CN208605587U - A kind of wheel digging fluid power speed change system - Google Patents

Abstract

The utility model discloses a kind of wheel digging fluid power speed change system, it solves when needing to overhaul oil pump, it needs to split shell, fluid torque-converter and gear completely, the more difficult problem of the dismounting of oil pump, its key points of the technical solution are that: including shell, torque-converters output precision that the enclosure interior is provided with fluid torque-converter and connect with torque converter drive；The fluid torque-converter includes turbine, guide wheel and pump impeller；The torque-converters output precision includes the turbine output precision connecting with worm gear drive and the pump impeller connector sleeve with pump impeller transmission connection；The turbine output precision is axially sequentially connected with the gear that output end stretches out shell；The first output gear of coaxial arrangement is installed on the pump impeller connector sleeve；First output gear is radially engaged with the pump seat of oil feed pump installation by idle pulley, and the pump seat includes the first input gear engaged with idle pulley to drive oil pump to rotate, and oil pump has the characteristics that easy to disassemble.

Description

A kind of wheel digging fluid power speed change system

Technical field

The utility model relates to speed changer, in particular to a kind of wheel digs fluid power speed change system.

Background technique

Wheeled excavator is the wheeled excavator tool driven using vehicle bridge, compared to traditional crawler-mounted excavator, It is fast, it can be achieved that remote voluntarily transition to have many advantages, such as motor-driven, the flexible, speed of travel, and saves management, transportation cost.In machine The fields such as field, municipal administration, gardens, town and country transformation, irrigation and water conservancy and rapid rush-repair are fully used.With China's economic structure Adjustment, wheel excavator will be applied to more and more construction in.

Gearbox is important one of the transmission parts of excavator, and the speed and torque that it is responsible for transmitting in engine pass to Final transmission system changes the transmission ratio between engine and wheel, realizes the advance and backward gear manipulation of excavator, and can realize The power that cutting is transmitted to running gear in the case where engine operating is convenient for adapting to the needs of excavator operation and traveling The starting and parking safety of engine.

As Authorization Notice No. be CN105697711B patent disclosure a kind of excavator fluid power gear shift system, including Cabinet, fluid torque-converter, oil pump, gear and transfer box assembly, fluid torque-converter, oil pump, gear and transfer Box assembly is all set in cabinet, and the output end of fluid torque-converter and the input terminal of gear are sequentially connected, gear The input terminal of output end and transfer box assembly is sequentially connected, and fluid torque-converter, gear, oil pump and transfer box assembly are total to Although the overall volume of gear shift system can be reduced with the mode of a cabinet, its oil pump be located at fluid torque-converter with Between gear, when needing to overhaul oil pump, need to split shell, fluid torque-converter and gear, oil pump completely Dismounting it is more difficult.

Utility model content

The purpose of the utility model is to provide a kind of wheels to dig fluid power speed change system, and oil pump has the characteristics that easy to disassemble.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of wheel digging fluid power speed change system, including shell, the enclosure interior are provided with fluid torque-converter and and fluid power The torque-converters output precision of torque-converters transmission connection；The fluid torque-converter includes turbine, guide wheel and pump impeller；The torque-converters Output precision includes the turbine output precision connecting with worm gear drive and the pump impeller connector sleeve with pump impeller transmission connection；It is described Turbine output precision is axially sequentially connected with the gear that output end stretches out shell；It is installed on the pump impeller connector sleeve coaxial The first output gear being arranged；First output gear is radially engaged with the pump seat of oil feed pump installation, the pump by idle pulley Seat includes the first input gear engaged with idle pulley to drive oil pump to rotate.

By using above-mentioned technical proposal, the speed changer that fluid torque-converter and gear are composed be can be realized automatically Speed change does not need mechanical clutch, and only three low speed, high speed and reversing gears, drives very easily, use Not stepping on clutch, do not need shift hunting yet, run smoothly, low speed torque is big, easy to operate；

And since pump seat is by idle pulley radial direction the first output gear of engagement, axially installed compared to pump seat in the housing, energy Enough reduce the axial volume of shell, meanwhile, the radially installed of pump seat can be such that the length of turbine output precision shortens, and pass through reduction The length of turbine output precision, and then improve the precision and stability of axis；By the design of above structure, the fluid power can be made to become Speed system overall structure is more compact, can reduce to need to install on wheel digging machine and axially take up an area required for the fluid power speed change system Volume facilitates the structure of vehicle to arrange to make the structure of vehicle can be more compact；

Simultaneously as pump seat is arranged on the radial position of fluid torque-converter, with fluid torque-converter and gear Coupling part is less, and is nearly independent of shell, when pump seat or the oil pump being mounted on pump seat when something goes wrong, it is convenient to Lower oil pump is dismantled from shell, and perhaps pump seat facilitates the maintenance of oil pump or pump seat.

Preferably, the shell includes for the converter cover of fluid torque-converter installation and for the change of gear Fast device shell, the case of transmission, which is installed in, to be made to be formed with confession between case of transmission and converter cover on converter cover The connecting cavity of pump seat and idle pulley installation, the torque-converters output precision are successively worn by rheostat shell, connecting cavity and speed change Device shell is simultaneously sequentially connected with fluid torque-converter, gear and pump seat.

By using above-mentioned technical proposal, shell is divided into converter cover and case of transmission, makes torque-converters and other Component sets up separately in two chambers, improves convenience and stability in assembling process first；Secondly, compared to hydraulic moment changeable Device, torque-converters output precision, gear and pump seat are installed directly in same housing, and case of transmission and converter cover are all It can play the role of support positioning, to fluid torque-converter and/or gear to further increase the stability of drive mechanism.

Preferably, the shell offers connection through-hole along the axial location of the first input gear, the pump seat is also wrapped It includes and is threaded through in connection through-hole for controlling the slippage pump spline housing of repairing pump operation, being embedded in slippage pump spline housing and first For controlling the main pump connector sleeve of main pump operation between input gear, the company of being rotatably connected on also is arranged on the main pump connector sleeve Connect hole in bearing cage, the hull outside be installed with connect through-hole be coaxially disposed oil pump pedestal, the oil pump pedestal It include the slippage pump pedestal for slippage pump installation and the main pump pedestal for main pump installation.

By using above-mentioned technical proposal, pump seat be pressed on hull outside realize the connection of pump seat and shell first compared to Pump seat is fully installed in shell, and the structure between shell and pump seat can be made more compact, compared to shell with directly with pump Seat is integrally attached to, and the fastness of structure is more preferable, and the installation accuracy of pump seat can be made higher；Simultaneously as slippage pump spline housing and Main pump connector sleeve is coaxial and fixed, and the slippage pump being mounted on pump seat and main pump can be made to move synchronously, and improves synchronism.

Preferably, the turbine output precision includes the turbine wheel shaft connecting with turbine and is connected on turbine wheel shaft Second output gear, the turbine wheel shaft include axis body and with the integrally formed third output gear of axis body, the variable-speed motor Structure include export shafting, engaged with third output gear one grade of shafting, engaged with the second output gear two grades of shaftings, and The R shelves shafting of one grade of shafting engagement；The output shafting includes the master for being coaxially disposed with turbine wheel shaft but not contacting with turbine wheel shaft Output shaft, the 4th output gear for being set on main output shaft and being engaged with one grade of shafting and the engaged for two grades of shaftings the 5th Output gear.

By using above-mentioned technical proposal, turbine output precision and output shafting, one grade of shafting, two grades of shaftings and R grades of axis The matching design of system can make the electrodeless adjustment of gear realization low speed, high speed and three gears of moving backward.

Preferably, the case of transmission be internally provided with for separate gear and torque-converters output precision every Plate, offer on the partition first positioning hole worn for turbine output precision, the second location hole worn for one grade of shafting, The third location hole worn for two grades of shaftings and the 4th location hole worn for R grades of shaftings, the turbine output precision and Between a positioning hole, one grade between shafting and second location hole, between two grades of shaftings and third location hole and R grades of shaftings and the First bearing is provided between four location holes.

By using above-mentioned technical proposal, first positioning hole, second location hole, third location hole and the 4th location hole can Positioning main output shaft, one grade of shafting, two grades of shaftings and R grades of shaftings are respectively used to, keep its operation more stable, and first bearing Design can be used in reducing between first positioning hole and main output shaft, between second location hole and one grade of shafting, third location hole Frictional force between two grades of shaftings between the 4th location hole and R grades of shaftings reduces abrasion, improves the smoothness in operational process Property.

Preferably, one grade of shafting includes the first connecting shaft being threaded through in second location hole and is set in In one connecting shaft and engage one grade of transmission gear of third output gear, be set in the first connecting shaft and with the 4th output gear It one grade of output gear of engagement and is set in the first connecting shaft and between one grade of transmission gear and one grade of output gear One grade of clutch.

By using above-mentioned technical proposal, one grade of shafting passes through the first connecting shaft, one grade of transmission gear and one grade of output gear The design of wheel, which can be realized, makes to export shafting output low gear, and one grade of clutch can be used in one grade of shafting of control from Close braking.

Preferably, two grades of shaftings include the second connecting shaft being threaded through in third location hole, are set in second In connecting shaft and two grades of transmission gears of the second output gear are engaged, the second connecting shaft is set in and is engaged with the 5th output gear Two grades of output gears and two grades of clutches being set between two grades of transmission gears and two grades of output gears.

By using above-mentioned technical proposal, two grades of shaftings pass through the second connecting shaft, two grades of transmission gears and two grades of output gears The design of wheel, which can be realized, makes to export shafting output high gear, and two grades of clutches can be used in two grades of shaftings of control from Close braking.

Preferably, the R grades of shafting includes the third connecting shaft being threaded through in the 4th location hole, is set in third company In spindle and engage the R shelves transmission gear of one grade of transmission gear, the R that is set in third connecting shaft and engages the 4th output gear Shelves output gear and it is set in R shelves clutch in third connecting shaft and between R grades of transmission gears and R grades of output gears Structure.

By using above-mentioned technical proposal, R grades of shaftings pass through third connecting shaft, R grades of transmission gears and R grades of output gears Design, which can be realized, makes to export shafting output reverse gear, and R grades of clutches can be used in controlling the clutch system of R grades of shaftings It is dynamic.

Preferably, the output end that the shell is located at main output shaft is circumferentially installed with Bevel Gear Seat, the main output shaft Output end be arranged with drive bevel gear, be rotatably connected to the dynamic bevel gear engaged with drive bevel gear on the Bevel Gear Seat Component, the dynamic bevel gear component include the output spline for positioning dynamic bevel gear, are set on output spline Drive flange and the second bearing being embedded between output spline and Bevel Gear Seat.

By using above-mentioned technical proposal, the design of drive bevel gear and dynamic bevel gear can be used in the defeated of main output shaft The changed course of outlet, and Bevel Gear Seat can be used in the positioning of dynamic bevel gear, keep it more stable, the design of second bearing then can The friction between Bevel Gear Seat and dynamic bevel gear is enough reduced, abrasion is reduced, improves fluency when dynamic bevel gear operation.

Preferably, being also installed with oil adsorption filter on the shell, formed between one grade of shafting and two grades of shaftings There is the resigning chamber for oil adsorption filter installation.

By using above-mentioned technical proposal, the oil adsorption filter being installed on shell can remove dust in lubricating oil, Oil adsorption filter is installed in one grade of shafting to protect speed change system by the impurity such as metallic particles, carbon precipitates and coal soot Between two grades of shaftings, the vacant position of enclosure interior can make full use of, compared to other positions are mounted on, by oil adsorption filter Oil adsorption filter is also installed on shell, the oil adsorption filter can be not necessarily between one grade of shafting and two grades of shaftings Increase the radial area of shell.

In conclusion the utility model has the following beneficial effects:

The utility model keeps it almost only by the way that pump seat is passed through idle pulley radially installed in the side of torque-converters output precision Stand on shell, when pump seat or the oil pump being mounted on pump seat when something goes wrong, it is convenient to dismantled from shell lower oil pump or Person's pump seat facilitates the maintenance of oil pump or pump seat；Simultaneously as pump seat is arranged radially, the axis of speed change system can be shortened Turbine wheel shaft stability is improved so as to shorten the length of turbine wheel shaft to diameter, and then improves the precision and stability of speed change system.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of wheel digging fluid power speed change system；

Fig. 2 is a kind of schematic top plan view of wheel digging fluid power speed change system；

Fig. 3 is the diagrammatic cross-section of A-A in Fig. 2；

Fig. 4 is the diagrammatic cross-section of B-B in Fig. 2；

Fig. 5 is the configuration schematic diagram of fluid torque-converter and torque-converters output precision；

Fig. 6 is the schematic diagram of the section structure of pump seat；

Fig. 7 is the configuration schematic diagram of gear box casing and gear.

In figure, 1, shell；11, converter cover；111, circular cowling；112, pedestal；113, the first installation cavity；114, first Through-hole；12, case of transmission；121, protective enclosure；122, partition；123, end cap；124, second location hole；125, third positions Hole；126, first positioning hole；127, the second through-hole；13, connecting cavity；14, third connecting hole；15, through-hole is connected；16, oil suction is filtered Clear device；17, speed change cavity；2, fluid torque-converter；21, input terminal；211, seat is served as a contrast；212, drive plate；213, flexible disk；22, pump impeller Cover；221, cover disk body；222, ring seat is positioned；223, viewing hole；224, the first flange；23, pump impeller；231, pump impeller disk body； 232, the first connecting hole；233, pump impeller blade；234, pump impeller lead ring；235, the second flange；236, the first inner groove；237, first Water conservancy diversion annular groove；24, turbine；241, turbine disk body；242, the second connecting hole；243, turbo blade；244, turbine lead ring；245, Two inner grooves；246, the second water conservancy diversion annular groove；25, guide wheel；251, outer ring is positioned；252, inner ring is positioned；253, guide vane；3, become Square device output precision；31, turbine output precision；311, turbine wheel shaft；3111, shaft part is inputted；3112, shaft part is exported；3113, third Output gear；312, the second output gear；32, pump impeller connector sleeve；321, locating sleeve；322, fixed ring；33, connecting flange； 34, wheel stand；341, oil-through hole；35, divide oil jacket；36, the first output gear；37, idle pulley；371, idler shaft；4, gear； 41, first bearing；42, shafting is exported；421, main output shaft；422, the 4th output gear；423, the 5th output gear；43, one Shelves shafting；431, the first connecting shaft；432, one grade of transmission gear；433, one grade of output gear；434, one grade of clutch；44, Two grades of shaftings；441, the second connecting shaft；442, two grades of transmission gears；443, two grades of output gears；444, two grades of clutches； 45, R grades of shaftings；451, third connecting shaft；452, R grades of transmission gears；453, R grades of output gears；454, R grades of clutches；5, Pump seat；51, the first input gear；52, slippage pump spline housing；53, main pump connector sleeve；54, bearing cage；551, slippage pump pedestal； 552, main pump pedestal；6, Bevel Gear Seat；61, drive bevel gear；62, dynamic bevel gear；63, output spline；64, driving method It is blue；65, second bearing.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Referring to figure 1, figure 2 and figure 3, a kind of wheel digs fluid power speed change system, includes shell 1 and is sequentially coaxially installed in shell Fluid torque-converter 2, torque-converters output precision 3 and gear 4 inside body 1.

Referring to Fig. 1, Fig. 3 and Fig. 4, torque-converters output precision 3 is also radial to be sequentially connected with pump seat 5, and pump seat 5 is installed in shell On 1.Shell 1 includes the converter cover 11 for the installation of fluid torque-converter 2 and the case of transmission for the installation of gear 4 12.Case of transmission 12 is threaded on converter cover 11, is formed with the connecting cavity 13 fixed for pump seat 5 between the two. Torque-converters output precision 3 successively wear by rheostat shell 1, connecting cavity 13 and case of transmission 12 and with fluid torque-converter 2, Gear 4 and pump seat 5 are sequentially connected.

Referring to Fig. 3 and Fig. 4, converter cover 11 includes to be set in the circumferential circular cowling 111 and one of fluid torque-converter 2 The body formed pedestal 112 in the wherein one end of circular cowling 111.Pedestal 112 is enclosed embedding for fluid torque-converter 2 with circular cowling 111 The first installation cavity 113 entered.Pedestal 112 is located at for offering at the axis of circular cowling 111 and wearing for torque-converters output precision 3 One through-hole 114.

Referring to Fig. 3, Fig. 4 and Fig. 5, fluid torque-converter 2 includes the input terminal 21 and input terminal connecting with driving engine The pump impeller cover 22 of 21 threaded connections, is embedded between pump impeller cover 22 and pump impeller 23 pump impeller 23 being threadedly coupled with pump impeller cover 22 Turbine 24 and the guide wheel 25 being embedded between turbine 24 and pump impeller 23.Input terminal 21, pump impeller cover 22, turbine 24,25 and of guide wheel Pump impeller 23 is coaxially disposed.Input terminal 21 includes to serve as a contrast seat 211, the drive plate 212 being fixed on lining seat 211 and be fixed on lining On seat 211 and it is connected to flexible disk 213 of the drive plate 212 towards 22 surface of pump impeller cover.

Referring to Fig. 3, Fig. 4 and Fig. 5, pump impeller cover 22 include discoidal cover disk body 221 and with cover disk body 221 1 Body formed positioning ring seat 222 positions ring seat 222 along its axis and offers viewing hole 223.Lining seat 211 is bolted to visually The circumferential direction in hole 223 is to close viewing hole 223.One end of cover disk body 221 towards pump impeller 23 is provided with the positioned for pump impeller 23 One flange 224.

Referring to Fig. 3, Fig. 4 and Fig. 5, pump impeller 23 includes rounded pump impeller disk body 231, is provided with 231 axis of pump impeller disk body If the first connecting hole 232 of line position, the dry pump that 231 inner wall of pump impeller disk body is circumferentially arranged in along 231 axis of pump impeller disk body equalization Impeller blade 233 and the pump impeller lead ring 234 for being installed on pump impeller blade 233 and connecting all pump impeller blades 233.Pump impeller disk body 231 opening periphery is provided with the second flange 235 with the cooperation of the first flange 224, by being threaded through the first flange 224 and second The locking of bolt and the nut realization cover disk body 221 and pump impeller disk body 231 that are connected on bolt on flange 235.Pump vane Piece 233, which tilts, to be equidistantly welded on pump impeller disk body 231, and the positioning welded for pump impeller lead ring 234 is offered on pump impeller blade 233 Annular groove.Positioning ring groove and disk body are coaxially disposed.The inner sidewall of pump impeller lead ring 234 offers the first inner groove being embedded for guide wheel 25 236.And pump impeller lead ring 234 is located therein and offers first water conservancy diversion annular groove 237 of the notch towards turbine 24, the first water conservancy diversion annular groove The 237 arc-shaped deep gouges arc-shaped for slot bottom.

Referring to Fig. 3, Fig. 4 and Fig. 5, turbine 24 include opening towards pump impeller disk body 231 turbine disk body 241, be located at whirlpool It takes turns the second connecting hole 242 of 241 axial location of disk body, be circumferentially arranged in turbine disk body 241 along 241 axis of turbine disk body equalization Several turbo blades 243 of wall and the turbine lead ring 244 for being installed on turbo blade 243 and connecting all turbo blades 243. The opening of turbine disk body 241 is connected in the opening of pump impeller disk body 231, and is offered on turbine lead ring 244 and the first inner groove Second inner groove 245 of 236 cooperations and the second water conservancy diversion annular groove 246 cooperated with the first water conservancy diversion annular groove 237.Guide wheel 25 includes It is embedded the positioning outer ring 251 in 25 annular groove of 25 annular groove of the first guide wheel and the second guide wheel, determines with what positioning outer ring 251 was coaxially disposed Position inner ring 252 and connection positioning outer ring 251 and several guide vanes 253 for positioning inner ring 252.First connecting hole 232, second Connecting hole 242,25 inner ring of guide wheel axis be overlapped with the axis of first through hole 114.

Referring to Fig. 3, Fig. 4 and Fig. 5, torque-converters output precision 3 includes the turbine output group being threaded through in first through hole 114 Part 31 and pump impeller connector sleeve 32.Turbine output precision 31 includes to be threaded through in the second connecting hole 242 and by connecting flange 33 The turbine wheel shaft 311 rotated synchronously with turbine 24 and the second output gear 312 being installed on turbine wheel shaft 311.Turbine wheel shaft 311 wraps Sequentially connected input shaft part 3111, connecting shaft section and output shaft part 3112 are included.Connecting flange 33 is bolted on Turbine 24 is located at the circumferential direction of the second connecting hole 242, and input shaft part 3111 is threaded through in connecting flange 33 and leads to connecting flange 33 Spline is crossed to fix.Connecting shaft section, which passes through the first installation cavity 113 and connecting cavity 13, makes output shaft part 3112 be located at case of transmission 12 In inner cavity.Second output gear 312 is fixed on output shaft part 3112, and is exported shaft part 3112 and be located at the second output gear 312 Rear also integrally formed with same third output gear 3113.

Referring to Fig. 3, Fig. 4 and Fig. 5, pump impeller connector sleeve 32 include the locating sleeve 321 that is threaded through in first through hole 114 with And it is vertically connected on fixed ring 322 of the locating sleeve 321 towards 23 one end edge of pump impeller, between fixed ring 322 and pump impeller 23 Being bolted enables pump impeller 23 to rotate synchronously with pump impeller connector sleeve 32, and locating sleeve 321 is set on turbine wheel shaft 311, And it can be rotated relative to turbine wheel shaft 311.It is also embedded between locating sleeve 321 and turbine wheel shaft 311 and locating sleeve 321 and turbine The wheel stand 34 that axis 311 is coaxially disposed.One end of wheel stand 34 is installed on case of transmission 12, and the other end of wheel stand 34 is worn It is located in positioning inner ring 252,25 relative idler seat 34 of guide wheel is enable to be rotated.It is also provided on wheel stand 34 for hydraulic oil Into and/or discharge fluid torque-converter 2 oil-through hole 341, be also embedded between wheel stand 34 and turbine wheel shaft 311 point oil jacket 35 use In guiding oil circuit.

Referring to Fig. 3, Fig. 4 and Fig. 5, locating sleeve 321 is located at pedestal 112 and is arranged with backwards to one end of the first installation cavity 113 First output gear 36 is not contacted close to pedestal 112 but with pedestal 112, led between the first output gear 36 and locating sleeve 321 Cross spline connection.First output gear 36 is engaged with the first input gear 51 being installed in pump seat 5 by idle pulley 37.

Referring to Fig. 3, Fig. 4 and Fig. 5, case of transmission 12 includes that ring is located at the circumferential protective enclosure of case of transmission 12 121, vertical 121 axis of protective enclosure is horizontally installed on partition 122 inside protective enclosure 121 and for closing transmission case End cap 123 of the body 12 far from 11 one end of converter cover, end cap 123 are threadedly coupled with protective enclosure 121.Case of transmission 12 One end is installed on converter cover 11 by bolt.Connecting cavity 13 is enclosed by pedestal 112, partition 122 and protective enclosure 121 It is formed.The third connecting hole 14 being connected to connecting cavity 13 is offered on case of transmission 12.At third connecting hole 14 and idle pulley 37 In same axis, and the idler shaft 371 for being arranged and being rotatablely connected for idle pulley 37 is plugged in third connecting hole 14.

Referring to fig. 4 and Fig. 6, it is also provided on case of transmission 12 and converter cover 11 and to be equally connected to connecting cavity 13 Through-hole 15 is connected, through-hole 15 is connected and the first input gear 51 is on same axis.Pump seat 5 includes slippage pump spline housing 52 And it is set in the main pump connector sleeve 53 on slippage pump spline housing 52, slippage pump spline housing 52 and main pump connector sleeve 53 are coaxially disposed And it is fixed by spline.Main pump connector sleeve 53 is embedded the axial location in the first input gear 51, and main pump connector sleeve 53 and One output gear 36 is equally fixed by spline.There are gap, gaps between main pump connector sleeve 53 and the inner wall for connecting through-hole 15 Inside it is embedded with the bearing cage 54 for enabling main pump connector sleeve 53 to rotate relative to shell 1, the inner ring main pump connector sleeve 53 of bearing cage 54 Fixed, the outer ring of bearing holder (housing, cover) is connected on the inner wall of connection through-hole 15.One end of slippage pump spline housing 52 is from positioned at torque converter casing It is stretched out in the connection through-hole 15 of body 11, one end of main pump connector sleeve 53 is stretched from the connection through-hole 15 for being located at case of transmission 12 Out.The oil pump pedestal for being fixedly provided on 1 outside of shell and connecting the coaxial arrangement of through-hole 15, oil pump pedestal includes to open up threaded hole For slippage pump installation slippage pump pedestal 551 and open up the main pump pedestal 552 that threaded hole installs for main pump.

Referring to Fig. 3, Fig. 4 and Fig. 7, gear 4 is installed in gear box casing 1 and is located at the connecting cavity 13 of partition 122 backwards Speed change cavity 17 in.The first positioning hole 126 of connection connecting cavity 13 and speed change cavity 17 is offered on partition 122, is wound around first The circumferential second location hole 124 of location hole 126 and third location hole 125 and the 4th location hole in blind hole.Turbine wheel shaft 311 Output shaft part 3112 is threaded through in first positioning hole 126, and is exported between shaft part 3112 and first positioning hole 126 by being set in The first bearing 41 exported on shaft part 3112 is rotatablely connected.Second output gear 312 and third output gear 3113 are respectively positioned on change In fast chamber 17.Gear 4 includes the one grade of shafting 43 and second for exporting shafting 42, engaging with third output gear 3113 Two grades of shaftings 44 of the engagement of output gear 312, the R shelves shafting 45 engaged with one grade of shafting 43.

Referring to Fig. 3, Fig. 4 and Fig. 7, exporting shafting 42 includes to be coaxially disposed but do not connect with turbine wheel shaft 311 with turbine wheel shaft 311 The main output shaft 421 of touching, the 4th output gear 422 for being integrally formed on main output shaft 421 and being engaged with one grade of shafting 43 with And it is installed on main output shaft 421 and for the 5th output gear 423 of two grades of shaftings 44 engagement.

Referring to Fig. 3, Fig. 4 and Fig. 7, one grade of shafting 43 includes the first connecting shaft 431 being threaded through in second location hole 124 And it is set in the first connecting shaft 431 and engages one grade of transmission gear 432 of third output gear 3113, be set in the first company One grade of output gear 433 being engaged in spindle 431 and with the 4th output gear 422 and be set in the first connecting shaft 431 and One grade of clutch 434 between one grade of transmission gear 432 and one grade of output gear 433.First connecting shaft 431 and second It is rotatablely connected between location hole 124 by first bearing 41.

Referring to Fig. 3, Fig. 4 and Fig. 7, two grades of shaftings 44 include the second connecting shaft being threaded through in third location hole 125 441, it is set in the second connecting shaft 441 and engages two grades of transmission gears 442 of the second output gear 312, be set in the second company Spindle 441 and the two grades of output gears 443 engaged with the 5th output gear 423 and it is set in two grades of transmission gears 442 and two Two grades of clutches 444 between shelves output gear 443.Equally by the between second connecting shaft 441 and third location hole 125 The rotation connection of one bearing 41.

Referring to Fig. 3, Fig. 4 and Fig. 7, R grades of shaftings 45 include the third connecting shaft 451 being threaded through in the 4th location hole, set It is located in third connecting shaft 451 and engages the R shelves transmission gear 452 of one grade of transmission gear 432, be set in third connecting shaft 451 It goes up and engages the R shelves output gear 453 of the 4th output gear 422 and be set in third connecting shaft 451 and be located at R grades of transmissions R shelves clutch 454 between gear 452 and R grades of output gears 453.It is same between third connecting shaft 451 and the 4th location hole It is rotatablely connected by first bearing 41.

Referring to Fig. 3, Fig. 4 and Fig. 7, case of transmission 12 is also installed with oil adsorption filter 16, the end of oil adsorption filter 16 It is embedded in the resigning chamber by being formed between one grade of shafting 43 and two grades of shaftings 44.It is offered on end cap 123 for main output shaft 421 The second through-hole 127 for wearing of output end, the second through-hole 127, first through hole 114 and first positioning hole 126 are coaxially set. The output end that end cap 123 is located at main output shaft 421 is circumferentially fixedly provided with Bevel Gear Seat 6.The output end of main output shaft 421 is installed with The drive bevel gear 61 rotated synchronously with main output shaft 421.Be rotatably connected on Bevel Gear Seat 6 it is vertical with drive bevel gear 61 and 62 component of dynamic bevel gear of engagement.The third through-hole for the positioning of 62 component of dynamic bevel gear, third are offered on Bevel Gear Seat 6 The axis of through-hole is vertical with the axis of the second through-hole 127.62 component of dynamic bevel gear includes to engage with drive bevel gear 61 Dynamic bevel gear 62, the output spline 63 being threaded through in third through-hole, the drive flange for being set in 63 one end of output spline 64 and the second bearing 65 that is embedded between output spline 63 and third through-hole, dynamic bevel gear 62 be installed in output flower Key axis 63 is not connected with one end of drive flange 64.

Wherein one grade of clutch, 434, two grades of clutches 444 and R grades of clutches 454 are wet clutch, Can according between one grade of transmission gear 432 of oil pressure cntrol and one grade of output gear 433, two grades of transmission gears 442 and two grades output Between gear 443, R grades of transmission gears 452 and R grades of output gears 453 whether realize synchronous rotation.

When speed change system installation, it is installed in the cabinet of wheel excavator.It is connected on slippage pump pedestal 551 Slippage pump is to give fluid torque-converter fuel feeding.Main pump is connected on main pump pedestal 552 to reach control one to entire speed change system fuel feeding Shelves 434, two grades of clutches 444 of clutch and R grades of 454 clutches of clutch have profit to replace the purpose of gear Sliding effect.

When the speed change system in use, kinetic energy is passed to fluid torque-converter 2 by input terminal 21 by engine.Input terminal 21 drive pump impeller 23 to rotate by pump impeller cover 22, and pump impeller 23 drives pump impeller connector sleeve 32 to rotate synchronously, to make to be installed in pump impeller The first output gear 36 on connector sleeve 32 rotates the first input gear 51 by idle pulley 37, and the first input gear 51 can The slippage pump spline housing 52 and main pump connector sleeve 53 fixed with it is driven to rotate synchronously, to make the repairing being installed on pump seat 5 Pump and main pump synchronous operation, achieve the purpose that give fluid torque-converter 2 and gear 4 fuel feeding.Meanwhile pump impeller 23 passes through hydraulic oil Turbine 24 is driven to rotate, turbine 24 will be turned round after turbine wheel shaft 311 passes through 4 speed change of gear by 311 output torque of turbine wheel shaft Square is exported from main output shaft 421.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of wheel digs fluid power speed change system, including shell (1), which is characterized in that the shell (1) is internally provided with fluid power change Square device (2) and the torque-converters output precision (3) being sequentially connected with fluid torque-converter (2)；The fluid torque-converter (2) includes Turbine (24), guide wheel (25) and pump impeller (23)；The torque-converters output precision (3) includes the whirlpool with turbine (24) transmission connection Take turns output precision (31) and the pump impeller connector sleeve (32) with pump impeller (23) transmission connection；The turbine output precision (31) is axial It is sequentially connected with the gear (4) that output end stretches out shell (1)；Coaxial arrangement is installed on the pump impeller connector sleeve (32) First output gear (36)；First output gear (36) is radially engaged with the pump seat of oil feed pump installation by idle pulley (37) (5), the pump seat (5) includes the first input gear (51) engaged with idle pulley (37) to drive oil pump to rotate.

2. a kind of wheel according to claim 1 digs fluid power speed change system, which is characterized in that the shell (1) includes confession The converter cover (11) that fluid torque-converter (2) is installed and the case of transmission (12) for gear (4), the speed changer Shell (12), which is installed on converter cover (11), to be made to be formed between case of transmission (12) and converter cover (11) for pump The connecting cavity (13) of seat (5) and idle pulley (37) installation, the torque-converters output precision (3) successively wear by rheostat shell (1), connecting cavity (13) and case of transmission (12) and with fluid torque-converter (2), gear (4) and pump seat (5) be sequentially connected.

3. a kind of wheel according to claim 2 digs fluid power speed change system, which is characterized in that the shell (1) is defeated along first The axial location for entering gear (51) offers connection through-hole (15), and the pump seat (5) further includes being threaded through connection through-hole (15) In for control repairing pump operation slippage pump spline housing (52), be embedded in slippage pump spline housing (52) and the first input gear (51) for controlling the main pump connector sleeve (53) of main pump operation between, rotation connection is also arranged on the main pump connector sleeve (53) Bearing cage (54) in connection through-hole (15), the external oil for being installed with and connecting through-hole (15) coaxial arrangement of the shell (1) Pump seat body, the oil pump pedestal include the slippage pump pedestal (551) for slippage pump installation and the main pump seat for main pump installation Body (552).

4. a kind of wheel according to claim 2 digs fluid power speed change system, which is characterized in that the turbine output precision (31) It include the turbine wheel shaft (311) being connect with turbine (24) and the second output gear (312) being connected on turbine wheel shaft (311), The turbine wheel shaft (311) include axis body and with the integrally formed third output gear (3113) of axis body, the gear (4) include export shafting (42), one grade of shafting (43) being engaged with third output gear (3113), and the second output gear (312) the two grades of shaftings (44) engaged, the R shelves shafting (45) engaged with one grade of shafting (43)；The output shafting (42) includes There is the main output shaft (421) for being coaxially disposed with turbine wheel shaft (311) but not contacting with turbine wheel shaft (311), be set in main output shaft (421) the 5th of the 4th output gear (422) and confession two grades of shaftings (44) engagement engaged on and with one grade of shafting (43) is defeated Gear (423) out.

5. a kind of wheel according to claim 4 digs fluid power speed change system, which is characterized in that in the case of transmission (12) Portion is provided with the partition (122) for separating gear (4) and torque-converters output precision (3), opens up on the partition (122) There are the first positioning hole (126) worn for turbine output precision (31), the second location hole worn for one grade of shafting (43) (124), the third location hole (125) worn for two grades of shaftings (44) and the 4th location hole worn for R grades of shaftings (45), institute State between turbine output precision (31) and first positioning hole (126), between one grade of shafting (43) and second location hole (124), two First axle is provided between shelves shafting (44) and third location hole (125) and between R grades of shaftings (45) and the 4th location hole Hold (41).

6. a kind of wheel according to claim 4 digs fluid power speed change system, which is characterized in that one grade of shafting (43) includes There is the first connecting shaft (431) being threaded through in second location hole (124) and is set on the first connecting shaft (431) and engages One grade of transmission gear (432) of three output gears (3113), be set on the first connecting shaft (431) and with the 4th output gear (422) engage one grade of output gear (433) and be set on the first connecting shaft (431) and be located at one grade of transmission gear (432) one grade of clutch (434) between one grade of output gear (433).

7. a kind of wheel according to claim 4 digs fluid power speed change system, which is characterized in that two grades of shaftings (44) include There is the second connecting shaft (441) being threaded through in third location hole (125), be set on the second connecting shaft (441) and engages second Two grades of transmission gears (442) of output gear (312) are set in the second connecting shaft (441) and nibble with the 5th output gear (423) The two grades of output gears (443) closed and be set between two grades of transmission gears (442) and two grades of output gears (443) two grades Clutch (444).

8. a kind of wheel according to claim 6 digs fluid power speed change system, which is characterized in that the R grades of shafting (45) include There is the third connecting shaft (451) being threaded through in the 4th location hole, be set on third connecting shaft (451) and engages one grade of driving cog The R shelves transmission gear (452) for taking turns (432), the R shelves for being set on third connecting shaft (451) and engaging the 4th output gear (422) Output gear (453) and be set on third connecting shaft (451) and be located at R grades of transmission gears (452) and R grades of output gears (453) the R shelves clutch (454) between.

9. a kind of wheel according to claim 4 digs fluid power speed change system, which is characterized in that it is defeated that the shell (1) is located at master The output end of shaft (421) is circumferentially installed with Bevel Gear Seat (6), and the output end of the main output shaft (421) is arranged with initiative taper Dynamic bevel gear (62) component engaged with drive bevel gear (61) is rotatably connected on gear (61), the Bevel Gear Seat (6), Dynamic bevel gear (62) component includes the output spline (63) for positioning dynamic bevel gear (62), is set in output spline Drive flange (64) on axis (63) and the second bearing being embedded between output spline (63) and Bevel Gear Seat (6) (65).

10. a kind of wheel according to claim 4 digs fluid power speed change system, which is characterized in that also installed on the shell (1) Have oil adsorption filter (16), is formed between one grade of shafting (43) and two grades of shaftings (44) and is installed for oil adsorption filter (16) Resigning chamber.