external spline of the driving motor, the internal splines of the half shaft, the speed.
Compared with the prior art, the invention has the remarkable advantages that:
1. Compared with the traditional crawler transmission device, the crawler transmission device adopts a distributed electric driving technology, reduces the volume and weight occupied by a transmission system, and improves the transmission efficiency; particularly, a transmission shaft penetrating through the front compartment and the rear compartment is eliminated, the design difficulty of a transmission device is reduced, and the space for optimizing the design is also improved for the chassis.
2. The speed reducer which is coaxially arranged with the driving motor and is matched with the driving motor can be internally provided with planetary gear trains with different transmission ratios, so that the arrangement flexibility of the transmission system is improved, and the requirements of different running conditions and power performance are met.
3. The design of the invention adopts the design idea of separating the structure from stress for the complex stress condition transmitted to the driving wheel by the road surface, the rigid cantilever of the transmission sleeve is connected inside and outside the vehicle body, the bending moment and other acting forces caused by road surface impact are borne by the transmission sleeve outside the vehicle body, the driving torque is borne by the half shaft, and the structure such as the supporting seat and the like arranged inside the vehicle body provides supporting counter force for the transmission sleeve.
4. The brake disc connecting hub sleeve has the advantages that due to the structural design, a novel integrated multifunctional structure is provided, the functions of connecting the flange disc, the support ring and the brake disc can be realized respectively, the structural design is simple, and the reliability is high.
5. In the invention, the brake is arranged by utilizing the cavity between the hub and the vehicle body, the structure is compact and reasonable in arrangement, and the maintenance and the repair are convenient.
Drawings
Fig. 1 is an overall schematic view of the distributed independent electric drive transmission of the light high-speed crawler of the present invention.
Detailed Description
The wheel transmission device of the distributed independent electrically-driven light tracked vehicle solves the problems of the arrangement scheme of the wheel transmission device of the existing light tracked vehicle and the guarantee of the running stability and the dynamic property of the whole vehicle under different road surface working conditions. The invention is described in further detail below with reference to the accompanying drawings, and aims to provide a distributed independent electrically-driven vehicle transmission of a light high-speed crawler, which is structurally shown in fig. 1.
With reference to fig. 1, the light tracked vehicle wheel transmission device comprises a driving motor (10), a speed reducer (9), a half shaft (16), a transmission sleeve (11), a brake disc connecting hub sleeve (3), a brake caliper assembly 4, a vehicle body (7), a transmission sleeve support seat (8), a sealing element (12), a lock nut (15), an outer bearing (14), an inner bearing (13) and a wheel hub assembly, wherein the transmission sleeve (11), the brake disc connecting hub sleeve (3), the brake caliper assembly 4, the sealing element (12), the lock nut (15), the outer bearing (14), the inner bearing (13), the wheel hub assembly and the half shaft (16) are positioned outside the vehicle body (7), the driving motor (10), the speed reducer (9) and the transmission sleeve support seat (8) are positioned inside the vehicle body (7), the body of the transmission sleeve (11) is hollow cylindrical, and a flange is arranged outside the inward end face of the hollow cylinder and is deviated by a certain distance, the hollow cylinder penetrates through a transmission sleeve mounting hole of the vehicle body (7) and is embedded into the vehicle body (7), the inner side face of the flange plate is attached to the outer side face of the vehicle body (7), a transmission sleeve supporting seat (8) is arranged on the inner side of the vehicle body (7), the body of the transmission sleeve supporting seat (8) is a hollow cylinder, reinforcing ribs are arranged on the outer side of the transmission sleeve supporting seat and fixedly connected with the vehicle body (7), the hollow cylinder of the transmission sleeve supporting seat (8) is coaxial with a transmission sleeve (11), the inner diameter of the hollow cylinder of the transmission sleeve supporting seat (8) is attached to the outer diameter of the hollow cylinder of the inner side of the transmission sleeve (11), three steps are arranged on the outer side face of the hollow cylinder of the flange outer side portion of the transmission sleeve (11), the radius of the steps is sequentially reduced from inside to outside, and accordingly sequentially comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder, the body of the brake disc connecting hub sleeve (3) is a The brake disc connecting hub sleeve comprises grooves which are respectively an inner first annular groove and an inner second annular groove, the inner wall of the outer end of a hollow cylinder of the brake disc connecting hub sleeve (3) is provided with an outer annular groove concentric with the hollow cylinder, the outer side surface of the hollow cylinder of the brake disc connecting hub sleeve (3) is respectively provided with an annular boss at the inner end surface, the outer end surface and the middle part, the annular boss is respectively called as a brake disc, a connecting flange plate and a support ring, a sealing element (12) is arranged between a second cylinder of the transmission sleeve (11) and the inner first annular groove of the brake disc connecting hub sleeve (3), an inner bearing (13) is arranged between a third cylinder of the transmission sleeve (11) and the inner second annular groove of the brake disc connecting hub sleeve (3), an outer bearing (14) is arranged between a fourth cylinder of the transmission sleeve (11) and the outer annular groove of the brake disc connecting hub sleeve (3), the locking nut (15) is attached to the outer bearing (14) through external threads, two ends of the hub assembly are supported on a connecting flange and a supporting ring of the brake disc connecting hub sleeve (3), the brake disc of the brake caliper assembly 4 and the brake disc connecting hub sleeve (3) is positioned in a cavity formed by the inner side of the hub assembly and the outer side of the vehicle body (7), the brake disc is positioned in the brake caliper assembly 4, the half shaft (16) body is of a cylindrical structure, the outer end of the half shaft (16) body is a half shaft flange disc, a circle of six connecting through holes uniformly distributed along the circumferential direction are formed in the half shaft flange disc, an external spline is arranged at the inner end of the half shaft (16), a gap is reserved between the half shaft (16) and a hollow cylinder of the transmission sleeve (11) and penetrates through the transmission sleeve (11) to extend into the vehicle body (7), the half shaft flange disc is connected with the outer side face of the connecting flange of the, the outer end is equipped with the output external splines, and driving motor (10) outer end is equipped with the output internal key, and half axle (16) inner external splines cooperatees with decelerator (9) output external splines, and decelerator (9) input internal splines cooperatees with driving motor (10) output external splines, the internal splines and the external splines of half axle (16), decelerator (9) and driving motor (10) are coaxial, and decelerator (9) and driving motor (10) link firmly mutually with automobile body (7).
The outer terminal surface of automobile body (7) and the department that laminates mutually of transmission cover (11) ring flange are equipped with the circular recess that diameter and ring flange are the same, circular recess surface is equipped with six connecting thread holes of circumference evenly distributed, the circular recess degree of depth is less than automobile body (7) thickness, it is used for the location when transmission cover (11) and automobile body (7) installation, transmission cover (11) the inner pass the automobile body and with the cooperation installation of transmission cover supporting seat (8) of terminal surface in the automobile body, transmission cover supporting seat (8) are linked firmly in the automobile body inner wall, and be equipped with the strengthening rib on transmission cover supporting seat (8), transmission cover supporting seat (8) have provided the support counter-force for transmission cover (11), increase the reliability of traveling of tracked vehicle.
A ring of six connecting through holes which are uniformly distributed along the circumferential direction and are matched with the threaded connecting holes on the surface of the circular groove on the outer end surface of the vehicle body (7) are arranged on the flange plate at the inner end of the transmission sleeve (11), transition surfaces are respectively arranged between the first cylinder and the second cylinder, between the second cylinder and the third cylinder, and between the third cylinder and the fourth cylinder of the transmission sleeve (11), and are a first transition surface, a second transition surface and a third transition surface, the first shaft shoulder is formed at the intersection of the first transition surface and the second cylinder and used for positioning and mounting the sealing element (12), the second shaft shoulder is formed at the intersection of the second transition surface and the third cylinder, the third shaft shoulder is formed at the intersection of the third transition surface and the fourth cylinder and mounted by the outer bearing (14), a gap is reserved between the inner end surface of the inner ring of the outer bearing (14) and the third shaft shoulder, and the purpose of the gap is to adjust the locking and positioning of the locking nut (15).
The wheel hub subassembly includes wheel hub (2) and ring gear (1), wherein wheel hub (2) body be one with semi-axis (16) concentric cylindrical hollow structure, the outer end of its inner wall is equipped with wheel hub connection flange dish, and the outer terminal surface of wheel hub connection flange dish is the same with wheel hub (2) outer terminal surface, the outer terminal surface laminating of the connection flange dish of wheel hub connection flange dish inner terminal surface and brake disc connection hub cover (3), the inner of wheel hub (2) inner wall is equipped with the first annular groove of wheel hub, be equipped with the rim on wheel hub (2) outer wall, a pair of ring gear (1) fixed mounting is on the inside and outside terminal surface of rim. Wherein, be equipped with six connect the via hole of round along circumference evenly distributed on wheel hub's (2) the connection flange dish, the width of wheel hub (2) first annular groove is unanimous with the support ring thickness that hub sleeve (3) is connected to the brake disc, wheel hub (2) middle part is equipped with the deflector, the inside and outside both ends face department of rim respectively is equipped with six connect the screw hole of round along circumference evenly distributed, ring gear (1) is a fretwork disk structure, ring gear (1) both ends face department respectively is equipped with the round along circumference evenly distributed and with six connect the via hole of rim department matched with, ring gear (1) outside is equipped with 12 teeth, be annular align to grid, be used for the transmission of track power.
The outer end face of a connecting flange of the brake disc connecting hub sleeve (3) is provided with two circles of concentric connecting threaded holes which are uniformly distributed along the circumferential direction and have different radiuses, wherein the first connecting threaded hole is a first connecting threaded hole with a small radius, and the second connecting threaded hole is a second connecting threaded hole with a large radius, the first connecting threaded hole is matched with a connecting through hole on a half shaft flange of a half shaft (16) and is used for mounting the half shaft (16) and the brake disc connecting hub sleeve (3), the second connecting threaded hole is matched with a connecting through hole on a flange of a wheel hub (2) and is used for mounting the wheel hub (2) and the brake disc connecting hub sleeve (3), a support ring of the brake disc connecting hub sleeve (3) is matched with a first annular groove at the inner end of the wheel hub (2) to play the roles of positioning and supporting the partial weight of the wheel hub, and a first step is formed at the intersection of the inner first annular groove and the inner second annular groove of the inner, the inner ring groove locating device is used for locating a sealing element (12), a second step is formed at the intersection of an inner second outer ring groove and an inner wall and used for locating an inner bearing (13), a third step is formed at the intersection of an outer ring groove and the inner wall and used for locating an outer bearing (14), the depth of the inner first ring groove of the brake disc connecting hub sleeve (3) is the width of the sealing element (12), the outer end face of the inner first ring groove is level, the bottom of the inner second ring groove is level with the outer end face of the outer ring of the inner bearing (13), and the inner end face of the outer ring of the outer bearing (14) is level with the bottom of the outer ring groove.
The installation and positioning of the half shaft (16) depend on the matching of an external spline at the inner end of the half shaft and an output external spline of the speed reducer (9), a half shaft flange at the outer end of the half shaft (16) and a connecting flange plate of the brake disc connecting hub sleeve (3) are fixedly connected through bolts, and the half shaft (16), the transmission sleeve (11), the driving motor (8) and the speed reducer (7) are all arranged on the same axis.
In conclusion, the distributed independent electric drive device is adopted for the light high-speed tracked vehicle, the arrangement flexibility of the transmission system is improved, the structure is more compact, the volume and the weight occupied by the transmission system are reduced, particularly, a transmission shaft penetrating through a front carriage and a rear carriage is omitted, the design difficulty of the transmission device is reduced, and the space for optimizing the design is also improved for the chassis; according to the invention, the inner end of the transmission sleeve (11) is connected with the outer wall of the vehicle body (7) through a bolt, meanwhile, the inner end of the transmission sleeve (11) penetrates through the vehicle body (7) and is installed in a manner of being matched with the transmission sleeve supporting seat (8) on the inner end surface of the vehicle body (7), the transmission sleeve supporting seat (8) is fixedly connected to the inner wall of the vehicle body (7), and the transmission sleeve supporting seat (8) is provided with a reinforcing rib, so that the design ensures the safety and reliability of the whole wheel transmission device when a vehicle runs at; the pair of tapered roller bearings are mounted on the transmission sleeve (11) and used for supporting the brake disc to be connected with the hub sleeve (3) to rotate, the half shaft (16) and the hub (2) are connected to the flanged connecting flange at the outer end of the brake disc to be connected with the hub sleeve (3) through bolts, so that the purpose of design is that in the high-speed running process of the tracked vehicle, the impact on the ground caused by various complex road conditions is completely borne by the transmission sleeve (11), the half shaft (16) only bears the torque from the driving motor (10) theoretically at the moment, namely, the transmission sleeve (11) is responsible for bearing the bending moment, and the half shaft (16) only bears the torque; wheel drive arrangement's wheel hub (2) adopt hollow structure, in order to realize tracked vehicle's lightweight under the condition that satisfies its structural strength, the rim is the horn mouth and opens the shape, makes the space utilization increase between drive wheel inboard and automobile body (7) in order to make things convenient for arranging and maintaining of brake caliper subassembly.
Claims (9)
1. The distributed independent electrically-driven light caterpillar vehicle wheel transmission device is characterized in that: the brake system comprises a driving motor, a speed reducer, a half shaft, a transmission sleeve, a brake disc connecting hub sleeve, a brake caliper assembly, a vehicle body, a transmission sleeve supporting seat, a sealing element, a locking nut, an outer bearing, an inner bearing and a wheel hub assembly, wherein the transmission sleeve, the brake disc connecting hub sleeve, the brake caliper assembly, the sealing element, the locking nut, the outer bearing, the inner bearing, the wheel hub assembly and the half shaft are positioned outside the vehicle body, the driving motor, the speed reducer and the transmission sleeve supporting seat are positioned inside the vehicle body, the transmission sleeve body is hollow cylindrical, a flange is arranged outside the inward end face of the hollow cylinder in a deviating mode for a certain distance, the hollow cylinder penetrates through a transmission sleeve mounting hole of the vehicle body and is embedded inside the vehicle body, the inner side face of the flange is attached to the outer side face of the vehicle body, the transmission sleeve supporting seat, the hollow cylinder of the transmission sleeve supporting seat is coaxial with the transmission sleeve, the inner diameter of the hollow cylinder of the transmission sleeve supporting seat is attached to the outer diameter of the hollow cylinder at the inner side of the transmission sleeve flange, three steps are arranged on the outer side surface of the hollow cylinder at the outer side surface of the transmission sleeve flange, the radius of the steps is reduced from inside to outside in sequence, so that a first cylinder, a second cylinder, a third cylinder and a fourth cylinder are arranged in sequence, the brake disc connecting hub sleeve body is a hollow cylinder, 2 layers of annular grooves concentric with the hollow cylinder are arranged on the inner wall of the brake disc connecting hub sleeve hollow cylinder, namely an inner first annular groove and an inner second annular groove, the inner wall of the outer end of the brake disc connecting hub sleeve hollow cylinder is provided with an outer annular groove concentric with the hollow cylinder, annular bosses are arranged on the outer side surface, the inner end surface, the outer end surface and the middle, The brake caliper comprises a connecting flange plate and a support ring, a sealing element is arranged between a second cylinder of a transmission sleeve and an inner first annular groove of a brake disc connecting hub sleeve, an inner bearing is arranged between a third cylinder of the transmission sleeve and the inner second annular groove of the brake disc connecting hub sleeve, an outer bearing is arranged between a fourth cylinder of the transmission sleeve and an outer annular groove of the brake disc connecting hub sleeve, an external thread is arranged at the tail end of the fourth cylinder of the transmission sleeve, a locking nut is attached to the outer bearing through the external thread, two ends of a hub assembly are supported on a connecting flange and the support ring of the brake disc connecting hub sleeve, a brake caliper assembly and a brake disc of the brake disc connecting hub sleeve are positioned in a cavity formed by the inner side of the hub assembly and the outer side of a vehicle body, the brake disc is positioned in the brake caliper assembly, a half shaft body is of a cylindrical structure, the outer end is a half shaft flange, the brake disc is inserted into the vehicle body, the half shaft flange disc is connected with the outer side face of the brake disc connecting hub sleeve connecting flange, the inner end of the speed reducer is provided with an input internal spline, the outer end of the speed reducer is provided with an output external spline, the outer end of the driving motor is provided with an output internal key, the external spline at the inner end of the half shaft is matched with the output external spline of the speed reducer, the input internal spline of the speed reducer is matched with the output external spline of the driving motor, the internal splines and the external splines of the half shaft, the speed reducer and the driving motor are coaxial, and.
2. The coupling relationship between the drive sleeve and the vehicle body according to claim 1, wherein: the flange plate at the inner end of the transmission sleeve is connected with the outer end face of the vehicle body through a bolt, a circular groove with the same diameter as the flange plate is arranged at the joint of the outer end face of the vehicle body and the transmission sleeve, the depth of the circular groove is less than the thickness of the vehicle body, and the circular groove is used for positioning when the transmission sleeve and the vehicle body are installed; the inner end of the transmission sleeve penetrates through the vehicle body and is installed in a matched mode with the transmission sleeve supporting seat on the inner end face of the vehicle body, the transmission sleeve supporting seat is fixedly connected to the inner wall of the vehicle body, reinforcing ribs are arranged on the transmission sleeve supporting seat, the transmission sleeve supporting seat provides supporting counter force for the transmission sleeve, the structural design improves the use reliability of parts, and the running safety of the tracked vehicle under various complex road conditions when the tracked vehicle runs at a high speed is guaranteed.
3. The drive sleeve of any of claims 1-2, wherein: the flange plate at the inner end of the transmission sleeve is connected with the outer end face of the vehicle body through a bolt, transition faces are arranged between a first cylinder and a second cylinder of the transmission sleeve, between a second cylinder and a third cylinder, and between a third cylinder and a fourth cylinder, and are respectively a first transition face, a second transition face and a third transition face, wherein a first shaft shoulder is formed at the intersection of the first transition face and the second cylinder, the first shaft shoulder is used for positioning and mounting of a sealing element, a second shaft shoulder is formed at the intersection of the second transition face and the third cylinder, the second shaft shoulder is used for positioning and mounting of an inner bearing, a third shaft shoulder is formed at the intersection of the third transition face and the fourth cylinder, the third shaft shoulder is used for positioning and mounting of an inner ring of an outer bearing, a gap is reserved between the inner end face of the inner ring of the outer bearing and the third shaft shoulder, and the gap aims to adjust the.
4. The drive sleeve of any of claims 1-3, further characterized by: the transmission sleeve is rigidly suspended inside and outside the vehicle body, the design idea of separating the structure from stress is adopted for the complex stress condition transmitted to the driving wheel from the road surface, the bending moment and other acting forces caused by road surface impact are borne by the transmission sleeve, a gap is reserved between the half shaft and the transmission sleeve, the half shaft only bears the driving torque, the driving torque is borne by the half shaft, and meanwhile, the transmission sleeve supporting seat inside the vehicle body provides supporting counter force for the transmission sleeve, so that the use reliability of the half shaft is improved, and the driving safety of the vehicle under various complex road conditions is ensured.
5. The hub assembly of claim 1, wherein: the hub comprises a hub body and a gear ring, wherein the hub body is of a cylindrical hollow structure concentric with a half shaft, a hub connecting flange plate is arranged at the outer end of the inner wall of the hub body, the outer end face of the hub connecting flange plate is flush with the outer end face of the hub, the inner end face of the hub connecting flange plate is attached to the outer end face of a connecting flange plate of a brake disc connecting hub sleeve, a first annular groove of the hub is arranged at the inner end of the inner wall of the hub, a wheel rim is arranged on the outer wall of the hub, a pair of gear rings are fixedly arranged in the wheel rim and on the outer end face of the wheel rim, the width of the first annular groove of the hub is consistent with the thickness of a supporting ring of the brake.
6. The brake disc attachment hub sleeve of any one of claims 1 to 5, wherein: the outer end face of a connecting flange plate of the brake disc connecting hub sleeve is provided with two rings of connecting threaded holes, wherein the first connecting threaded hole with a small radius is a first connecting threaded hole, the second connecting threaded hole with a large radius is a second connecting threaded hole, the first connecting threaded hole is matched with a connecting through hole on a half shaft flange plate of a half shaft and is used for mounting the half shaft and the brake disc connecting hub sleeve, the second connecting threaded hole is matched with a connecting through hole on a flange plate of a wheel hub and is used for mounting the wheel hub and the brake disc connecting hub sleeve, a support ring of the brake disc connecting hub sleeve is matched with a first annular groove at the inner end of the wheel hub to play a role of positioning and supporting partial weight of the wheel hub, a first step is formed at the intersection of an inner first annular groove and an inner second annular groove of the inner end inner wall of the brake disc connecting hub sleeve and is used for positioning a, the outer annular groove and the inner wall are intersected to form a third step for positioning an outer bearing, the depth of an inner first annular groove of the brake disc connecting hub sleeve is the width of the sealing element, the outer end faces of the inner first annular groove are aligned, the bottom of an inner second annular groove is aligned with the outer end face of the outer ring of the inner bearing, and the inner end face of the outer ring of the outer bearing is aligned with the bottom of the outer annular groove.
7. The brake disc attachment hub according to any one of claims 1 to 6, which employs a novel one-piece, multi-function structure, characterized in that: the three functional structures on the brake disc connecting hub sleeve are respectively a connecting flange, a support ring and a brake disc, wherein the connecting flange is used for mounting and connecting the hub and positioning and mounting the half shaft, the support ring is used for bearing the weight of part of the hub and ensuring the reliability of structural strength, and the brake disc is used for matching and mounting the brake.
8. The brake rotor hub-attached brake of claim 7, wherein: the stopper installation is arranged in the cavity that wheel hub and automobile body formed, and the characteristics of quick detachable maintenance are still satisfied on the basis of guaranteeing space utilization to this kind of compact space arrangement scheme, possess better use convenience for traditional tracked vehicle.
9. The driving sleeve, the half shaft, the motor and the speed reducer of the driving wheel of the tracked vehicle are all positioned on the same axis, and a distributed electric driving device of a light high-speed tracked vehicle is adopted, so that the arrangement flexibility of a driving system is improved, the volume and the weight occupied by the driving system are reduced, and the driving efficiency is improved; especially, a transmission shaft penetrating through the front compartment and the rear compartment is eliminated, the design difficulty of a transmission device is reduced, the mass center position of a cockpit and a passenger compartment is reduced, and the dynamic running stability of the vehicle is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910855374.4A CN110539812A (en) | 2019-09-06 | 2019-09-06 | Distributed independent electrically driven light caterpillar vehicle wheel transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910855374.4A CN110539812A (en) | 2019-09-06 | 2019-09-06 | Distributed independent electrically driven light caterpillar vehicle wheel transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN110539812A true CN110539812A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910855374.4A Pending CN110539812A (en) | 2019-09-06 | 2019-09-06 | Distributed independent electrically driven light caterpillar vehicle wheel transmission device |
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| Country | Link |
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| CN (1) | CN110539812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055673A (en) * | 2019-12-30 | 2020-04-24 | 北京晶品特装科技有限责任公司 | Lightweight driving device for robot platform |
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2019
- 2019-09-06 CN CN201910855374.4A patent/CN110539812A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055673A (en) * | 2019-12-30 | 2020-04-24 | 北京晶品特装科技有限责任公司 | Lightweight driving device for robot platform |
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