CN201068959Y - Power shifting transmission-gear box - Google Patents
Power shifting transmission-gear box Download PDFInfo
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- CN201068959Y CN201068959Y CNU2007200236274U CN200720023627U CN201068959Y CN 201068959 Y CN201068959 Y CN 201068959Y CN U2007200236274 U CNU2007200236274 U CN U2007200236274U CN 200720023627 U CN200720023627 U CN 200720023627U CN 201068959 Y CN201068959 Y CN 201068959Y
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Abstract
The utility model discloses a power shift gearbox used for aZL10-20 shovel loader, and the shift gearbox comprises a power input shaft which is arranged in parallel, a two-stage speed reducing shaft, a transmission shaft, a power output shaft, speed change gears of all gear shifts, which are arranged on the shafts, four hydraulic clutches arranged on the four transmission shafts, a manually operated clutch driven through an engine driven belt, a hydraulic pump arranged on the gearbox, a lubricating pump and a maneuvering valve with a reducing valve. The gearbox can realize three forward gear shifts and one backward gear shift through the adjustment of a manoeuvering valve. The gear shift and transmission ratio of the utility model is designed rationally, high speed can be realized for a high gear shift and spare travel, and larger shoveling force during shoveling material can be realized at a low gear shift; the utility model can be started at low temperature and is provided with high working efficiency; the working efficiency can be enhanced by 30 percent, and the oil can be saved 25 percent; the braking efficiency is fine, and the transmission efficiency can be as high as over 92 percent; not only the installation and the operation of the gearbox are convenient, but also the cost of the installation and the maintenance is decreased greatly.
Description
One, technical field:
The utility model relates to the loader technical field, relates in particular to the dynamic power shift gear box of loader adapted.
Two, background technique:
At present, the gearbox of ZL10-20 loader adapted has the following disadvantages: (1) motor in winter is difficult to be started.Because hydraulic oil viscosity strengthens during low temperature, and oil hydraulic pump can't separate with motor when engine start, motor is difficult when causing low temperature starts.(2) oil hydraulic pump is connected with dynamo belt, because the space is less, belt is shorter, and oil hydraulic pump is installed inconvenient, and the number of times of taut band, tape swapping is more.(3) step on clutch shifting, inconvenient operation, because loader high frequency gearshift labor intensity is big, inefficiency.(4) clutch play that hydraulic coupling is transferred requires height.If clutch play is too small, separate unclear meeting and cause the gearshift difficulty, shift impact, random retaining occur and beat cogwheel phenomenon; If clutch play is excessive, the phenomenon that occurs skidding, burning wearing piece in the work.(5) clutch pedal, braking pedal, gas pedal, distributor operating handle, speed change master's pin and secondary pin etc. are arranged in operator cabin, the layout difficulty is big, and manipulation space is little, easily flicflac, bump hand.(6) gear is few, and velocity ratio is not too reasonable.
Many producers have proposed to adopt oil hydraulic motor to drive the method for gearbox at above-mentioned deficiency, and this has brought certain convenience to manipulation, and advancing, retreating, shift gears is to finish by control valve control motor; And high, low speed also will be finished by the gearbox handsetting gear.But also there are a lot of deficiencies in the oil hydraulic motor transmission: (1) efficient is lower than below 80%, loader oil consumption height.(2) having relatively high expectations to hydraulic oil.Require often to change hydraulic oil, improved cost virtually, will carry out essence filtration hydraulic oil, bigger in the pressure drop of the pressure oil at filter two ends, energy loss is arranged.(3) oil hydraulic motor is shorter working life.To quality preferably oil hydraulic motor dispatch from the factory and demarcate 1000 hours life-spans, the annual needs changed oil hydraulic motor, maintenance rate is higher.(4) complete machine hydraulic pressure pump delivery doubles abovely, and the hydraulic oil container capacity doubles, and hydraulic oil doubles, and the loss of energy is converted into heat in the work, the oily temperature rise of hydraulic oil, and oil hydraulic motor is very high to the requirement of oil temperature, be not higher than the 60-70 degree, must increase radiator.(5) whole system complex structure, the maintenance rate height, transmission efficiency is lower than 70%; Require the engine power of loader adapted must not be lower than 20kw, otherwise can't use.
Three, summary of the invention:
The purpose of this utility model is that a kind of dynamic power shift gear box that can overcome above-mentioned deficiency will be provided, gear of the present utility model and velocity ratio are reasonable in design, installation, handiness, cold-starting, the transmission efficiency height, good braking effect, system effectiveness are up to more than 92%, and the installation and maintenance cost reduces greatly.
In order to achieve the above object, technical solution of the present utility model is: dynamic power shift gear box comprises power input shaft I, the double reduction axle II, transmission shaft III, IV, V, VI and the pto VII that be arranged in parallel, be arranged on above-mentioned on each respectively keep off speed change gear Z1-Z15, four hydraulic couplinges, manual clutch, oil hydraulic pumps, have reduction valve control valve, be arranged on the oil pump on the transmission shaft III; The end of this power input shaft I is provided with manual clutch, and this manual clutch is connected with motor, and its other end is provided with oil hydraulic pump; These four hydraulic couplinges are located at respectively on transmission shaft IV, V, VI, the III; This control valve is connected with transmission shaft VI, III, IV, V, also is connected with oil hydraulic pump on the pto I by reduction valve; This I axle is a power input shaft, and the II axle is the double reduction axle, and III axle, IV axle, V axle and VI axle are transmission shaft, and the VII axle is a pto; III axle, IV axle, V axle and VI axle lay respectively on foursquare four summits; Neutral position directly over III axle and VI axle is provided with I axle, II axle, and the neutral position under IV axle and V axle is provided with the VII axle; Under the adjusting of control valve, be separately positioned on IV axle, V axle, VI axle and the III axle hydraulic coupling separately in conjunction with after, can correspondingly form and retreat retaining, the retaining that advances, advance two retainings and ahead three keep off, its speed ratio is respectively 9.42,23.34,7.59,3.21; After four hydraulic couplinges all separate, can form neutral.
Described control valve comprises selector valve and stop valve; This selector valve comprises valve body, spool, steel ball, spring and adjusting screw, on the outer peripheral surface in the middle of the spool, be provided with six annular grooves, four annular grooves in the middle of being positioned at communicate with four hydraulic couplinges respectively, are positioned at two annular grooves and the fuel tank normal open at two ends; On the interior sidewall surface of valve body, be provided with and the vertical through hole that communicates of its center hole, in this through hole, be provided with half of adjusting screw, spring and steel ball; Be provided with the spool that can axially move back and forth in the lower lumen of this valve body, from left to right be provided with five successively on the outer peripheral surface on this spool and be hemispheric annular groove; Under the effect of spring force, second half that is arranged on steel ball on the valve body interior sidewall surface can match with above-mentioned annular groove respectively.
Described stop valve comprises valve body, silk head, checking-valve body, piston, ends spool, spring, spacing apical axis and block; Be provided with by spool in the inner chamber of the top of valve body, should contact with the checking-valve body that screws in the valve body left end by the left end of spool, be provided with piston in this checking-valve body, this piston contacts with the silk head that screws in the checking-valve body left end; Should contact with the left end that is arranged in body cavity and is sleeved on the spring on the spacing apical axis by the right-hand member of spool, the right-hand member of this spacing apical axis and spring contacts with block in the screw-in body cavity; On spool, also be provided with axial central through hole and the vertical a plurality of radial direction through hole that communicate with axial central through hole; Can communicate with six annular grooves being provided with on the interior sidewall surface of valve body being provided with four annular grooves on the outer peripheral surface of spool.
Described motor can be 485,490,495,4100,4102 motors, adopts direct connection shaft drive, and the rated power of this motor is 45kw, and rated speed is 1800-2400rpm.
Described control valve is selected when advancing a retaining, hydraulic coupling combination on the V axle, motor and manual clutch are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z6 on the V axle, gear Z12 on the V axle and the engagement of the gear Z13 on the VI, gear Z14 on the VI axle and the engagement of the gear Z15 on the VII axle.
Described control valve is selected when advancing two retainings, hydraulic coupling combination on the VI axle, motor and manual clutch are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z6 on the V axle, gear Z6 on the V axle and the engagement of the gear Z7 on the VI axle, gear Z14 on the VI axle and the engagement of the gear Z15 on the VII axle.
When the selected ahead three of described control valve keeps off, hydraulic coupling combination on the III axle, motor and manual clutch are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z4 on the IV axle, gear Z4 on the IV axle and the engagement of the gear Z5 on the III axle, gear Z8 on the III axle and the engagement of the gear Z9 on the VII axle.
Described control valve is selected to be retreated when keeping off, hydraulic coupling combination on the IV axle, motor and manual clutch are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z4 on the IV axle, gear Z10 on the IV axle and the gear Z11 on V axle engagement, the gear Z12 on the V axle with the VI axle on gear Z13 engagement, gear Z13 on the VI axle and the gear Z15 on the VII axle mesh.
The oil pressure of described control valve is 1.2-1.5Mpa, and lubrication pressure is 0.15-0.25Mpa.
Described hydraulic coupling is a wet clutch, comprises driving wheel, rotating plate, driven plate, passive hub, piston, spring, axle, snap ring, supporting disk and platen; This rotating plate is four, and driven plate is five, and the external splines of this driving wheel is connected with the internal spline of rotating plate, and can axially move thereon, and the external splines of this driven plate is connected with the internal spline of passive hub, and can axially move thereon; One end of this spring props up the left side one side of piston, and its other end is supported on the axle by supporting disk and snap ring; This is provided with oil hydraulic pump control oil inlet A, the oil pump lubricant oil cooling-oil inlet B that communicates with piston cavity.
Compared with the prior art the utility model has following distinguishing feature and good effect: (1) has set up manual clutch, during ato unit, by clutch gearbox, oil hydraulic pump is separated with motor, is convenient to cold-starting.(2) gearbox is provided with pto, and oil hydraulic pump can be direct-connected with power, and is easy for installation, has reduced installation cost and maintenance.(3) do not need hydraulic coupling, do not need handsetting gear, the handiness noiseless does not have and impacts, all gear transmissions, and the transmission efficiency height, system effectiveness is more than 92%.(4) gear setting, velocity ratio are reasonable in design.Loader is in the requirement that is provided with of velocity ratio: top gear, idle stroke will have higher speed, and bottom gear will have bigger shovel power when the shovel material, and the utility model can satisfy above-mentioned requirements.Dynamic power shift gear box is provided with three forward gears, one or two retainings are the work retaining, two retainings arrive shovel material point fast with the speed of 8.24km/h, one retaining is feeded with the speed shovel of 2.68km/h and bigger shovel power is arranged, retreat retaining with the charging that falls back of the speed of 6.65km/h, high working efficiency can improve 30%, fuel-economizing 25%.(5) brake replaces clutch, and motor separates with gearbox in the time of brake, and engine load increases when having avoided brake, has improved braking effect.(6) have only braking pedal in the operator cabin, gas pedal, distributor operating handle and shift are arranged on below the steering wheel, indoor spaciousness, handiness.(7) whole speed variator system integrated degree height, easy for installation, maintenance rate is low.
Four, description of drawings:
Fig. 1 is the utility model transmission principle figure during adapted on loader
Fig. 2 is a fundamental diagram of the present utility model
Fig. 3 is input shaft, output shaft in the utility model and the layout chart of four transmission shafts in gearbox that four hydraulic couplinges are housed
Fig. 4 is the sectional structure schematic representation of a hydraulic coupling
Fig. 5 is the sectional structure schematic representation of control valve
Five, embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
As seen from Figure 1, Figure 2, the utility model comprises motor 3, is set in parallel in power input shaft I, double reduction axle II, transmission shaft III, IV, V, VI and pto VII in the gearbox 1, be installed in the hydraulic coupling 12,10,9,8 on transmission shaft III, IV, V, the VI respectively, be arranged on above-mentioned respectively keeping off speed change gear Z1-Z15, be arranged on manual clutch 2 and oil hydraulic pump 7 on the input shaft I, be arranged on oil pump 11 and manual brake device 15 on the transmission shaft III on each in addition, and control valve 13, reduction valve 14 etc.The two ends of this output shaft VII are connected by the input end of transmission shaft 4 with ransaxle 5 respectively, and this ransaxle is connected with wheel 6 again.
This motor 3 is 485,490,495,4100,4102 motors, adopts direct connection shaft drive, and its rated power is 45kw, and rated speed is 1800-2400rpm.
As shown in Figure 3, the I axle is a power input shaft, and the II axle is the double reduction axle, and III axle, IV axle, V axle and VI axle are transmission shaft, and the VII axle is a pto.III axle, IV axle, V axle and VI axle lay respectively on foursquare four angles; Neutral position directly over III axle and VI axle is provided with I axle, II axle, and the neutral position under IV axle and V axle is provided with the VII axle.
As shown in Figure 4, the structure of this hydraulic coupling 12,10,9,8 is identical with working principle, is wet clutch, and rotating plate 19 is seven, and driven plate 20 is eight, rotating plate with installed at interval by moving plate, its two ends, left and right sides are fixing by platen 18 and piston 22.The external splines of driving wheel 16 is connected with the internal spline of rotating plate 19, and can axially move thereon; The external splines of driven plate 20 is connected with the internal spline of passive hub 21, also can axially move thereon; One end of spring 24 props up the left side one side of piston 22, and the other end is supported on the axle 26 by supporting disk 28 and snap ring 17,27.On piston 22, be provided with the seal ring 23,25 of oil sealing effect.On axle 26, be provided with the oil hydraulic pump control oil inlet A, the oil pump lubricant oil cooling-oil inlet B that communicate with piston cavity.When pressure oil entered grease chamber, piston 22 right side through oil hydraulic pump control oil inlet A, piston just overcame spring force moving, and all rotating plates 19 and driven plate 20 are compressed, and hydraulic coupling is in conjunction with transferring power.
By Fig. 1, Fig. 5 as can be known, this control valve 13 is connected with transmission shaft III, IV, V, VI, also is connected with oil hydraulic pump 7 on the power input shaft I by reduction valve 14; This control valve 13 is made up of selector valve and stop valve, wherein:
This stop valve is valve body 37, silk 29, checking-valve body 31, piston 33, by spool 36, spring 38, spacing apical axis 39 with block a shot and 40 form.Be provided with by spool 36 in the inner chamber of the top of valve body 37, should contact with the checking-valve body 31 that screws in the valve body left end by the left end of spool, be provided with piston 33 in this checking-valve body, threads 29 of this piston and screw-in checking-valve body left end contacts; Should contact with the left end that is arranged in body cavity and is sleeved on the spring 38 on the spacing apical axis 39 by the right-hand member of spool, the right-hand member of this spacing apical axis 39 and spring 38 contacts with block in the screw-in body cavity.
On spool 36, also be provided with axial central through hole and the vertical a plurality of radial direction through hole that communicate with axial central through hole; Be provided with four annular grooves on the outer peripheral surface of spool, six annular grooves that can be provided with the interior sidewall surface of valve body 37 communicate.
This selector valve is five six logical steel ball location hand-operated direction valves, and this selector valve comprises valve body 37, spool 46, steel ball 42, spring 43 and adjusting screw 44; In the lower lumen of valve body 37, be provided with the spool 46 that can axially move back and forth, from left to right be provided with five successively on the outer peripheral surface of this spool right-hand member and be hemispheric annular groove; Also be provided with the vertical through hole that communicates of inner chamber with the spool place in valve body lower portion, in this through hole, be provided with half of adjusting screw 44, spring 43 and steel ball 42.Under the effect of spring force, second half that is arranged on steel ball on the valve body interior sidewall surface can match with above-mentioned annular groove respectively.Also be provided with six annular grooves on the outer peripheral surface in the middle of the spool 46, four annular grooves in the middle of being positioned at communicate with four hydraulic couplinges respectively, are positioned at two annular grooves and the fuel tank normal open at two ends.The low order end of this spool can connect operating handle, and its high order end is provided with the dust cap 47 that is fixed on the valve body 37.
This control valve 13 has the reduction valve 14 of controlling its oil pressure, and the oil pressure of this control valve 13 is 1.2-1.5Mpa, and lubrication pressure is 0.15-0.25Mpa.Also be provided with the O RunddichtringO 30,32,34,35,41,45,48 of oil sealing effect on this control valve.
Five annular groove correspondences that are located on the spool 46 five positions, position is a neutral in the middle of it, and when just steel ball mediated in the groove, the oil pocket of controlled four hydraulic couplinges led to oil sump tank, under the effect of hydraulic coupling medi-spring 24, four hydraulic couplinges all separate.Spool 46 is from left to right except that the neutral position, all the other four positions are controlled four clutches respectively, realize that four gears promptly retreat retaining, the retaining that advances, two retainings, ahead three retaining advance, just spool 46 is pressed onto the end, at this moment steel ball 42 is in the groove on the right side, and hydraulic coupling 10 oil pockets on the IV axle lead to pressure oil, other three clutches, 8,9,12 oil pockets lead to oil sump tank, have only hydraulic coupling 10 engagements on the IV axle, realize retreating retaining, speed ratio is 9.42; Steel ball 42 is in second groove in the right side, and hydraulic coupling 9 oil pockets on the V axle lead to pressure oil, and other three hydraulic couplinges, 10,8,12 oil pockets lead to oil sump tank, has only hydraulic coupling 9 engagements on the V axle, realizes advancing a retaining, and speed ratio is 23.34; And the like, steel ball has only hydraulic coupling 8 engagements on the VI axle in first groove of the left side, realize advancing two retainings, and speed ratio is 7.59; Steel ball when spool 46 is extracted entirely, has only hydraulic coupling 12 engagements on the III axle in second groove in the left side, realize the ahead three retaining, and speed ratio is 3.21.
When loader in travels down, when not stepping on brake petal, be in left side position, selector valve proper functioning by spool 36; When depressing braking pedal, the pressure oil that comes from brake pump enters promotion piston 33 in the hydraulic oil control room, and piston promotes to enter right position by spool 36, pressure spring 38.Be cut off by the pressure oil that spool 36 enters selector valve this moment, and the oil pocket of four hydraulic couplinges takes back fuel tank, no longer transferring power.So not only help the loader braking, also can whole power be used for the working position at loading mechanical shovel when filling with substance.
Working principle of the present utility model is: four hydraulic couplinges 8,9,10,12 are housed in gearbox, and each hydraulic coupling is in conjunction with forming a gear, and four hydraulic couplinges form four gears altogether, and the forming process of each gear is as follows:
The control valve 13 selected retainings that advance: hydraulic coupling 9 combinations on the V axle, motor 3 is by being arranged on the manual clutch 2 on the I axle, and transmission I axle rotates; Gear Z1 on the I axle and the engagement of the gear Z2 on the II axle drive the II axle and rotate; Gear Z3 on the II axle and the engagement of the gear Z6 on the V axle drive the V axle and rotate; Gear Z12 on the V axle and the engagement of the gear Z13 on the VI drive the VI axle and rotate; Gear Z14 on the VI axle and the engagement of the gear Z15 on the VII axle drive the VII axle and rotate; Power passes on ransaxle 6 and the wheel 6 by transmission shaft 4.
Control valve 13 selected two retainings that advance: hydraulic coupling 8 combinations on the VI axle, motor 3 is by being arranged on the manual clutch 2 on the I axle, and transmission I axle rotates; Gear Z1 on the I axle and the engagement of the gear Z2 on the II axle drive the II axle and rotate; Gear Z3 on the II axle and the engagement of the gear Z6 on the V axle drive the V axle and rotate; Gear Z6 on the V axle and the engagement of the gear Z7 on the VI axle drive the VI axle and rotate; Gear Z14 on the VI axle and the engagement of the gear Z15 on the VII axle drive the VII axle and rotate; Power passes on ransaxle 6 and the wheel 6 by transmission shaft 4.
Control valve 13 selected ahead three retainings: hydraulic coupling 12 combinations on the III axle, motor 3 is by being arranged on the manual clutch 2 on the I axle, and transmission I axle rotates; Gear Z1 on the I axle and the engagement of the gear Z2 on the II axle drive the II axle and rotate; Gear Z3 on the II axle and the engagement of the gear Z4 on the IV axle drive the IV axle and rotate; Gear Z4 on the IV axle and the engagement of the gear Z5 on the III axle drive the III axle and rotate; Gear Z8 on the III axle and the engagement of the gear Z9 on the VII axle drive the VII axle and rotate; Power passes on ransaxle 6 and the wheel 6 by transmission shaft 4.
The control valve 13 selected retainings that retreat: hydraulic coupling 10 combinations on the IV axle, motor 3 is by being arranged on the manual clutch 2 on the I axle, and transmission I axle rotates; Gear Z1 on the I axle and the engagement of the gear Z2 on the II axle drive the II axle and rotate; Gear Z3 on the II axle and the engagement of the gear Z4 on the IV axle drive the IV axle and rotate; Gear Z10 on the IV axle and the engagement of the gear Z11 on the V axle drive the V axle and rotate; Gear Z12 on the V axle with the VI axle on gear Z13 engagement, drive the VI axle and rotate; Gear Z13 on the VI axle and the engagement of the gear Z15 on the VII axle drive the VII axle and rotate; Power passes on ransaxle 6 and the wheel 6 by transmission shaft 4.
The utility model can adapted ZL10-20 loader.Can select different gears by control valve 13 during use, final output shaft VII passes to transmission shaft 4, ransaxle 5 and wheel 6 to power, thereby makes loader realize the not existing speed of a motor vehicle.
Claims (10)
1. dynamic power shift gear box is characterized in that:
A, comprise power input shaft I, the double reduction axle II, transmission shaft III, IV, V, VI and the pto VII that be arranged in parallel, be arranged on above-mentioned on each respectively keep off speed change gear Z1-Z15, four hydraulic couplinges (8) (9) (10) (12), manual clutch (2), oil hydraulic pump (7), have reduction valve control valve (13), be arranged on the oil pump (11) on the transmission shaft III;
The end of b, this power input shaft I is provided with manual clutch (2), and this manual clutch is connected with motor (3), and its other end is provided with oil hydraulic pump (7);
C, this hydraulic coupling (12) (10) (9) (8) are separately positioned on transmission shaft III, IV, V, the VI;
D, this control valve (13) are connected with transmission shaft III, IV, V, VI, also are connected with oil hydraulic pump (7) on the pto I by reduction valve (14);
E, this I axle are power input shaft, and the II axle is the double reduction axle, and III axle, IV axle, V axle and VI axle are transmission shaft, and the VII axle is a pto; III axle, IV axle, V axle and VI axle lay respectively on foursquare four summits; Neutral position directly over III axle and VI axle is provided with I axle, II axle, and the neutral position under IV axle and V axle is provided with the VII axle;
F, under the adjusting of control valve, be separately positioned on IV axle, V axle, VI axle and the III axle hydraulic coupling (10) (9) (8) (12) separately in conjunction with after, can corresponding form and retreat retaining, the retaining that advances, advance two retainings and ahead three keep off, its speed ratio is respectively 9.42,23.34,7.59,3.21; After four hydraulic couplinges all separate, can form neutral.
2. dynamic power shift gear box according to claim 1 is characterized in that described control valve (13) comprises selector valve and stop valve; This selector valve comprises valve body (37), spool (46), steel ball (42), spring (43) and adjusting screw (44), on the outer peripheral surface in the middle of the spool (46), be provided with six annular grooves, four annular grooves in the middle of being positioned at communicate with four hydraulic couplinges respectively, are positioned at two annular grooves and the fuel tank normal open at two ends; On the interior sidewall surface of valve body (37), be provided with and the vertical through hole that communicates of its center hole, in this through hole, be provided with half of adjusting screw (44), spring (43) and steel ball (42); Be provided with the spool (46) that can axially move back and forth in the lower lumen of this valve body, from left to right be provided with five successively on the outer peripheral surface on this spool and be hemispheric annular groove; Under the effect of spring force, second half that is arranged on steel ball on the valve body interior sidewall surface can match with above-mentioned annular groove respectively.
3. dynamic power shift gear box according to claim 2 is characterized in that described stop valve comprises valve body (37), silk head (29), checking-valve body (31), piston (33), ends spool (36), spring (38), spacing apical axis (39) and block (40); In the top inner chamber of valve body (37), be provided with by spool (36), should contact with the checking-valve body (31) that screws in the valve body left end by the left end of spool, be provided with piston (33) in this checking-valve body, this piston contacts with the silk head (29) that screws in the checking-valve body left end; Should contact with the left end that is arranged in body cavity and is sleeved on the spring (38) on the spacing apical axis (39) by the right-hand member of spool, the right-hand member of this spacing apical axis (39) and spring (38) contacts with block (40) in the screw-in body cavity; On spool (36), also be provided with axial central through hole and the vertical a plurality of radial direction through hole that communicate with axial central through hole; Can communicate with six annular grooves being provided with on the interior sidewall surface of valve body (37) being provided with four annular grooves on the outer peripheral surface of spool (36).
4. dynamic power shift gear box according to claim 3, it is characterized in that described motor (3) can be 485,490,495,4100,4102 motors, adopt direct connection shaft drive, the rated power of this motor (3) is 45kw, and rated speed is 1800-2400rpm.
5. according to claim 1 or 4 described dynamic power shift gear boxes, it is characterized in that described control valve (13) is selected advances during a retaining, hydraulic coupling on the V axle (9) combination, motor (3) and manual clutch (2) are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z6 on the V axle, gear Z12 on the V axle and the engagement of the gear Z13 on the VI, gear Z14 on the VI and the engagement of the gear Z15 on the VII axle.
6. according to claim 1 or 4 described dynamic power shift gear boxes, it is characterized in that described control valve (13) is selected advances during two retainings, hydraulic coupling on the VI axle (8) combination, motor (3) and manual clutch (2) are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z6 on the V axle, gear Z6 on the V axle and the engagement of the gear Z7 on the VI axle, gear Z14 on the VI axle and the engagement of the gear Z15 on the VII axle.
7. according to claim 1 or 4 described dynamic power shift gear boxes, when it is characterized in that the selected ahead three of described control valve (13) keeps off, hydraulic coupling on the III axle (12) combination, motor (3) and manual clutch (2) are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z4 on the IV axle, gear Z4 on the IV axle and the engagement of the gear Z5 on the III axle, gear Z8 on the III axle and the engagement of the gear Z9 on the VII axle.
8. according to claim 1 or 4 described dynamic power shift gear boxes, when it is characterized in that described control valve (13) is selected and retreating retaining, hydraulic coupling on the IV axle (10) combination, motor (3) and manual clutch (2) are arranged on the I axle, gear Z1 on the I axle and the engagement of the gear Z2 on the II axle, gear Z3 on the II axle and the engagement of the gear Z4 on the IV axle, gear Z10 on the IV axle and the engagement of the gear Z11 on the V axle, gear Z12 on the V axle and the engagement of the gear Z13 on the VI axle, gear Z13 on the VI axle and the engagement of the gear Z15 on the VII axle.
9. dynamic power shift gear box according to claim 3, the oil pressure that it is characterized in that described control valve (13) is 1.2-1.5Mpa, lubrication pressure is 0.15-0.25Mpa.
10. according to claim 1 or 4 described dynamic power shift gear boxes, it is characterized in that described hydraulic coupling (8) (9) (10) (12) is a wet clutch, comprise driving wheel (16), rotating plate (19), driven plate (20), passive hub (21), piston (22), spring (24), axle (26), snap ring (17) (27), supporting disk (28) and platen (18); This rotating plate (19) is four, driven plate (20) is five, and the external splines of this driving wheel (16) is connected with the internal spline of rotating plate, and can axially move thereon, the external splines of this driven plate (20) is connected with the internal spline of passive hub (21), and can axially move thereon; One end of this spring (24) props up the left side one side of piston (22), and its other end is supported on the axle (26) by supporting disk (28) and snap ring; This axle (26) is provided with oil hydraulic pump control oil inlet A, the oil pump lubricant oil cooling-oil inlet B that communicates with piston cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200236274U CN201068959Y (en) | 2007-06-13 | 2007-06-13 | Power shifting transmission-gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200236274U CN201068959Y (en) | 2007-06-13 | 2007-06-13 | Power shifting transmission-gear box |
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| Publication Number | Publication Date |
|---|---|
| CN201068959Y true CN201068959Y (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200236274U Expired - Fee Related CN201068959Y (en) | 2007-06-13 | 2007-06-13 | Power shifting transmission-gear box |
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| CN (1) | CN201068959Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619582B (en) * | 2009-07-22 | 2011-01-19 | 荆建新 | Small-size four-wheel drive stepless speed change loader |
| CN102146987A (en) * | 2011-01-18 | 2011-08-10 | 王云高 | Power shift speed changing box for matching engineering machine |
| CN102406994A (en) * | 2011-11-07 | 2012-04-11 | 河南海力特机电制造有限公司 | Power-taking transfer device for high-pressure water mist fire engine |
| CN107218373A (en) * | 2017-07-27 | 2017-09-29 | 天津工程机械研究院有限公司 | A kind of all-hydraulic transmission speed changer |
| CN113464612A (en) * | 2021-07-23 | 2021-10-01 | 伯大营 | Multi-gear adjustable gearbox |
-
2007
- 2007-06-13 CN CNU2007200236274U patent/CN201068959Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619582B (en) * | 2009-07-22 | 2011-01-19 | 荆建新 | Small-size four-wheel drive stepless speed change loader |
| CN102146987A (en) * | 2011-01-18 | 2011-08-10 | 王云高 | Power shift speed changing box for matching engineering machine |
| CN102406994A (en) * | 2011-11-07 | 2012-04-11 | 河南海力特机电制造有限公司 | Power-taking transfer device for high-pressure water mist fire engine |
| CN107218373A (en) * | 2017-07-27 | 2017-09-29 | 天津工程机械研究院有限公司 | A kind of all-hydraulic transmission speed changer |
| CN107218373B (en) * | 2017-07-27 | 2023-04-07 | 天津工程机械研究院有限公司 | Full hydraulic transmission speed changer |
| CN113464612A (en) * | 2021-07-23 | 2021-10-01 | 伯大营 | Multi-gear adjustable gearbox |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20110613 |