CN113389866A - Agricultural is HST hydraulic machinery transaxle for harvesting machine - Google Patents

Agricultural is HST hydraulic machinery transaxle for harvesting machine Download PDF

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Publication number
CN113389866A
CN113389866A CN202110649404.3A CN202110649404A CN113389866A CN 113389866 A CN113389866 A CN 113389866A CN 202110649404 A CN202110649404 A CN 202110649404A CN 113389866 A CN113389866 A CN 113389866A
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CN
China
Prior art keywords
shaft
gear
brake
assembly
hst
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Pending
Application number
CN202110649404.3A
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Chinese (zh)
Inventor
邵强
高奎增
齐金财
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Shandong Juming Machinery Co ltd
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Shandong Juming Machinery Co ltd
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Priority to CN202110649404.3A priority Critical patent/CN113389866A/en
Publication of CN113389866A publication Critical patent/CN113389866A/en
Pending legal-status Critical Current

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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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/005—Non electric hybrid systems, e.g. comprising mechanical and/or hydraulic and/or pneumatic drives
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/03—Driving mechanisms or parts thereof for harvesters or mowers fluid
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/06—Gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

The invention relates to an HST hydraulic mechanical variable speed drive axle for agricultural harvesting machinery, which comprises: the gearbox, bridge welding beam, the left side subtract assembly, the right side subtract assembly. A differential assembly connected with the left half shaft and the right half shaft is arranged in the gearbox, and the tail ends of the left half shaft and the right half shaft are sequentially connected with a transition shaft, a brake disc, a brake caliper assembly and a side reduction assembly. The edge subtraction assembly comprises: the flange shaft is subtracted while the input shaft is subtracted while the tail end drives the big gear. An input shaft, a main shaft, a middle shaft and an oil supporting disc are arranged in the gearbox, and an HST device and a brake shaft are arranged on two sides of the gearbox. The HST hydraulic mechanical variable speed drive axle for the agricultural harvesting machinery provided by the invention has the advantages that the gear shifting is operated by one rod, the walking efficiency is improved, the performance is reliable, the cost performance is high, and the requirements of farmers in various aspects are met.

Description

Agricultural is HST hydraulic machinery transaxle for harvesting machine
Technical Field
The invention relates to the technical field of motor vehicle traveling transmissions, in particular to an HST (hydraulic mechanical transmission) transaxle for agricultural harvesting machinery.
Background
The existing agricultural harvesting mechanical drive axle in domestic market is mainly divided into a mechanical clutch assembly variable speed drive axle, a single-motor hydrostatic variable speed drive axle and an HMT hydraulic stepless variable speed drive axle. When a variable speed drive axle of a mechanical clutch assembly is matched with a harvester, the phenomena of difficult gear engagement, weak walking and frequent replacement of the clutch assembly often occur in a gearbox; when the single-motor static hydraulic speed-changing drive axle is matched with a harvester, although the problems that the gearbox is difficult to engage, the walking is weak and the clutch assembly is frequently replaced are solved, the pure static hydraulic transmission is adopted, a hydraulic system bears a large load for a long time, a large amount of heat can be generated in the whole loop, the temperature of hydraulic oil is increased, and various faults can inevitably occur in the hydraulic system; when the HMT hydraulic stepless speed change drive axle is matched with a harvester, stepless speed change of the machine can be realized, the walking efficiency of the machine is improved, but the price of the whole machine is overhigh, the later maintenance cost is also very high, the oil consumption is higher, and the acceptance enthusiasm of agricultural machine users is not high.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides the HST hydraulic mechanical speed change drive axle for the agricultural harvesting machinery, one rod is used for operating and shifting gears, the walking efficiency is improved, the performance is reliable, the cost performance is high, and the requirements of farmers in various aspects are met.
The technical scheme adopted by the invention is as follows:
an HST hydromechanical transaxle for an agricultural harvesting machine, comprising:
mutual fixed connection's gearbox, bridge seam roof beam, install differential mechanism assembly in the gearbox, the coaxial left semi-axis, the right semi-axis that is provided with in differential mechanism assembly both sides, left semi-axis, right semi-axis end are provided with the transition axle, the terminal coaxial brake disc that is provided with of transition axle, the cover is equipped with the braking pincers assembly with fixed connection on the brake disc, and the terminal extension of transition axle is inserted and is equipped with the limit that is equipped with bridge seam roof beam fixed connection and subtracts the assembly, the limit subtracts the assembly, include: the side reduction input shaft is coaxially arranged with the transition shaft, and a tail end transmission large gear meshed with the side reduction input shaft is coaxially arranged on the side reduction flange shaft;
the gearbox content is equipped with input shaft, main shaft, jackshaft, holds in the palm the food tray, and the both sides of gearbox are provided with HST device, brake shaft:
the left and right both ends of input shaft are provided with the non-maintaining left bearing, the non-maintaining right bearing that are fixed in the gearbox, and input shaft one end extends to the gearbox and is provided with the ring flange outward, ring flange and engine transition mechanism coaxial coupling, the input shaft other end and the input coaxial coupling of HST device, the output and the main shaft coaxial coupling of HST device, be provided with low fender initiative shaft tooth, high fender driving gear on the main shaft.
The intermediate shaft is coaxially provided with: the low-gear driven gear is meshed with the low-gear driving shaft; a high-gear driven gear meshed with the high-gear driving gear; the gear hub sleeve part is arranged between the low-gear driven gear and the high-gear driven gear; the oil thrower is arranged in the oil supporting disc in a penetrating way; and the intermediate shaft teeth are meshed with the differential assembly.
Furthermore, a hydraulic pump and a hydraulic motor are arranged in the HST device, and stepless speed change is realized through hydraulic transmission.
Furthermore, the connection part of the left half shaft, the right half shaft and the transition shaft is provided with a half shaft sleeve, and the half shaft sleeve is used for enabling the left half shaft, the right half shaft and the transition shaft to be coaxially connected and rotate.
Furthermore, the joints of the transition shaft and the side reduction input shaft are respectively provided with a half shaft sleeve, and the half shaft sleeves are used for enabling the left half shaft, the right half shaft and the transition shaft to be coaxially connected and rotate.
Furthermore, the side reduction input shaft is coaxially provided with input shaft teeth, and the input shaft teeth are meshed with the tail end transmission gear wheel.
Furthermore, a brake belt assembly is arranged on the brake shaft.
Further, the intermediate shaft extends out of the gearbox and is coaxially provided with a brake wheel, and the brake wheel and the brake belt assembly are arranged in parallel.
Furthermore, a brake pull wire is connected to the starting end of the brake belt assembly, and the brake wheel is locked by the brake pull wire.
Further, the main shaft is arranged as a shaft in the gearbox.
An HST hydraulic mechanical variable speed driving method for an agricultural harvesting machine comprises the following steps:
low-speed operation:
an operator operates a low-speed gear, an engine runs, power is provided by a hydraulic pump and a hydraulic motor arranged in an input shaft HST device, stepless speed change is realized by hydraulic transmission of a double-interface hydraulic transmission, the power is transmitted to an intermediate shaft on which a low-gear driven gear meshed with the low-gear driving shaft is arranged through low-gear driving shaft teeth on a main shaft, the intermediate shaft transmits the power to a differential assembly through the intermediate shaft teeth, and sequentially drives a left half shaft/right half shaft, a transition shaft and a side reduction input shaft, and a tail end transmission large gear meshed with the side reduction input shaft drives a side reduction blue shaft to rotate until a driving wheel runs at a low speed;
high-speed operation:
an operator operates a high-speed gear, an engine runs, power is provided by a hydraulic pump and a hydraulic motor arranged in an input shaft HST device, stepless speed change is realized by hydraulic transmission of a double-interface hydraulic transmission, the power is transmitted to a high-gear driven gear meshed with the high-gear driving gear through a high-gear driving gear on a main shaft, the middle shaft transmits the power to a differential assembly through a middle shaft gear, and sequentially drives a left half shaft/right half shaft, a transition shaft and a side reduction input shaft, and a tail end transmission large gear meshed with the side reduction input shaft to drive a side reduction blue shaft to rotate until a driving wheel runs highly;
braking:
an operator operates the brake pull wire, and the brake caliper assembly gradually locks the brake disc to stop the driving wheel;
parking:
an operator operates the parking pull wire to lock the brake wheel by the brake belt assembly, and the brake wheel is locked.
The HST hydraulic mechanical variable speed drive axle for the agricultural harvesting machinery has the advantages that:
1. the gearbox assembly has few gears, a reverse gear transmission gear train is cancelled, and only high and low speed gears are arranged, so that the processing cost can be effectively reduced, and the operation and transmission efficiency is effectively improved; the hand brake of the brake band assembly occupies less space, has low cost and good hand brake effect; the middle shaft is provided with the oil throwing disc and is combined with the oil supporting disc arranged in the box body, so that bearings at two ends of the main shaft at a high position are lubricated more effectively, and the service life is prolonged greatly.
2. By adopting the HST hydraulic transmission system, power transmission is realized through mechanical transmission, stepless speed change is realized through combination of hydraulic machinery, the problems of difficulty in gear engagement, incapability of walking and frequent replacement of a clutch assembly of a gearbox are solved, the walking operation efficiency of the agricultural machine is improved, and the operating comfort of vast agricultural machinists on the harvester is improved.
3. And a two-shaft closed side damper assembly is adopted, so that the driving of the whole vehicle is more reliable, and the performance is more stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention, reference will now be made in brief to the accompanying drawings, which are needed in the description, and in which embodiments of the present invention are illustrated.
FIG. 1 is a general schematic diagram of an HST hydraulic mechanical transaxle for an agricultural harvesting machine according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of an HST hydraulic mechanical transaxle for an agricultural harvesting machine according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of an HST hydraulic mechanical transaxle for an agricultural harvesting machine according to an embodiment of the present invention.
In the figure:
1. the brake comprises an input shaft, 1a, a flange plate, 1b, a maintenance-free right bearing, 1c, a maintenance-free left bearing, 2, an HST device, 3, a gearbox, 4, a main shaft, 4a, a low-gear driving shaft tooth, 4b, a high-gear driving gear, 5, a middle shaft, 5a, a low-gear driven gear, 5b, a gear hub sleeve part, 5c, a high-gear driven gear, 5d, an oil thrower, 5e, a middle shaft tooth, 6, a differential assembly, 7, an oil tray, 8, a brake wheel, 9, a brake belt assembly, 10, a left half shaft, 11, a right half shaft, 12, a half shaft sleeve, 13, a transition shaft, 14, a side reduction input shaft, 14a side reduction input shaft tooth, 15, a tail end transmission gear wheel, 16, a side reduction flange shaft, 17, a side reduction assembly, 18, a brake disc, 19, a brake caliper assembly, 20, a bridge welding beam, 21 and a brake shaft.
Detailed Description
In order to clearly and clearly illustrate the specific implementation objects and the implementation modes of the invention, the technical scheme of the invention is completely described below, and the described examples are a part of the examples of the invention, but not all the examples. All other embodiments based on the described embodiments of the invention are within the scope of the invention without making creative efforts.
The invention relates to an HST hydraulic mechanical variable speed drive axle for agricultural harvesting machinery, which is shown in figure 1 and comprises:
the transmission case 3 and the bridge welded beam 20 are fixedly connected with each other, as shown in fig. 1 and fig. 2, a differential assembly 6 is installed in the transmission case 3, and a left half shaft 10 and a right half shaft 11 are coaxially arranged on two sides of the differential assembly 6. The tail ends of the left half shaft 10 and the right half shaft 11 are provided with a transition shaft 13, the joint of the left half shaft 10, the right half shaft 11 and the transition shaft 13 is provided with a half shaft sleeve 12, and the half shaft sleeve 12 is used for enabling the left half shaft 10, the right half shaft 11 and the transition shaft 13 to be coaxially connected and rotate. The terminal coaxial brake disc 18 that is provided with of transition axle 13, the cover is equipped with the braking pincers assembly 19 with 20 fixed connection on the brake disc 18, and the terminal extension of transition axle 13 is inserted and is equipped with the limit of 20 fixed connection with bridge welding beam and subtracts assembly 17, limit subtracts assembly 17 includes: the side reduction input shaft 14 is coaxially arranged with the transition shaft 13, and the side reduction flange shaft 16 is coaxially provided with input shaft teeth 14 a. The side reduction flange shaft 16 is coaxially provided with a tail end transmission big gear 15 meshed with the input shaft teeth 14 a. Half shaft sleeves 12 are respectively arranged at the joints of the transition shaft 13 and the side reduction input shaft 14, and the half shaft sleeves 12 are used for enabling the left half shaft 10, the right half shaft 11 and the transition shaft 13 to be coaxially connected and rotate.
As shown in fig. 1 and 2, the transmission 3 includes an input shaft 1, a main shaft 4, an intermediate shaft 5, and an oil pan 7. The main shaft 4 is arranged as a shaft in the gearbox 3. The two sides of the gearbox 3 are provided with an HST device 2 and a brake shaft 21, a hydraulic pump and a hydraulic motor are arranged in the HST device 2, and stepless speed change is achieved through hydraulic transmission. The brake shaft 21 is provided with a brake belt assembly 9, and the brake belt assembly 9 and the brake wheel 8 are arranged in parallel. The intermediate shaft 5 extends to the outside of the gearbox 3 and is coaxially provided with a brake wheel 8, and the brake wheel 8 and a brake belt assembly 9 are arranged in parallel. The starting end of the brake belt assembly 9 is connected with a brake pull wire, and the brake belt assembly 9 locks the brake wheel 8 through the brake pull wire.
The left and right both ends of input shaft 1 are provided with the non-maintaining left bearing 1c, the non-maintaining right bearing 1b that are fixed in the gearbox 3, and 1 one end of input shaft extends to the gearbox 3 and is provided with ring flange 1a outward, ring flange 1a and engine transition mechanism coaxial coupling, the input coaxial coupling of the 1 other end of input shaft and HST device 2, HST device 2's output and 4 coaxial coupling of main shaft, be provided with low gear initiative axle tooth 4a, high gear driving gear 4b on the main shaft 4.
The intermediate shaft 5 is coaxially provided with: a low-gear driven gear 5a meshed with the low-gear driving shaft teeth 4 a; a high-speed driven gear 5c meshed with the high-speed drive gear 4 b; a hub engaging member 5b provided between the low-stage driven gear 5a and the high-stage driven gear 5 c; an oil thrower 5d inserted into the oil support plate 7; and intermediate shaft teeth 5e engaged with the differential assembly 6.
According to the specific structure of the HST hydraulic mechanical transaxle for the agricultural harvesting machine in the above embodiment, a method for driving the HST hydraulic mechanical transaxle for the agricultural harvesting machine in a variable speed manner is further described as follows:
low-speed operation:
an operator operates a low-speed gear, an engine runs, power is provided for a hydraulic pump and a hydraulic motor arranged in an HST device 2 through an input shaft 1, stepless speed change is achieved through hydraulic transmission of a double-interface hydraulic speed changer, the power is transmitted to an intermediate shaft 5 where a low-gear driven gear 5a meshed with the low-gear driving gear 4a is located through a low-gear driving shaft gear 4a on a main shaft 4, the intermediate shaft 5 transmits the power to a differential assembly 6 through an intermediate shaft gear 5e, and sequentially drives a left half shaft 10/a right half shaft 11, a transition shaft 13, a side reduction input shaft 14, a tail end transmission large gear 15 meshed with the side reduction input shaft 14, and a side reduction blue shaft 16 is driven to rotate until a driving wheel runs at a low speed;
high-speed operation:
an operator operates a high-speed gear, an engine runs, power is provided for a hydraulic pump and a hydraulic motor arranged in an HST device 2 through an input shaft 1 of the engine 1, stepless speed change is realized through hydraulic transmission of a double-interface hydraulic transmission, the power is transmitted to a high-gear driven gear 5c meshed with the high-gear driving gear 4b through a high-gear driving gear 4b on a main shaft 4, the power is transmitted to a differential assembly 6 through a middle shaft gear 5e on an intermediate shaft 5 where the intermediate shaft 5 is located, the intermediate shaft 5 sequentially drives a left half shaft 10/a right half shaft 11, a transition shaft 13 and a side reduction input shaft 14, and a tail end transmission large gear 15 meshed with the side reduction input shaft 14 drives a side reduction blue shaft 16 to rotate until a driving wheel runs highly;
braking:
when an operator operates a brake pull wire, the brake caliper assembly 19 gradually locks the brake disc 18, so that the driving wheel stops rotating;
parking:
an operator operates the parking pull wire to lock the brake wheel 8 by the brake belt assembly 9, so that the brake wheel 8 is locked.
Based on the above, it is instructive to provide an embodiment of an HST hydraulic mechanical transaxle for an agricultural harvesting machine according to the present invention, and it is clear that various changes and modifications can be made by workers in the field without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides a HST hydraulic machinery transaxle for agricultural harvesting machinery which characterized in that:
gearbox (3), bridge seam beam (20) including mutual fixed connection, install differential mechanism assembly (6) in gearbox (3), differential mechanism assembly (6) both sides are coaxial to be provided with left semi-axis (10), right semi-axis (11), left semi-axis (10), right semi-axis (11) end are provided with transition axle (13), the terminal coaxial brake disc (18) that is provided with of transition axle (13), the cover is equipped with brake caliper assembly (19) with (20) fixed connection on brake disc (18), and transition axle (13) end is extended and is inserted and be equipped with limit subtracting assembly (17) with bridge seam beam (20) fixed connection, limit subtracting assembly (17) include: the side reduction type flange shaft (16) and the side reduction input shaft (14) are coaxially arranged with the transition shaft (13), and the side reduction type flange shaft (16) is coaxially provided with a tail end transmission large gear (15) meshed with the side reduction input shaft (14);
the transmission case (3) is provided with an input shaft (1), a main shaft (4), an intermediate shaft (5) and an oil supporting disc (7), and the two sides of the transmission case (3) are provided with an HST device (2) and a brake shaft (21):
the left and right ends of the input shaft (1) are provided with a maintenance-free left bearing (1c) and a maintenance-free right bearing (1b) which are fixed in the gearbox (3), one end of the input shaft (1) extends out of the gearbox (3) and is provided with a flange plate (1a), the flange plate (1a) is coaxially connected with the engine transition mechanism, the other end of the input shaft (1) is coaxially connected with the input end of the HST device (2), the output end of the HST device (2) is coaxially connected with the main shaft (4), the main shaft (4) is provided with a low-gear driving shaft tooth (4a) and a high-gear driving gear (4b),
the intermediate shaft (5) is coaxially provided with: a low-gear driven gear (5a) meshed with the low-gear driving shaft teeth (4 a); a high-gear driven gear (5c) meshed with the high-gear driving gear (4 b); a gear hub sleeve piece (5b) arranged between the low-gear driven gear (5a) and the high-gear driven gear (5 c); an oil thrower (5d) arranged in the oil supporting disc (7) in a penetrating way; and intermediate shaft teeth (5e) meshed with the differential assembly (6).
2. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 1, wherein:
a hydraulic pump and a hydraulic motor are arranged in the HST device (2), and stepless speed change is achieved through hydraulic transmission.
3. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 1, wherein:
the half shaft sleeve (12) is arranged at the joint of the left half shaft (10), the right half shaft (11) and the transition shaft (13), and the half shaft sleeve (12) is used for enabling the left half shaft (10), the right half shaft (11) and the transition shaft (13) to be coaxially connected and rotate.
4. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 3, wherein:
half shaft sleeves (12) are respectively arranged at the joints of the transition shaft (13) and the side reduction input shaft (14), and the half shaft sleeves (12) are used for enabling the left half shaft (10), the right half shaft (11) and the transition shaft (13) to be coaxially connected and rotate.
5. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 1, wherein:
the side reduction input shaft (14) is coaxially provided with input shaft teeth (14a), and the input shaft teeth (14a) are meshed with the tail end transmission large gear (15).
6. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 1, wherein:
and a brake belt assembly (9) is arranged on the brake shaft (21).
7. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 6, wherein:
the intermediate shaft (5) extends out of the gearbox (3) and is coaxially provided with a brake wheel (8), and the brake wheel (8) and the brake belt assembly (9) are arranged in parallel.
8. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 7, wherein:
the starting end of the brake band assembly (9) is connected with a brake pull wire, and the brake band assembly (9) locks the brake wheel (8) through the brake pull wire.
9. The HST hydraulic mechanical transaxle for an agricultural harvesting machine of claim 8, wherein:
the main shaft (4) is arranged as a shaft in the gearbox (3).
10. The method for the variable speed driving of the HST hydraulic machine for agricultural harvesting machinery of claim 9, wherein:
low-speed operation:
an operator operates a low-speed gear, an engine runs, power is provided for a hydraulic pump and a hydraulic motor arranged in an HST device (2) through an input shaft (1), then stepless speed change is realized through hydraulic transmission of a double-interface hydraulic transmission, the power is transmitted to an intermediate shaft (5) where a low-gear driven gear (5a) meshed with the low-gear driving shaft gear (4a) is located through a low-gear driving shaft gear (4a) on a main shaft (4), the intermediate shaft (5) transmits the power to a differential assembly (6) through an intermediate shaft gear (5e), and sequentially drives a left half shaft (10)/a right half shaft (11), a transition shaft (13), a side reduction input shaft (14) and a tail end transmission large gear (15) meshed with the side reduction input shaft (14) to drive a side reduction blue shaft (16) to rotate until a driving wheel runs at a low speed;
high-speed operation:
an operator operates a high-speed gear, an engine runs, power is provided for a hydraulic pump and a hydraulic motor arranged in an HST device (2) through an input shaft (1), then stepless speed change is realized through hydraulic transmission of a double-interface hydraulic transmission, the power is transmitted to a high-gear driven gear (5c) meshed with the high-gear driving gear (4b) through a high-gear driving gear (4b) on a main shaft (4), the middle shaft (5) transmits the power to a differential assembly (6) through a middle shaft gear (5e), and sequentially drives a left half shaft (10)/a right half shaft (11), a transition shaft (13), a side reduction input shaft (14) and a tail end transmission large gear (15) meshed with the side reduction input shaft (14) to drive a side reduction blue shaft (16) to rotate until a driving wheel runs highly;
braking:
an operator operates a brake pull wire, and a brake caliper assembly (19) gradually locks a brake disc (18) to stop a driving wheel;
parking:
an operator operates the parking pull wire to enable the brake belt assembly (9) to lock the brake wheel (8), and the brake wheel (8) is locked.
CN202110649404.3A 2021-06-10 2021-06-10 Agricultural is HST hydraulic machinery transaxle for harvesting machine Pending CN113389866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110649404.3A CN113389866A (en) 2021-06-10 2021-06-10 Agricultural is HST hydraulic machinery transaxle for harvesting machine

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Application Number Priority Date Filing Date Title
CN202110649404.3A CN113389866A (en) 2021-06-10 2021-06-10 Agricultural is HST hydraulic machinery transaxle for harvesting machine

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Publication Number Publication Date
CN113389866A true CN113389866A (en) 2021-09-14

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5201692A (en) * 1991-07-09 1993-04-13 Hydro-Gear Limited Partnership Rider transaxle having hydrostatic transmission
CN105782405A (en) * 2016-05-09 2016-07-20 西华大学 Transmission speed change device for small agricultural machine
CN207131765U (en) * 2017-09-08 2018-03-23 雷沃重工股份有限公司 Wheel type harvester tool brakes
CN110332296A (en) * 2019-08-01 2019-10-15 山东巨明机械有限公司 Harvest machinery hydraulic machinery continuously variable transaxle
CN210265742U (en) * 2019-08-01 2020-04-07 山东巨明机械有限公司 Hydraulic mechanical stepless speed change drive axle for harvesting machinery
CN210919893U (en) * 2019-11-11 2020-07-03 雷沃重工股份有限公司 Parking device and agricultural machine
CN112277637A (en) * 2020-10-29 2021-01-29 温岭市明华齿轮有限公司 Harvester front drive axle assembly
CN212899609U (en) * 2020-03-27 2021-04-06 山东金大丰机械有限公司 Hydraulic machinery infinitely variable drive system and agricultural vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5201692A (en) * 1991-07-09 1993-04-13 Hydro-Gear Limited Partnership Rider transaxle having hydrostatic transmission
CN105782405A (en) * 2016-05-09 2016-07-20 西华大学 Transmission speed change device for small agricultural machine
CN207131765U (en) * 2017-09-08 2018-03-23 雷沃重工股份有限公司 Wheel type harvester tool brakes
CN110332296A (en) * 2019-08-01 2019-10-15 山东巨明机械有限公司 Harvest machinery hydraulic machinery continuously variable transaxle
CN210265742U (en) * 2019-08-01 2020-04-07 山东巨明机械有限公司 Hydraulic mechanical stepless speed change drive axle for harvesting machinery
CN210919893U (en) * 2019-11-11 2020-07-03 雷沃重工股份有限公司 Parking device and agricultural machine
CN212899609U (en) * 2020-03-27 2021-04-06 山东金大丰机械有限公司 Hydraulic machinery infinitely variable drive system and agricultural vehicle
CN112277637A (en) * 2020-10-29 2021-01-29 温岭市明华齿轮有限公司 Harvester front drive axle assembly

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