CN103511582B - A kind of hydrodynamic drive speed changer with hydraulic control system - Google Patents
A kind of hydrodynamic drive speed changer with hydraulic control system Download PDFInfo
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- CN103511582B CN103511582B CN201310479128.6A CN201310479128A CN103511582B CN 103511582 B CN103511582 B CN 103511582B CN 201310479128 A CN201310479128 A CN 201310479128A CN 103511582 B CN103511582 B CN 103511582B
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
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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
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
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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
- F16H2057/02013—Extension units for gearboxes, e.g. additional units attached to a main gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
A kind of hydrodynamic drive speed changer with hydraulic control system, comprise gearbox, torque-converters assembly and hydraulic control system assembly, described gearbox comprises casing and input shaft, described housing is fixed on casing, forms cavity between housing and casing, is provided with fluid in cavity, described fluid torque converter is located in housing, be provided with input shaft, idler shaft and output shaft in described casing, the tail end of output shaft stretches out casing, it forms screw, and the second shaft coupling portion of flexible coupling is screwed onto in screw; Described hydraulic control system assembly comprises strainer, oil pump, secondary filter, bypass valve, throttle valve, inching valve, trimmer valve, shift valve, reduction valve, relief valve, torque-converters, cooler, lubrication pressure interface and variable throttle valve.It connects ransaxle by flexible coupling, and reduce the impact of vibration on speed changer, improve the comfort level of driving, meanwhile, it can improve cooling effect, reduces gearbox thermal equilibrium temperature.
Description
Technical field:
The present invention relates to gearbox equipment technical field, relate to a kind of hydrodynamic drive speed changer with hydraulic control system in particular.
Background technique:
At present, fork truck manufactures the hydrodynamic drive speed changer in field, see shown in Fig. 1 and 2, its casing 23a and ransaxle 4a is rigidly connected, it is directly meshed with the drive bevel gear 5a of ransaxle 4a by the master bevel gear 3a on the output shaft 2a of casing 23a, thus drive ransaxle 4a to run, it is for being rigidly connected, the vibration of such motor makes the transmission part in casing 23a produce vibration and the direct drive bevel gear 5a by the master bevel gear 3a on output shaft 2a and ransaxle 4a passes to ransaxle 4a, make road-ability bad like this, and easily make power main transferring elements master bevel gear 3a and dynamic bevel gear 5a damage, speed changer cannot be worked.
Meanwhile, the inching valve 6a in the hydraulic control system control of existing speed changer is separated with valve body assembly 7a, and inching valve 6a is fixed on the sidewall of casing 23a, and the spatial volume of the side of such speed changer increases, and impact is installed.
And as shown in Figure 3, after its secondary filter 9a is located at reduction valve 12a, the fluid cavity that flow-off and casing and the housing of relief valve 13a form directly is communicated with, major defect is: 1, cooling effect is bad, cool without cooler 15a due to the fluid that flows out from flow-off through relief valve 13a, but be directly back in fluid cavity, make the oil liquid temperature entering fluid cavity very high, thus make gearbox thermal equilibrium temperature higher.2, because fluid is just by directly entering in reduction valve 12a and shift valve 11a after the coarse filtration of strainer 10a, its lubrication oil filtration effect is bad, make the spool rate of fault of the various valves in hydraulic control system high, make hydraulic control system easily produce fault, reduce working life.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, a kind of novel hydrodynamic drive speed changer is provided, it connects ransaxle by flexible coupling, make to have started the vibration produced to be absorbed by flexible coupling, reduce the impact of vibration on speed changer, improve the comfort level of driving, improve the working life of speed changer.Meanwhile, the control valve assembly that it adopts inching valve to combine, control valve assembly is all fixed on casing top, reduces taking of the side space of speed changer, to reduce taking of side space, thus improves space availability ratio.It can improve the filtering effect of fluid, and reduce the rate of fault of hydraulic control system, meanwhile, it can improve cooling effect, reduce gearbox thermal equilibrium temperature, and structure is simple.
The scheme that the present invention solve the technical problem is:
A kind of hydrodynamic drive speed changer with hydraulic control system, comprise gearbox, torque-converters assembly and hydraulic control system assembly, described gearbox comprises casing and input shaft, described torque-converters assembly comprises housing and fluid torque converter, described housing is fixed on casing, cavity is formed between housing and casing, fluid is provided with in cavity, described fluid torque converter is located in housing, in the connecting through hole that the turbine shaft sleeve of described fluid torque converter forms on the rear sidewall of housing, input shaft is provided with in described casing, idler shaft and output shaft, input shaft, the afterbody of idler shaft and output shaft is all hinged on the rear sidewall of casing, the other end is all hinged on housing, the other end of input shaft is hinged in the madial wall of the connecting through hole of housing by input shaft bearing, and be connected with turbine shaft, the close afterbody of input shaft outer wall and top place are respectively arranged with the first gear and the second gear, the outer side wall of idler shaft is provided with the 3rd gear and the 4th gear, the outer side wall of output shaft is provided with driving gear, first gear is meshed with the 3rd gear, 4th gear is meshed with driving gear, the tail end of output shaft stretches out casing, it forms screw, second shaft coupling portion of flexible coupling is screwed onto in screw,
Described hydraulic control system assembly comprises strainer, oil pump, secondary filter, bypass valve, throttle valve, inching valve, trimmer valve, shift valve, reduction valve, relief valve, torque-converters, cooler, lubrication pressure interface and variable throttle valve, strainer is fixed on the sidewall of housing, the oil outlet of housing is connected with the filler opening of strainer, oil pump is arranged in the housing, turbine shaft sleeve is in the central through bore of oil pump, the fluid entry end of oil pump is connected with the oil outlet of strainer, fuel pump outlet end is connected with the entrance point of secondary filter, secondary filter is fixed on the rear sidewall outer wall of casing, the entrance point of bypass valve is connected with entrance point with the outlet end of secondary filter respectively with outlet end, the outlet end of secondary filter is also connected with the entry end of reduction valve with the entrance point of throttle valve respectively, the outlet end of throttle valve is connected with the entry end of inching valve, the outlet end of inching valve is connected with the entry end of shift valve with trimmer valve respectively, the outlet end of reduction valve is connected with the entry end of fluid torque converter, relief valve is provided with between reduction valve and torque-converters, the entry end of relief valve is connected with the outlet end of reduction valve, the flow-off of relief valve is connected with the entry end of cooler, the entry end of cooler is also connected with the outlet end of fluid torque converter, the outlet end of cooler is connected with the lubrication pressure interface on the rear sidewall being fixed on casing, lubrication pressure interface communicates with the filler opening of input shaft, described bypass valve, throttle valve, inching valve, trimmer valve, shift valve, reduction valve and relief valve composition valve body assembly, valve body assembly is fixed on the top of casing.
Described flexible coupling structure is, the inner side surface in the first shaft coupling portion is fixed with left connecting body, the inner side surface in the second shaft coupling portion is fixed with right connecting body, intermediate buffering block one end is hinged on left connecting body by hinging shaft, the other end is hinged on right connecting body by hinging shaft, the outboard end in the first shaft coupling portion forms the first connecting stud, the outboard end in the second shaft coupling portion forms the second connecting stud, and the second connecting stud is screwed onto in the screw of the tail end of output shaft.
The rear sidewall of the bottom of described casing forms through hole, the afterbody of output shaft by bearing hinge connection on the sidewall of through hole, its tail end stretches out through hole and in the end cap of sleeve on the outer wall of bottom being fixed on casing, the madial wall elasticity of the seal ring be provided with in end cap is pressed against on the outer wall of the tail end of output shaft.
The top of described housing forms connecting through hole, connecting through hole is made up of the first shoulder hole and the second shoulder hole, first shoulder hole is on the outer inner side surface of the rear sidewall of housing, second shoulder hole is on the inner inner side surface of the rear sidewall of housing, the diameter of the first shoulder hole is greater than the second shoulder hole, first shoulder hole is connected with the second shoulder hole, the madial wall of the first shoulder hole is fixed with input shaft bearing, the top of input shaft is fixed on the madial wall of the inner ring of input shaft bearing, the top sleeve of input shaft is in the second shoulder hole, in the circular groove that the outer wall that elastic seal ring is embedded in the top of input shaft forms, also elasticity is pressed against on the sidewall of the second shoulder hole.
Described secondary filter is located between the outlet end of oil pump and reduction valve entry end.
The P2 mouth of described shift valve is connected with the filler opening of clutch F, the P1 mouth of shift valve is connected with the filler opening of clutch R.
Outstanding effect of the present invention is:
Compared with prior art, it connects ransaxle by flexible coupling, makes to have started the vibration produced to be absorbed by flexible coupling, reduces the impact of vibration on speed changer, improves the comfort level of driving, improve the working life of speed changer.Meanwhile, the control valve assembly that it adopts inching valve to combine, control valve assembly is fixed on casing top, reduces taking of the side space of speed changer, to reduce taking of side space, thus improves space availability ratio.
Secondary filter is located between the outlet end of oil pump and reduction valve entry end by it, thus to fluid through secondary filter, reduce the impurity in fluid, thus the fluid making to enter reduction valve and shift valve is cleaner, reduce the rate of fault in hydraulic control system, improve the working life of equipment; Simultaneously, its fluid flowed out by flow-off of relief valve carries out cooler cooling, and again passes in lubrication system by cooled fluid, which decreases the temperature of its fluid, fluid after cooling can run in lubrication system, and gearbox thermal equilibrium temperature is reduced.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of existing torque converter;
Fig. 2 be Fig. 1 change angled arrangement schematic diagram;
Fig. 3 is the structural representation of existing hydraulic control system;
Fig. 4 is structural representation of the present invention;
Fig. 5 is the structural representation of the A-A of Fig. 4;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Fig. 7 is the structural representation of the A1-A1 of Fig. 4;
Fig. 8 be Fig. 4 K2 to structural representation;
Fig. 9 is the structural representation of the C-C of Fig. 8;
Figure 10 is the structural representation of the B-B of Fig. 4;
Figure 11 is the oil circuit schematic diagram of hydraulic control system of the present invention;
Figure 12 is the schematic diagram of hydraulic control system of the present invention.
Embodiment:
Embodiment, see shown in Fig. 4 to Figure 12, a kind of hydrodynamic drive speed changer with hydraulic control system, comprise gearbox 100, torque-converters assembly 200 and hydraulic control system assembly 300, described gearbox 100 comprises casing 23 and input shaft 27, described torque-converters assembly 200 comprises housing 24 and fluid torque converter 25, described housing 24 is fixed on casing 23, cavity is formed between housing 24 and casing 23, fluid is provided with in cavity, described fluid torque converter 25 is located in housing 24, in the connecting through hole 241 that turbine shaft 251 sleeve of described fluid torque converter 25 forms on the rear sidewall of housing 24, input shaft 27 is provided with in described casing 23, idler shaft 20 and output shaft 37, input shaft 27, the afterbody of idler shaft 20 and output shaft 37 is all hinged on the rear sidewall of casing 23, the other end is all hinged on housing 24, the other end of input shaft 27 is hinged in the madial wall of connecting through hole 241 of housing 24 by input shaft bearing 271, and be connected with turbine shaft 251, the close afterbody of input shaft 27 outer wall and top place are respectively arranged with the first gear 19 and the second gear 273, the middle part of input shaft 27 is provided with friction plate 34, partition 33, clutch plunger 30 and Returnning spring 32, the outer side wall of idler shaft 20 is provided with the 3rd gear 201 and the 4th gear 202, the outer side wall of output shaft 37 is provided with driving gear 22, first gear 19 is meshed with the 3rd gear 201, 4th gear 202 is meshed with driving gear 22, the tail end of output shaft 37 stretches out casing 23, it forms screw 371, second shaft coupling portion 361 of flexible coupling 36 is screwed onto in screw 371,
Described hydraulic control system assembly 300 comprises strainer 2, oil pump 3, secondary filter 4, bypass valve 5, throttle valve 6, inching valve 7, trimmer valve 8, shift valve 9, reduction valve 12, relief valve 13, torque-converters 14, cooler 15, lubrication pressure interface 16 and variable throttle valve 17, strainer 2 is fixed on the sidewall of housing 24, the oil outlet of housing 24 is connected with the filler opening of strainer 2, oil pump 3 is arranged in housing 24, turbine shaft 251 sleeve is in the central through bore of oil pump 3, the fluid entry end of oil pump 3 is connected with the oil outlet of strainer 2, oil pump 3 outlet end is connected with the entrance point of secondary filter 4, secondary filter 4 is fixed on the rear sidewall outer wall of casing 23, the entrance point of bypass valve 5 is connected with entrance point with the outlet end of secondary filter 4 respectively with outlet end, the outlet end of secondary filter 4 is also connected with the entry end of reduction valve 12 with the entrance point of throttle valve 6 respectively, the outlet end of throttle valve 6 is connected with the entry end of inching valve 7, the outlet end of inching valve 7 is connected with the entry end of trimmer valve 8 with shift valve 9 respectively, the outlet end of reduction valve 12 is connected with the entry end of fluid torque converter 25, relief valve 13 is provided with between reduction valve 12 and torque-converters, the entry end of relief valve 13 is connected with the outlet end of reduction valve 12, the flow-off of relief valve 13 is connected with the entry end of cooler 15, the entry end of cooler 15 is also connected with the outlet end of fluid torque converter 25, the outlet end of cooler 15 is connected with the lubrication pressure interface 16 on the rear sidewall being fixed on casing 23, lubrication pressure interface 16 communicates with the filler opening of input shaft 27, thus lubricate for the parts in casing 23, described bypass valve 5, throttle valve 6, inching valve 7, trimmer valve 8, shift valve 9, reduction valve 12 and relief valve 13 form valve body assembly 400, valve body assembly 400 is fixed on the top of casing 23, it can be that each valve body is interconnected to form valve body assembly 400, forms valve body assembly 400 in the housing that some multiple valve bodies on the market also can be adopted to integrate.Inching valve 7 is in variable throttle valve 17.
Described flexible coupling 36 structure is, the inner side surface in the first shaft coupling portion 362 is fixed with left connecting body 363, the inner side surface in the second shaft coupling portion 361 is fixed with right connecting body 364, intermediate buffering block 365 one end is hinged on left connecting body 363 by hinging shaft, the other end is hinged on right connecting body 364 by hinging shaft, the outboard end in the first shaft coupling portion 362 forms the first connecting stud 3621, the outboard end in the second shaft coupling portion 361 forms the second connecting stud 3611, second connecting stud 3611 and is screwed onto in the screw 371 of the tail end of output shaft 37.Adopt this coupling, can reduce by intermediate buffering block 365 motor to be delivered to ransaxle vibration by speed changer, improve the working life of road-ability and speed changer.
The rear sidewall of the bottom of described casing 23 forms through hole 231, the afterbody of output shaft 37 by bearing hinge connection on the sidewall of through hole 231, its tail end stretches out through hole 231 and in the end cap 38 of sleeve on the outer wall of bottom being fixed on casing 23, the madial wall elasticity of the seal ring 381 be provided with in end cap 38 is pressed against on the outer wall of the tail end of output shaft 37.
The top of described housing 24 forms connecting through hole 241, connecting through hole 241 is made up of the first shoulder hole 2411 and the second shoulder hole 2412, first shoulder hole 2411 is on the outer inner side surface of the rear sidewall of housing 24, second shoulder hole 2412 is on the inner inner side surface of the rear sidewall of housing 24, the diameter of the first shoulder hole 2411 is greater than the second shoulder hole 2412, first shoulder hole 2411 is connected with the second shoulder hole 2412, the madial wall of the first shoulder hole 2411 is fixed with input shaft bearing 271, the top of input shaft 27 is fixed on the madial wall of the inner ring of input shaft bearing 271, the top sleeve of input shaft 27 is in the second shoulder hole 2412, in the circular groove 279 that the outer wall that elastic seal ring 272 is embedded in the top of input shaft 27 forms, also elasticity is pressed against on the sidewall of the second shoulder hole 2412.
Adopt elastic seal ring 272 and seal ring 381 can prevent fluid in casing 23 out, improve sealing.
Described secondary filter 4 is located between the outlet end of oil pump 3 and reduction valve 12 entry end.
The P2 mouth of described shift valve 9 is connected with the filler opening of clutch F10, the P1 mouth of shift valve 9 is connected with the filler opening of clutch R11.Clutch F10 and clutch R11 refers to forward gear clutch and and retreats shelves clutch.
The working principle of hydraulic control system assembly 300 is, cavity is formed between housing 24 and casing 23, fluid is provided with in cavity, fluid enters strainer 2 and carries out first time filtration, then entered by oil pump 3 and then again filter through secondary filter 4, improve the degree of purity of fluid, reduce the impurity be mixed with in it, then fluid is through throttle valve 6, shift valve 9 is entered after inching valve 7, eventually pass shift valve 9 to enter in clutch F10 or clutch R11 and control, and enter in reduction valve 12 through another road of secondary filter 4, by entering in torque-converters 14 and relief valve 13 after reduction valve 12, fluid after torque-converters 14 enters cooler 15 and cools, and also enter cooler 15 from relief valve 13 flow-off fluid out and cool, the fluid finally cooled all enters to enter in lubrication pressure interface 16 and from the filler opening of input shaft 27 and carries out lubricating the parts in casing 23 and lowering the temperature, oil liquid temperature is now low, reduce gearbox thermal equilibrium temperature.And fluid is through the secondary filter of strainer 2 and secondary filter 4, improve its filtering effect, make the spool of the valve of hydraulic control system be not easy to damage, improve the working life of hydraulic control system.
Also be provided with bypass valve 5 in this hydraulic control system, the impurity in secondary filter 4 can be discharged by it, prevent secondary filter 4 from blocking.
Cooler 15 in Fig. 4 to 8 does not show.
Claims (5)
1. one kind has the hydrodynamic drive speed changer of hydraulic control system, comprise gearbox (100), torque-converters assembly (200) and hydraulic control system assembly (300), described gearbox (100) comprises casing (23) and input shaft (27), described torque-converters assembly (200) comprises housing (24) and fluid torque converter (25), described housing (24) is fixed on casing (23), cavity is formed between housing (24) and casing (23), fluid is provided with in cavity, described fluid torque converter (25) is located in housing (24), , in the connecting through hole (241) that turbine shaft (251) sleeve of described fluid torque converter (25) forms on the rear sidewall of housing (24), it is characterized in that: in described casing (23), be provided with input shaft (27), idler shaft (20) and output shaft (37), input shaft (27), the afterbody of idler shaft (20) and output shaft (37) is all hinged on the rear sidewall of casing (23), the other end is all hinged on housing (24), the other end of input shaft (27) is hinged in the madial wall of connecting through hole (241) of housing (24) by input shaft bearing (271), and be connected with turbine shaft (251), the close afterbody of input shaft (27) outer wall and top place are respectively arranged with the first gear (19) and the second gear (273), the outer side wall of idler shaft (20) is provided with the 3rd gear (201) and the 4th gear (202), the outer side wall of output shaft (37) is provided with driving gear (22), first gear (19) is meshed with the 3rd gear (201), 4th gear (202) is meshed with driving gear (22), the tail end of output shaft (37) stretches out casing (23), it forms screw (371), second shaft coupling portion (361) of flexible coupling (36) is screwed onto in screw (371),
Described hydraulic control system assembly (300) comprises strainer (2), oil pump (3), secondary filter (4), bypass valve (5), throttle valve (6), inching valve (7), trimmer valve (8), shift valve (9), reduction valve (12), relief valve (13), torque-converters (14), cooler (15), lubrication pressure interface (16) and variable throttle valve (17), strainer (2) is fixed on the sidewall of housing (24), the oil outlet of housing (24) is connected with the filler opening of strainer (2), oil pump (3) is arranged in housing (24), turbine shaft (251) sleeve is in the central through bore of oil pump (3), the fluid entry end of oil pump (3) is connected with the oil outlet of strainer (2), oil pump (3) outlet end is connected with the entrance point of secondary filter (4), secondary filter (4) is fixed on the rear sidewall outer wall of casing (23), the entrance point of bypass valve (5) is connected with entrance point with the outlet end of secondary filter (4) respectively with outlet end, the outlet end of secondary filter (4) is also connected with the entry end of reduction valve (12) with the entrance point of throttle valve (6) respectively, the outlet end of throttle valve (6) is connected with the entry end of inching valve (7), the outlet end of inching valve (7) is connected with the entry end of trimmer valve (8) with shift valve (9) respectively, the outlet end of reduction valve (12) is connected with the entry end of fluid torque converter (25), relief valve (13) is provided with between reduction valve (12) and torque-converters, the entry end of relief valve (13) is connected with the outlet end of reduction valve (12), the flow-off of relief valve (13) is connected with the entry end of cooler (15), the entry end of cooler (15) is also connected with the outlet end of fluid torque converter (25), the outlet end of cooler (15) is connected with the lubrication pressure interface (16) on the rear sidewall being fixed on casing (23), lubrication pressure interface (16) communicates with the filler opening of input shaft (27), described bypass valve (5), throttle valve (6), inching valve (7), trimmer valve (8), shift valve (9), reduction valve (12) and relief valve (13) composition valve body assembly (400), valve body assembly (400) is fixed on the top of casing (23),
Described flexible coupling (36) structure is, the inner side surface in the first shaft coupling portion (362) is fixed with left connecting body (363), the inner side surface in the second shaft coupling portion (361) is fixed with right connecting body (364), intermediate buffering block (365) one end is hinged on left connecting body (363) by hinging shaft, the other end is hinged on right connecting body (364) by hinging shaft, the outboard end in the first shaft coupling portion (362) forms the first connecting stud (3621), the outboard end in the second shaft coupling portion (361) forms the second connecting stud (3611), first connecting stud (3621) is screwed onto in the screw (371) of the tail end of output shaft (37).
2. a kind of hydrodynamic drive speed changer with hydraulic control system according to claim 1, it is characterized in that: the rear sidewall of the bottom of described casing (23) forms through hole (231), the afterbody of output shaft (37) by bearing hinge connection on the sidewall of through hole (231), its tail end stretches out through hole (231) and in the end cap (38) of sleeve on the outer wall of bottom being fixed on casing (23), the madial wall elasticity of the seal ring (381) be provided with in end cap (38) is pressed against on the outer wall of the tail end of output shaft (37).
3. a kind of hydrodynamic drive speed changer with hydraulic control system according to claim 1, it is characterized in that: the top of described housing (24) forms connecting through hole (241), connecting through hole (241) is made up of the first shoulder hole (2411) and the second shoulder hole (2412), first shoulder hole (2411) is on the outer side surface of the rear sidewall of housing (24), second shoulder hole (2412) is on the inner side surface of the rear sidewall of housing (24), the diameter of the first shoulder hole (2411) is greater than the second shoulder hole (2412), first shoulder hole (2411) is connected with the second shoulder hole (2412), the madial wall of the first shoulder hole (2411) is fixed with input shaft bearing (271), the top of input shaft (27) is fixed on the madial wall of the inner ring of input shaft bearing (271), the top sleeve of input shaft (27) is in the second shoulder hole (2412), in the circular groove (279) that the outer wall that elastic seal ring (272) is embedded in the top of input shaft (27) forms, also elasticity is pressed against on the sidewall of the first shoulder hole (2411).
4. a kind of hydrodynamic drive speed changer with hydraulic control system according to claim 1, is characterized in that: described secondary filter (4) is located between the outlet end of oil pump (3) and reduction valve (12) entry end.
5. a kind of hydrodynamic drive speed changer with hydraulic control system according to claim 1, is characterized in that: the P2 mouth of described shift valve (9) is connected with the filler opening of clutch F (10), the P1 mouth of shift valve (9) is connected with the filler opening of clutch R (11).
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| CN201310479128.6A CN103511582B (en) | 2013-10-14 | 2013-10-14 | A kind of hydrodynamic drive speed changer with hydraulic control system |
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| CN201310479128.6A CN103511582B (en) | 2013-10-14 | 2013-10-14 | A kind of hydrodynamic drive speed changer with hydraulic control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104074968B (en) * | 2014-07-01 | 2016-08-24 | 安徽合力股份有限公司 | Examination gearbox is accompanied in transmission test self shifter |
| CN104315107A (en) * | 2014-10-17 | 2015-01-28 | 绍兴金道齿轮箱有限公司 | Hydraulic drive gearbox |
| CN105736671B (en) * | 2016-04-13 | 2018-01-09 | 浙江中柴机器有限公司 | A kind of flexible Hydrodynamic transmission |
| CN106382263A (en) * | 2016-10-09 | 2017-02-08 | 合肥协力液压科技有限公司 | Automatic speed changing and inching integrated electro-hydraulic control valve |
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| CN102047000A (en) * | 2008-05-30 | 2011-05-04 | 阿斯图里亚汽车系统股份公司 | Torsional vibration damper |
| CN101660604A (en) * | 2009-09-16 | 2010-03-03 | 仲伟胜 | Flexible-connection gear box electro-hydraulic control valve for forklift |
| CN201825697U (en) * | 2010-07-30 | 2011-05-11 | 台励福机器设备(青岛)有限公司 | Forklift fluid power gearshift gearbox |
| CN102758900A (en) * | 2012-07-24 | 2012-10-31 | 安徽合力股份有限公司 | Hydrodynamic transmission used for hydrodynamic forklift and provided with pump mechanism |
| CN102897023A (en) * | 2012-10-23 | 2013-01-30 | 安徽合力股份有限公司 | Flexible-connection hydraulic transmission box with power generation mechanism |
| CN203604571U (en) * | 2013-10-14 | 2014-05-21 | 浙江中柴机器有限公司 | Hydraulic transmission speed changer with novel hydraulic control system |
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| CN103511582A (en) | 2014-01-15 |
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Denomination of invention: Hydrodynamic transmission speed changer with hydraulic control system Effective date of registration: 20171213 Granted publication date: 20160302 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Xinchang county subbranch Pledgor: Zhejiang Zhongchai Machine Co., Ltd. Registration number: 2017330000276 |
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Date of cancellation: 20190718 Granted publication date: 20160302 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Xinchang county subbranch Pledgor: Zhejiang Zhongchai Machine Co., Ltd. Registration number: 2017330000276 |