CN104251296B - Hydraulic-hydraumatic comprehensive driving axle gear box - Google Patents
Hydraulic-hydraumatic comprehensive driving axle gear box Download PDFInfo
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- CN104251296B CN104251296B CN201310266316.0A CN201310266316A CN104251296B CN 104251296 B CN104251296 B CN 104251296B CN 201310266316 A CN201310266316 A CN 201310266316A CN 104251296 B CN104251296 B CN 104251296B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
- F16H2700/02—Transmissions, specially for working vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a hydraulic-hydraumatic comprehensive driving axle gear box for a high-speed railway maintaining vehicle. The hydraulic-hydraumatic comprehensive driving axle gear box comprises a box assembly, a motor input spline shaft assembly, an input gear shaft assembly, a middle shaft assembly, an output shaft assembly, a gearshift assembly, a pull arm assembly, a lubricating system, a sealing structure and an aerator, wherein the box assembly comprises a box cover, an upper box body and a lower box body; the motor input spline shaft assembly and the input gear shaft assembly are mounted and supported on a bearing base hole between the box cover and the upper box body and are provided with the same first axis; the middle shaft assembly and the output shaft assembly are mounted and supported on the bearing base hole between the upper box body and the lower box body; a second axis of the middle shaft assembly and a third axis of the output shaft assembly are both located in a lower subdivision part and are vertical to each other; the second axis is parallel to the first axis and is deviated for a distance S; one end of the middle shaft of the middle shaft assembly extends out of the box assembly. The hydraulic-hydraumatic comprehensive driving axle gear box has compact layout, reasonable structure and capability of realizing the conversion of two driving modes.
Description
Technical field
The present invention relates to a kind of rail vehicle actuating unit, particularly relate to a kind of axle shaft gear-box of high-speed railway upkeep operation vehicle.
Background technique
High-speed railway upkeep operation vehicle---Rapid contact net comprehensive operation vehicle, is the professional equipment of electric railway, the maintenance of high speed passenger dedicated railway contact net, maintenance, repairing, also can be used for the railway engineering vehicle of the examination and maintenance of the facility such as circuit, bridge.There is the highest running speed of 160km/h, operation field can be arrived fast.This car is furnished with Contact Line Detection device, lifts thread-moving device, the equipment such as lifting rotation working platform, high-lift operation bucket.
Along with China Express Railway fast development, existing railway raises speed being open to the traffic of 160 ~ 200km/h and extensive 200km/h and above Line for Passenger Transportation on a large scale, and the driving feature of high freight volume, high density, high punctuality rate, high safety it is also proposed stricter requirement to the maintenance efficiency of circuit and quality.Domestic original working truck response speed is slow, and the marshalling upkeep operation time is long, affects upkeep operation efficiency, can not meet the requirement of repairing to time efficiency of high-speed electrified circuit.Carrying out the natural disasteies such as rapid rush-repair, rescue and reply be freezing to wiring circuit contact net, improve the quality that vehicle safeguarded by main line, is the requisite measure ensureing high-speed railway operational efficiency and safety; For this reason, at a high speed, Rapid contact net comprehensive operation vehicle that is efficient and high reliability will become the new demand of railway contact line maintenance department.
Rapid contact net comprehensive operation vehicle has two kinds of working staties, and one is high speed operation state, for train being left the place to treating operation, or returns station; Another kind is low constant speed job run state, for Contact Line Detection, upkeep operation; Highest running speed 160km/h, operation traveling speed 0 ~ 10km/h.In existing engineering maintenance working truck technology, during high speed operation, for hydraudynamic drive, during low speed operation traveling, for hydraulic transmission, two cover power systems are high, low speed adopts different axle shaft gear-boxes, its axle gear box mainly also exists following shortcoming and defect: 1. can only adapt to single transmission mode, therefore, in order to adapt to different operating conditionss, different power transmission modes uses different axle gear boxs to drive respectively, need to arrange the different axle gear box of function in vehicle, cause the power transmission system of vehicle more complicated, system reliability reduces, increase vehicle counterweight, cost is high and waste a large amount of vehicle body space.2. maximum travel speed is substantially at about 100km/h, and minority can reach 120km/h; Circuit transport power is more and more concentrated now, when motion speed is more and more faster, the operational efficiency of circuit certainly will be affected to a certain extent, especially can not meet the requirement of high-speed railway, Line for Passenger Transportation.3. axle gear box takies the space of bogie comparatively greatly, makes the reel formula brake rigging of hot-short braking requirement without space mounting, limits the raising of running velocity.
It is reported, mainly contain MTW100 type repairing car for overhead contact line equipment (120km/h) that PLASSER company produces at present abroad, BR711 type quick multifunctional comprehensive operation vehicle (more than 160km/h), ROBEL company that GBM company produces produce 57.44 type tool cars (140km/h).And the domestic product not having maturation at present, domestic Rapid contact net comprehensive operation vehicle of researching and developing, when it uses at a high speed, (160km/h) is hydraudynamic drive, and during low constant speed operation, (0 ~ 10km/h) is hydraulic driving.Axle gear box is the traveling traction drive of this car, and its effect is that the input power of hydraulic transmission gear box or oil hydraulic motor is passed to travelling wheel pair effectively, thus drives car load to run.
Through patent retrieval, do not have discovery to be applicable to Rapid contact net comprehensive operation vehicle, possess the axle gear box that simultaneously can be applicable to fluid power and hydraulic pressure two kinds of power transmission modes; Therefore develop a kind of Rapid contact net comprehensive operation vehicle high, low speed that is applicable to and run traction drive, and the axle gear box of power transmission mode conversion can be realized, have important practical significance.
Summary of the invention
The object of the present invention is to provide a kind of compact in design, rational in infrastructure, can realize fluid power and hydraulic pressure two kinds of transmission systems walk the integrated of row cutting, and the fluid power-hydraulic pressure comprehensive driving axle gear-box of two kinds of power transmission modes conversion can be realized.
In order to achieve the above object, technological scheme of the present invention is: a kind of fluid power-hydraulic pressure comprehensive driving axle gear-box, comprise casing assembly, motor input splined shaft assembly, input gear axle assembly, countershaft assembly, output shaft assembly, gearshift assembly, torque arm assembly, lubrication system, sealing configuration and breather, described casing assembly comprises case lid, upper box and lower box, and be bolted to connection together, motor input splined shaft assembly, input gear axle assembly, countershaft assembly and output shaft assembly are installed in casing assembly; Described motor input splined shaft assembly and input gear axle assembly are installed the bearing saddle bore that is supported between case lid and upper box and are had common first axle, described first axle is positioned at split surface, described countershaft assembly and output shaft assembly install the bearing saddle bore be supported between upper box and lower box, and the second axis of countershaft assembly and the 3rd axis of output shaft assembly are all positioned at lower split surface and mutually intersect vertically; Second axis of described countershaft assembly and the first axle of input gear axle assembly are parallel to each other, and have an offset distance S between the second axis and first axle; The input splined shaft of described motor input splined shaft assembly passes through the input gear axle clutch of gearshift assembly and input gear axle assembly, the active cylindrical gears of input gear axle assembly engages with the driven cylindrical gear of countershaft assembly, the active helical bevel gear of countershaft assembly engages with the driven helical bevel gear of output shaft assembly, and driven helical bevel gear is fixed on axletree; One end of the jack shaft of described countershaft assembly is stretched out outside casing assembly.
Described motor input splined shaft assembly also comprises oil hydraulic motor, motor mounting flange and clutch shaft bearing, described oil hydraulic motor is fixedly connected with casing assembly by motor mounting flange, the axle of oil hydraulic motor is connected with input splined shaft by spline, one end of input splined shaft is supported in by clutch shaft bearing in the inside input shaft bearing on upper box, and the other end is supported in the outside input shaft bearing between upper box and case lid by corresponding clutch shaft bearing.
Described input gear axle assembly also comprises gearshift clutch spline housing, bearing housing and the second bearing, gearshift clutch spline housing by spline joint on input gear axle, one end of input gear axle is by the internal bearings seat of the second bearings between upper box and case lid, and the other end is by the outboard shafts bearing of corresponding second bearings between upper box and case lid.
Described countershaft assembly also comprises input flange, the 3rd bearing and jack shaft seal ring, the 3rd bearings is passed through on the bosom bearing support between upper box and lower box in one end of jack shaft, the other end is by the outside middle bearing bracket of corresponding 3rd bearings between upper box and lower box, and described input flange is arranged on one end of stretching out outside casing assembly of jack shaft.
Described output shaft assembly also comprises oil pump gear, the 4th bearing and output shaft seal ring, and axletree is rotatably supported on casing assembly by the 4th bearing.
Described gearshift assembly is installed on the top of casing assembly, comprise and stir cylinder, shifting fork beam, stop nut, connection bearing, shift fork transmission shaft and fork, the described gearshift clutch spline housing stirred cylinder-driven and connect input gear axle assembly, gearshift clutch spline housing is moved back and forth on input gear axle, and gearshift clutch spline housing realizes clutch with input splined shaft.
Described lubrication system comprises lubricating pump, casing lubricating oil path and oil trap, described lubricating pump is installed on the bottom of lower box, the oil pump driven gear be installed on axletree is in transmission connection lubricating pump, lubricating pump by casing lubricating oil path and oil trap to each lubricating point fuel feeding.
Described torque arm assembly is connected on upper box, and torque arm assembly comprises drag link body and rubber spherical joint, and rubber spherical joint is contained in the end of drag link body.
Described sealing configuration is arranged on the through place of rotation of output shaft assembly and input end rotary seal place of countershaft assembly, all adopts contactless labyrinth seal structure and includes seal ring, sealing cover, underpressure chamber, oil baffle and return port.
Described breather is installed in the breather bore at casing assembly rear portion.
Technique effect: fluid power and hydraulic transmission mode are assembled one by axle gear box of the present invention, and can realize the conversion of two kinds of power transmission modes; The vehicle hydraulic transmission of high-speed railway upkeep operation and the requirement of hydraulic transmission two kinds of kind of drive traction drive can be met simultaneously, make vehicle both possess high speed performance, there is again excellent low constant speed performance; Simplify vehicle driveline structure, reduce vehicle drive-train parts and counterweight, saving arrangement space.There is level of integration high, compact in design, transmission efficiency and bearing capacity high, good heat dissipation effect, the feature such as to shift gears light, flexible.
Accompanying drawing explanation
Fig. 1 is the structural representation of fluid power of the present invention-hydraulic pressure comprehensive driving axle gear-box;
Fig. 2 is the C-C sectional view of Fig. 1;
Fig. 3 is the A direction view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the D direction view of Fig. 1;
Fig. 6 is one application schematic diagram of the present invention.
Embodiment
The embodiment provided below in conjunction with accompanying drawing is described further technical solution of the present invention.
As Fig. 1, 2, 3, 4, shown in 5, a kind of fluid power-hydraulic pressure comprehensive driving axle gear-box, comprise casing assembly 9, motor input splined shaft assembly 8, input gear axle assembly 10, countershaft assembly 12, output shaft assembly 13, gearshift assembly 16, torque arm assembly 11, lubrication system 14, sealing configuration 18 and breather 15, described casing assembly 9 comprises case lid 9-1, upper box 9-2 and lower box 9-3, and be bolted to connection together, motor input splined shaft assembly 8 is installed in casing assembly 9, input gear axle assembly 10, countershaft assembly 12 and output shaft assembly 13, described motor input splined shaft assembly 8 and input gear axle assembly 10 are installed the bearing saddle bore that is supported between case lid 9-1 and upper box 9-2 and are had common first axle 19, described first axle 19 is positioned at split surface 20, described countershaft assembly 12 and output shaft 13 assembly install the bearing saddle bore be supported between upper box 9-2 and lower box 9-3, and the second axis 21 of countershaft assembly 12 and the 3rd axis 22 of output shaft assembly 13 are all positioned at lower split surface 23 and mutually intersect vertically, second axis 21 of described countershaft assembly 12 and the first axle 19 of input gear axle assembly 10 are parallel to each other, and have an offset distance S between the second axis 21 and first axle 19, the input splined shaft 8-2 of described motor input splined shaft assembly 8 is by the input gear axle 10-2 clutch of gearshift assembly 16 with input gear axle assembly 10, the active cylindrical gears 10-4 of input gear axle assembly 10 engages with the driven cylindrical gear 12-2 of countershaft assembly 12, the active helical bevel gear 12-3 of countershaft assembly 12 engages with the driven helical bevel gear 13-3 of output shaft assembly 13, and driven helical bevel gear 13-3 is fixed on axletree 13-2.One end of the jack shaft 12-4 of described countershaft assembly 12 is stretched out outside casing assembly 9.
For the ease of the installation of oil hydraulic motor, offset distance S is preferably 25 ~ 50mm.
As shown in Fig. 1,4, described motor input splined shaft assembly 8 also comprises oil hydraulic motor 1, motor mounting flange 8-1 and clutch shaft bearing 24, described oil hydraulic motor 1 is fixedly connected with casing assembly 9 by motor mounting flange 8-1, the axle of oil hydraulic motor 1 is connected with input splined shaft 8-2 by spline, one end of input splined shaft 8-2 is supported in by clutch shaft bearing 24 on the inside input shaft bearing 9-21-2 on upper box 9-2, and the other end is supported on the outside input shaft bearing 9-21-1 between upper box 9-2 and case lid 9-1 by corresponding clutch shaft bearing 24.
As shown in Fig. 1,4, described input gear axle assembly 10 also comprises gearshift clutch spline housing 10-1, bearing housing 10-3 and the second bearing 25, gearshift clutch spline housing 10-1 by spline joint on input gear axle 10-2, one end of input gear axle 10-2 is supported on the internal bearings seat 9-21-3 between upper box 9-2 and case lid 9-1 by the second bearing 25, and the other end is supported on the outboard shafts bearing 9-21-4 between upper box 9-2 and case lid 9-1 by corresponding second bearing 25.
As shown in Figure 1, 2, described countershaft assembly 12 also comprises input flange 12-1, the 3rd bearing 26 and jack shaft seal ring 18-1, one end of jack shaft 12-4 is supported on the bosom bearing support 9-23-1 between upper box 9-2 and lower box 9-3 by the 3rd bearing 26, the other end is supported on the outside middle bearing bracket 9-23-2 between upper box 9-2 and lower box 9-3 by corresponding 3rd bearing 26, and described input flange 12-1 is arranged on one end of stretching out outside casing assembly 9 of jack shaft 12-4.
As shown in Figure 1, 2, described output shaft assembly 13 is also comprised oil pump gear 13-1, the 4th bearing 27 and output shaft seal ring 13-4, axletree 13-2 and is rotatably supported on casing assembly 9 by the 4th bearing 27.
As shown in Figure 3,4, described gearshift assembly 16 is installed on the top of casing assembly 9, comprise and stir cylinder 16-1, shifting fork beam 16-2), stop nut 16-3, connect bearing 16-4, shift fork transmission shaft 16-5 and fork 16-6, the described cylinder 16-1 that stirs is in transmission connection the gearshift clutch spline housing 10-1 of input gear axle assembly 10), gearshift clutch spline housing 10-1 is moved back and forth on input gear axle 10-2, and gearshift clutch spline housing 10-1 realizes clutch with input splined shaft 8-2.
As shown in Figure 3,4, stir on cylinder 16-1 described in and also magnetic inductor is installed, for responding to the position of gear; The stop nut 16-3 that the position of gearshift clutch spline housing 10-1 is made up of the spring release mechanism be installed on shifting fork beam 16-2 locks.
As shown in Figure 1, 2, described lubrication system 14 comprises lubricating pump 14-1, casing lubricating oil path 14-2 and oil trap 14-3, described lubricating pump 14-1 is installed on the bottom of lower box 9-3, the oil pump driven gear 13-1 be installed on axletree 13-2 is in transmission connection lubricating pump 14-1, lubricating pump 14-1 is driven by oil pump driven gear 13-1, and by casing lubricating oil path 14-2 and oil trap 14-3 to each lubricating point fuel feeding, the pressure lubrication of pump oil is carried out to each motor element of gear-box.
As shown in Figure 1,3, described torque arm assembly 11 is connected on upper box 9-2, and torque arm assembly 11 comprises drag link body 11-1 and rubber spherical joint 11-2, and rubber spherical joint 11-2 is contained in the end of drag link body 11-1.Torque arm assembly 11 plays connection effect between axle gear box and bogie frame, and the impact shock between relaxing.
As shown in Figure 1, 2, the through place of rotation that described sealing configuration 18 is arranged on output shaft assembly 13 and input end rotary seal place of countershaft assembly 12, all adopt contactless labyrinth seal structure and include seal ring 18-1, sealing cover 18-2, underpressure chamber 18-3, oil baffle 18-4 and return port 18-5.In order to improve sealing effect, being designed with the structure such as oil baffle 18-4, larger underpressure chamber 18-3, offering larger return port 18-5 simultaneously, be convenient to the backflow of lubricant oil.
As shown in Fig. 1,2,5, described breather 15 is installed on the breather bore 9-23-3 at casing assembly 9 rear portion.Utilize the venting capability that breather 15 is good, the pressure reduction in the inside and outside portion of balance box, when ensureing that described gear-box works, inside can not form partial high pressure, is conducive to sealing and the heat radiation of gear-box, simultaneously as the inlet of lubricant oil.
As shown in Figure 6, be one application schematic diagram of the present invention, Rapid contact net comprehensive operation vehicle power system mainly comprises oil hydraulic motor 1, axle gear box 2 and 2 ', transmission shaft 3, hydraulic transmission gear box 4, motor 5, transfer case 6 and traveling pump 7 and forms.During high speed operation, be hydraudynamic drive, its power transmission line is: motor 5 → hydraulic transmission gear box 4 → axle gear box 2 ' → axle gear box 2; During low speed operation traveling, be hydraulic transmission, its power transmission line is: motor 5 → transfer case 6 → traveling pump 7 → oil hydraulic motor 1 → axle gear box 2 → axle gear box 2 '.
During Rapid contact net comprehensive operation vehicle high speed operation, adopt hydraudynamic drive, gearshift clutch spline housing 10-1 is in disengaged position with input splined shaft 8-2, now motor input splined shaft assembly 8 and input gear axle assembly 10 disconnect, and oil hydraulic motor 1 is in by disengaged condition, and power is provided by hydraulic transmission gear box 3, through "A" end of car axle gear box 2 ' and transmission shaft 3, and inputted by input flange 12-1, be effectively passed to wheel through axle gear box 2 right, thus drive car load high speed operation.During the low speed operation traveling of Rapid contact net comprehensive operation vehicle, adopt hydraulic transmission, gearshift clutch spline housing 10-1 is in engagement with input splined shaft 8-2, now motor input splined shaft assembly 8 and input gear axle assembly 10 are linked, power is provided by oil hydraulic motor 1, and transmitted by spline coupling, be effectively passed to wheel through axle gear box 2 right, thus drive car load traveling; Because hydraulic system adopts variable displacement pump, variable displacement motor driving mode, can stepless change be realized, better meet vehicle low constant speed operating speed control overflow.
Axle gear box of the present invention can meet high-speed railway upkeep operation vehicle hydraulic and the requirement of hydraulic transmission two kinds of kind of drive traction drive simultaneously, meets vehicle high-speed and runs and low constant speed operation driving requirement.
Experiment proves: adopt the mode that pump oil pressure lubrication and immersion oil splash lubrication combine, no matter vehicle high-speed, low cruise, the motor element of whole axle gear box all can obtain effectively lubricating.Adopt electronic control cylinder to drive and stir linkage mechanism, and then drive the mode of gearshift clutch spline housing movement to carry out shift transformation, mechanism is simple, space characteristics of compact layout, gearshift resistance are little, flexible, convenient, and can realize the automatic monitoring of gear, and automaticity is high; The stop nut that spring steel ball locking framework is formed locks shifting fork beam, and structure is simple, reliably spacing; Fully meet the requirement of power transmission mode conversion.
Claims (10)
1. fluid power-hydraulic pressure comprehensive driving axle gear-box, comprise casing assembly (9), motor input splined shaft assembly (8), input gear axle assembly (10), countershaft assembly (12), output shaft assembly (13), gearshift assembly (16), torque arm assembly (11), lubrication system (14), sealing configuration (18) and breather (15), it is characterized in that:
A, described casing assembly (9) comprise case lid (9-1), upper box (9-2) and lower box (9-3), and be bolted to connection together, motor input splined shaft assembly (8), input gear axle assembly (10), countershaft assembly (12) and output shaft assembly (13) are installed in casing assembly (9);
B, described motor input splined shaft assembly (8) and input gear axle assembly (10) are installed the bearing saddle bore that is supported between case lid (9-1) and upper box (9-2) and are had common first axle (19), described first axle (19) is positioned at split surface (20), described countershaft assembly (12) and output shaft (13) assembly install the bearing saddle bore be supported between upper box (9-2) and lower box (9-3), second axis (21) of countershaft assembly (12) and the 3rd axis (22) of output shaft assembly (13) are all positioned at lower split surface (23) and mutually intersect vertically,
Second axis (21) of c, described countershaft assembly (12) and the first axle (19) of input gear axle assembly (10) are parallel to each other, and have an offset distance S between the second axis (21) and first axle (19);
The input splined shaft (8-2) of d, described motor input splined shaft assembly (8) is by input gear axle (10-2) clutch of gearshift assembly (16) with input gear axle assembly (10), the active cylindrical gears (10-4) of input gear axle assembly (10) engages with the driven cylindrical gear (12-2) of countershaft assembly (12), the active helical bevel gear (12-3) of countershaft assembly (12) engages with the driven helical bevel gear (13-3) of output shaft assembly (13), and driven helical bevel gear (13-3) is fixed on axletree (13-2);
One end of the jack shaft (12-4) of e, described countershaft assembly (12) is stretched out outside casing assembly (9).
2. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described motor input splined shaft assembly (8) also comprises oil hydraulic motor (1), motor mounting flange (8-1) and clutch shaft bearing (24), described oil hydraulic motor (1) is fixedly connected with casing assembly (9) by motor mounting flange (8-1), the axle of oil hydraulic motor (1) is connected with input splined shaft (8-2) by spline, one end of input splined shaft (8-2) is supported on inside input shaft bearing (9-21-2) on upper box (9-2) by clutch shaft bearing (24), the other end is supported on outside input shaft bearing (9-21-1) between upper box (9-2) and case lid (9-1) by corresponding clutch shaft bearing (24).
3. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described input gear axle assembly (10) also comprises gearshift clutch spline housing (10-1), bearing housing (10-3) and the second bearing (25), gearshift clutch spline housing (10-1) by spline joint on input gear axle (10-2), one end of input gear axle (10-2) is supported on the internal bearings seat (9-21-3) between upper box (9-2) and case lid (9-1) by the second bearing (25), the other end is supported in the outboard shafts bearing (9-21-4) between upper box (9-2) and case lid (9-1) by corresponding second bearing (25).
4. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described countershaft assembly (12) also comprises input flange (12-1), 3rd bearing (26) and jack shaft seal ring (18-1), one end of jack shaft (12-4) is supported on the bosom bearing support (9-23-1) that is positioned between upper box (9-2) and lower box (9-3) by the 3rd bearing (26), the other end is supported on the outside middle bearing bracket (9-23-2) between upper box (9-2) and lower box (9-3) by corresponding 3rd bearing (26), described input flange (12-1) is arranged on one end of stretching out outside casing assembly (9) of jack shaft (12-4).
5. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described output shaft assembly (13) also comprises oil pump gear (13-1), the 4th bearing (27) and output shaft seal ring (13-4), and axletree (13-2) is rotatably supported on casing assembly (9) by the 4th bearing (27).
6. fluid power according to claim 3-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described gearshift assembly (16) is installed on the top of casing assembly (9), comprise and stir cylinder (16-1), shifting fork beam (16-2), stop nut (16-3), connect bearing (16-4), shift fork transmission shaft (16-5) and fork (16-6), described cylinder (16-1) of stirring is in transmission connection the gearshift clutch spline housing (10-1) of input gear axle assembly (10), gearshift clutch spline housing (10-1) is moved back and forth on input gear axle (10-2), gearshift clutch spline housing (10-1) realizes clutch with input splined shaft (8-2).
7. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described lubrication system (14) comprises lubricating pump (14-1), casing lubricating oil path (14-2) and oil trap (14-3), described lubricating pump (14-1) is installed on the bottom of lower box (9-3), the oil pump driven gear (13-1) be installed on axletree (13-2) is in transmission connection lubricating pump (14-1), lubricating pump (14-1) by casing lubricating oil path (14-2) and oil trap (14-3) to each lubricating point fuel feeding.
8. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described torque arm assembly (11) is connected on upper box (9-2), torque arm assembly (11) comprises drag link body (11-1) and rubber spherical joint (11-2), and rubber spherical joint (11-2) is contained in the end of drag link body (11-1).
9. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, it is characterized in that: described sealing configuration (18) is arranged on the through place of rotation of output shaft assembly (13) and input end rotary seal place of countershaft assembly (12), all adopt contactless labyrinth seal structure and include seal ring (18-1), sealing cover (18-2), underpressure chamber (18-3), oil baffle (18-4) and return port (18-5).
10. fluid power according to claim 1-hydraulic pressure comprehensive driving axle gear-box, is characterized in that: described breather (15) is installed in the breather bore (9-23-3) at casing assembly (9) rear portion.
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| CN201310266316.0A CN104251296B (en) | 2013-06-28 | 2013-06-28 | Hydraulic-hydraumatic comprehensive driving axle gear box |
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| CN201310266316.0A CN104251296B (en) | 2013-06-28 | 2013-06-28 | Hydraulic-hydraumatic comprehensive driving axle gear box |
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| CN104251296B true CN104251296B (en) | 2015-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111531462A (en) * | 2020-05-11 | 2020-08-14 | 太原理工大学 | Fluid abrasive finishing device and method for tubular workpiece |
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| CN105299194B (en) * | 2015-12-08 | 2018-03-02 | 资阳中车传动有限公司 | A kind of underground engines axle gear box |
| CN105402386B (en) * | 2015-12-22 | 2018-05-08 | 常州市瑞泰工程机械有限公司 | Hydraulic power axle gear box |
| CN105927734B (en) * | 2016-06-29 | 2020-08-18 | 中国北方车辆研究所 | High-low speed conversion clutch control mechanism for axle gear box |
| CN106402343A (en) * | 2016-06-29 | 2017-02-15 | 中国北方车辆研究所 | Axle shaft components for axle gear box |
| CN105937615A (en) * | 2016-06-29 | 2016-09-14 | 中国北方车辆研究所 | Efficient lubricating and cooling structure for axle gear box |
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| CN104251296A (en) | 2014-12-31 |
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