CN115013483A - Transmission system for automatic gearbox of tracked vehicle - Google Patents
Transmission system for automatic gearbox of tracked vehicle Download PDFInfo
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- CN115013483A CN115013483A CN202210614665.6A CN202210614665A CN115013483A CN 115013483 A CN115013483 A CN 115013483A CN 202210614665 A CN202210614665 A CN 202210614665A CN 115013483 A CN115013483 A CN 115013483A
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- transmission case
- control
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/001—Steering non-deflectable wheels; Steering endless tracks or the like control systems
- B62D11/005—Hydraulic control systems
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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
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a transmission system for an automatic gearbox of a crawler vehicle, which comprises a gearbox transmission case, wherein the gearbox transmission case is connected with the transmission case through a bolt and a connecting flange, a working space is arranged in the transmission case, a driving shaft is rotatably arranged on the inner wall of one side of the working space and penetrates through the transmission case, one end of the driving shaft, which is positioned outside the transmission case, is connected with an output shaft of the gearbox, a transmission case device of a transmission main shaft for converting the power direction by 90 degrees T-shaped is used for inputting the power generated by an engine and the automatic gearbox into a main spiral bevel gear of the transmission case, the power output by the automatic gearbox is subjected to 90-degree T-shaped conversion through a driven bevel gear and the transmission main shaft in the transmission case, and then the power is meshed with a planetary gear and an input main shaft of a left planetary steering engine system and a right planetary steering engine through gear rings at the left end and the right end of the transmission case, the hydraulic system is matched to carry out automatic speed change, left and right steering and brake control on the vehicle.
Description
Technical Field
The invention belongs to the technical field of gearboxes, and particularly relates to a transmission system for an automatic gearbox of a tracked vehicle.
Background
At present, the automatic speed changing control systems of few crawler-type rescue and relief vehicle manufacturers on the market are in the research and development stage.
The original crawler-type emergency rescue and relief vehicle speed change system adopts a manual military T-shaped speed change box, a hydraulic system and a planetary hydraulic steering gear system, the transmission system of the speed change box has a complex design, a main clutch and the speed change box are arranged in one box body, and the inside of the main clutch and the speed change box are separated by a partition plate; the driving part is rigidly connected with an engine flywheel, the driven part is connected with a driving shaft spline of the gearbox, and power from the engine to the gearbox is transmitted or cut off in a mode of combining and separating friction plates. The system is formed by matching and combining a plurality of gear sets, and the vehicle needs to be manually shifted and operated after a pedal clutch pedal cuts off the power connection between an engine and a gearbox in the process of forward running, so that a driver of the vehicle is complicated and difficult to operate and drive and needs a driver with strong professional; the working strength of the driver is high, so that the driver is easy to fatigue and risk; the manufacturing cost is extremely high; the transmission efficiency is greatly reduced due to the transmission of multiple mechanical structures; the structural parts are numerous, the processing and manufacturing difficulty is high, and the time period for processing the parts is long.
Disclosure of Invention
In order to solve the above problems of the prior art, the present invention aims to provide a transmission system for an automatic gearbox of a tracked vehicle.
The technical scheme adopted by the invention is as follows:
a transmission system for an automatic gearbox of a tracked vehicle comprises a gearbox and a transmission case, wherein the gearbox is connected with the transmission case through bolts and a connecting flange, a working space is arranged in the transmission case, a driving shaft is rotatably arranged on the inner wall of one side of the working space, the driving shaft penetrates through the transmission case, one end of the driving shaft, which is positioned outside the transmission case, is connected with an output shaft of the transmission case, one end of the driving shaft, which is positioned in the working space, is detachably provided with a transmission bevel gear, one side of the transmission bevel gear is engaged with a driving bevel gear, the driving bevel gear is fixedly arranged at one end of a driving shaft, the driving shaft is rotationally connected with the inner wall of one side of the working space, the driving shaft penetrates through the transmission case, and one end, far away from the driving bevel gear, of the driving shaft is positioned outside the transmission case; and the driving shaft transmits power to the driving wheel through the steering gear, the coupler and the speed reducer in sequence.
In the technical scheme, a technical mature heavy truck automatic gearbox system, a transmission box system for carrying out T-shaped conversion on power, a planetary hydraulic steering engine system and an operating hydraulic system are used for realizing the solution of automatic speed changing operation of the civil tracked vehicle. The system designed by the new technology improves the dynamic characteristics of the vehicle to the maximum extent, simplifies the operation and reduces the energy consumption. The production cost of the gearbox with the same power is 4-5 times of the invention, and the invention has great significance on the automatic speed change operation of the civil tracked vehicle.
Preferably, the hydraulic system is used for braking a steering engine, and comprises an engine output duplex pump, one side of the engine output duplex pump is connected with a main constant pressure valve, the main constant pressure valve is respectively connected with and controls a steering valve, a right brake oil cylinder and a left brake oil cylinder, a radiator is arranged between the right brake oil cylinder and the left brake oil cylinder, the radiator is positioned on one side of the steering valve, one side of the engine output duplex pump is connected with a filter, and a cyclone filter is arranged between the main constant pressure valve and the engine output duplex pump.
In the technical scheme, the hydraulic system adopts the form that an output of an oil pump, a pipeline connecting filter, a main distribution valve, a steering valve, a transmission case and a brake oil cylinder are assembled at a power take-off port of an engine, and provides clean hydraulic energy with set pressure and flow for the transmission case with power direction conversion, a planetary steering engine operating device and a hydraulic brake cylinder of a parking brake operating device. The lubrication system provides lubrication oil to friction surfaces of the gearbox and the planetary steering gear.
Preferably, an engine oil temperature adjusting valve is arranged between the right brake oil cylinder and the main constant pressure valve, one end of the engine oil temperature adjusting valve is communicated with the right brake oil cylinder, and the other end of the engine oil temperature adjusting valve is communicated with the radiator.
Preferably, the steering system further comprises a foot braking device and a steering gear, wherein the foot braking device and the steering gear are located on one side of the coupler, the foot braking device controls the right brake cylinder and the left brake cylinder, and the steering gear controls a steering valve of the hydraulic system through a steering rod.
Preferably, a transmission shaft is rotatably arranged on the inner wall of one side of the working space, which is far away from the driving shaft, the transmission shaft penetrates through the transmission box, and the structure of one end, which is positioned outside the transmission box, of the transmission shaft is the same as that of one end, which is positioned outside the transmission box, of the driving shaft; and one end of the transmission shaft, which is positioned in the working space, is provided with a control mechanism for transmitting the power of the driving shaft to the transmission shaft.
Preferably, the control mechanism comprises a telescopic shaft, the telescopic shaft is of a telescopic structure, the telescopic shaft is controlled to stretch and retract by a hydraulic system, one end of the telescopic shaft is rotatably connected with the inner wall of one side of the working space, a transmission gear and a control gear are fixedly arranged on the telescopic shaft, one side of the transmission gear is meshed with a driving gear, the driving gear is fixedly arranged on a driving shaft, a reversing gear is arranged on one side of the control gear and fixedly arranged on a transmission shaft, a special-shaped gear is arranged on one side of the reversing gear, and the special-shaped gear is fixedly connected with the transmission shaft.
In the technical scheme, the transmission main shaft is a transmission box device which converts the power direction into a T shape of 90 degrees; the rear end of the transmission case is assembled by adopting a gear ring and a power output main shaft of an automatic transmission in a meshing way, the power generated by an engine and an automatic gearbox is input to a main spiral bevel gear of the transmission case, the power output by the automatic transmission case is subjected to 90-degree T-shaped conversion through a driven bevel gear and a transmission main shaft in the transmission case, and then the gear rings at the left and right ends of the transmission case are in meshing connection with a planetary gear and an input main shaft of a left and right planetary steering gear system and are matched with a hydraulic system to carry out automatic speed change and driving control of left and right steering and braking on a vehicle.
Preferably, the control mechanism comprises a telescopic shaft, the telescopic shaft is rotatably arranged in a sleeve, an electric cylinder is arranged in the sleeve, and the electric cylinder controls the telescopic shaft to stretch; a transmission gear and a control gear are fixedly arranged on the telescopic shaft, one side of the transmission gear is meshed with a driving gear, the driving gear is fixedly arranged on a driving shaft, one side of the control gear is provided with a reversing gear, the reversing gear is fixedly arranged on a transmission shaft, one side of the reversing gear is provided with a special-shaped gear, and the special-shaped gear is fixedly connected with the transmission shaft; the telescopic one side is equipped with the stopper, the sleeve with the stopper rotates to be connected, one side of stopper is equipped with the control pneumatic cylinder, the control pneumatic cylinder with one side inner wall fixed connection of working space, the control pneumatic cylinder control has control piston, the stopper with control piston fixed connection.
In the technical scheme, through the gear set capable of being flexibly separated and meshed, the radius steering of the vehicle and the center steering of the vehicle can be realized, the separation and meshing processes of the gear set adopt a matching mode of radial movement and axial movement, and the situation that the teeth of the gear are dead against each other or are greatly abraded can be avoided.
Preferably, the special-shaped gear is an inner gear ring structure, and the control gear is meshed with the reversing gear or the special-shaped gear.
In above-mentioned technical scheme, the internal tooth meshing structure can change transmission speed, can compensate through the speed reducer.
Preferably, the limiting block is fixedly provided with a mounting piece, the mounting piece is fixedly provided with a sliding rod, the sliding rod is provided with a rack in a sliding manner, one side of the rack is meshed with a gear ring, the gear ring is fixedly connected with the sleeve, one side of the rack is fixedly provided with a mounting block, one side of the control hydraulic cylinder is provided with a connecting block, a transmission rod is arranged between the connecting block and the mounting block, and two ends of the transmission rod are respectively hinged with the connecting block and the mounting block.
In the technical scheme, the gear moves radially, the gear rotates in a small range through the rack and the shaft sleeve, and accurate meshing between the separated and re-meshed gear sets is further ensured.
Preferably, a one-way bearing is arranged at the joint of the sleeve and the telescopic shaft.
In the technical scheme, the sleeve cannot be driven by the rotation of the telescopic shaft under the conventional condition, and the telescopic shaft can be driven to rotate in a small range by the rotation of the sleeve.
The invention has the beneficial effects that: the invention relates to a transmission system for an automatic gearbox of a tracked vehicle, which is designed and additionally provided with a transmission box device which is provided with a high-efficiency double-spiral bevel gear and a transmission main shaft and converts the power direction into a T shape at 90 degrees; the rear end of the transmission case is assembled by adopting a gear ring and a power output main shaft of an automatic transmission in a meshing way, the power generated by an engine and an automatic gearbox is input to a main spiral bevel gear of the transmission case, the power output by the automatic transmission case is subjected to 90-degree T-shaped conversion through a driven bevel gear and a transmission main shaft in the transmission case, and then the gear rings at the left and right ends of the transmission case are in meshing connection with a planetary gear and an input main shaft of a left and right planetary steering gear system and are matched with a hydraulic system to carry out automatic speed change and driving control of left and right steering and braking on a vehicle. The hydraulic system adopts the form that an engine power take-off port is assembled with an oil pump output, a pipeline is connected with a filter, a main distribution valve, a steering valve, a transmission case and a brake oil cylinder, and provides clean hydraulic energy with set pressure and flow for the transmission case with power direction conversion, a planetary steering engine operating device and a hydraulic brake cylinder of a parking brake operating device. The lubrication system provides lubrication oil to friction surfaces of the gearbox and the planetary steering gear.
In the transmission case, the gear set capable of being flexibly separated and meshed is designed, so that the radius steering of a vehicle and the center steering of the vehicle can be realized, and the separation and meshing processes of the gear set adopt a matching mode of radial movement and axial movement, so that the situation that the teeth of the gear are dead against each other or are greatly abraded can be avoided; and the gear moves radially, so that the gear rotates in a small range through the rack and the shaft sleeve, and accurate meshing between the separated and re-meshed gear sets is further ensured.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal construction of the transmission of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic illustration of the control mechanism of FIG. 2 according to the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3 at A according to the present invention;
fig. 5 is a schematic diagram of the hydraulic system of fig. 1 according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Embodiments of the present invention are described below in conjunction with figures 1-5,
in one embodiment of the invention, a transmission system for an automatic gearbox of a track-laying vehicle comprises a gearbox 11 and a transmission case 13, wherein the gearbox 11 is connected with the transmission case 13 through bolts and a connecting flange 12, a working space 52 is arranged in the transmission case 13, a driving shaft 67 is rotatably arranged on the inner wall of one side of the working space 52, the driving shaft 67 penetrates through the transmission case 13, one end of the driving shaft 67, which is positioned outside the transmission case 13, is connected with an output shaft of the gearbox 11, one end of the driving shaft 67, which is positioned in the working space 52, is detachably provided with a transmission bevel gear 66, one side of the transmission bevel gear 66 is engaged with a driving bevel gear 65, the driving bevel gear 65 is fixedly arranged at one end of a driving shaft 64, the driving shaft 64 is rotatably connected with the inner wall of one side of the working space 52, and the driving shaft 64 penetrates through the transmission case 13, the end of the drive shaft 64 remote from the drive bevel gear 65 is located outside the transmission case 13; the driving shaft 64 transmits power to the driving wheel 19 through the steering gear 14, the coupler 15 and the speed reducer 16 in sequence; the drive shaft 64 and the drive shaft 70 transmit power to the reducer 16: planetary gears and inner frame shafts of the left and right steering gears 14 are engaged with the left and right couplings 15, and the speed reducers 16 at both ends transmit power to the driving wheels 19 on the driving wheels at both ends, so that the driving wheels start to rotate.
Beneficially, the hydraulic system 20 is further included, the hydraulic system 20 is used for braking the steering engine 14, the hydraulic system 20 includes an engine output duplex pump 22, a main constant pressure valve 24 is connected to one side of the engine output duplex pump 22, the main constant pressure valve 24 is respectively connected with and controls a steering valve 26, a right brake cylinder 27 and a left brake cylinder 28, a radiator 29 is arranged between the right brake cylinder 27 and the left brake cylinder 28, the radiator 29 is located at one side of the steering valve 26, a filter 30 is connected to one side of the engine output duplex pump 22, and a cyclone filter is arranged between the main constant pressure valve 24 and the engine output duplex pump 22; an engine oil temperature adjusting valve 25 is arranged between the right brake oil cylinder 27 and the main constant pressure valve 24, one end of the engine oil temperature adjusting valve 25 is communicated with the right brake oil cylinder 27, and the other end of the engine oil temperature adjusting valve 25 is communicated with the radiator 29; still include foot brake device 17 and direction machine 18, foot brake device 17 with direction machine 18 is located one side of shaft coupling 15, foot brake device 17 control right brake cylinder 27 with left brake cylinder 28, direction machine 18 passes through the direction lever control hydraulic system 20's diverter valve 26. The hydraulic system adopts the form that an engine power take-off port is assembled with an oil pump output, a pipeline is connected with a filter, a main distribution valve, a steering valve, a transmission case and a brake oil cylinder, and provides clean hydraulic energy with set pressure and flow for the transmission case with power direction conversion, a planetary steering engine operating device and a hydraulic brake cylinder of a parking brake operating device. The lubrication system provides lubrication oil to friction surfaces of the gearbox and the planetary steering gear.
In another embodiment of the present invention, a transmission shaft 70 is rotatably disposed on an inner wall of the working space 52 on a side away from the driving shaft 64, the transmission shaft 70 penetrates through the transmission case 13, and an end of the transmission shaft 70 located outside the transmission case 13 has the same structure as an end of the driving shaft 64 located outside the transmission case 13; the end of the drive shaft 70 located within the workspace 52 has a control mechanism for transmitting the power from the drive shaft 64 to the drive shaft 70.
Beneficially, the control mechanism includes a telescopic shaft 53, the telescopic shaft 53 is of a telescopic structure, the telescopic shaft 53 is controlled to be telescopic by a hydraulic system, one end of the telescopic shaft 53 is rotatably connected with the inner wall of one side of the working space 52, a transmission gear 62 and a control gear 71 are fixedly arranged on the telescopic shaft 53, one side of the transmission gear 62 is engaged with a driving gear 63, the driving gear 63 is fixedly arranged on a driving shaft 64, a reversing gear 69 is arranged on one side of the control gear 71, the reversing gear 69 is fixedly arranged on a transmission shaft 70, a special-shaped gear 68 is arranged on one side of the reversing gear 69, and the special-shaped gear 68 is fixedly connected with the transmission shaft 70.
In another embodiment of the present invention, the control mechanism includes a telescopic shaft 53, the telescopic shaft 53 is rotatably disposed in a sleeve 54, an electric cylinder is disposed in the sleeve 54, and the electric cylinder controls the telescopic shaft 53 to extend and retract; a transmission gear 62 and a control gear 71 are fixedly arranged on the telescopic shaft 53, one side of the transmission gear 62 is engaged with a driving gear 63, the driving gear 63 is fixedly arranged on a driving shaft 64, one side of the control gear 71 is provided with a reversing gear 69, the reversing gear 69 is fixedly arranged on a transmission shaft 70, one side of the reversing gear 69 is provided with a special-shaped gear 68, and the special-shaped gear 68 is fixedly connected with the transmission shaft 70; a limiting block 55 is arranged on one side of the sleeve 54, the sleeve 54 is rotatably connected with the limiting block 55, a control hydraulic cylinder 57 is arranged on one side of the limiting block 55, the control hydraulic cylinder 57 is fixedly connected with the inner wall of one side of the working space 52, a control piston 56 is controlled by the control hydraulic cylinder 57, and the limiting block 55 is fixedly connected with the control piston 56; the special-shaped gear 68 is an inner gear ring structure, and the control gear 71 is meshed with the reversing gear 69 or the special-shaped gear 68; a mounting piece 72 is fixedly arranged on the limiting block 55, a sliding rod 74 is fixedly arranged on the mounting piece 72, a rack 73 is arranged on the sliding rod 74 in a sliding manner, a gear ring 61 is meshed on one side of the rack 73, the gear ring 61 is fixedly connected with the sleeve 54, a mounting block 60 is fixedly arranged on one side of the rack 73, a connecting block 58 is arranged on one side of the control hydraulic cylinder 57, a transmission rod 59 is arranged between the connecting block 58 and the mounting block 60, and two ends of the transmission rod 59 are respectively hinged with the connecting block 58 and the mounting block 60; a one-way bearing is arranged at the joint of the sleeve 54 and the telescopic shaft 53. The control hydraulic cylinder 57 is started, the control piston 56 is controlled to contract, the limiting block 55 is driven to move, the sleeve 54 and the telescopic shaft 53 move along with the limiting block 55, the control gear 71 and the transmission gear 62 are disengaged, the electric cylinder in the sleeve 54 controls the telescopic shaft 53 to extend out, and the control gear 71 and the reversing gear 69 are not on the same horizontal plane; the control piston 56 extends, the transmission gear 62 and the driving gear 63 return to the meshing position again, the electric cylinder in the sleeve 54 controls the telescopic shaft 53 to extend further, and the control gear 71 is meshed with the special-shaped gear 68; in the process, the relative position of the hydraulic cylinder 57 and the limiting block 55 is controlled to move, so that the transmission rod 59 rotates, the rack 73 slides along the sliding rod 74, the rack 73 drives the gear ring 61 to rotate, the sleeve 54 drives the telescopic shaft 53 to rotate in a small range under the action of the one-way bearing, and the problem that the gears are just dead against each other due to gear separation and meshing is solved. The control gear 71 changes from meshing with the shaped gear 68 to meshing with the reversing gear 69, in the same manner as described above.
The working principle of the invention is as follows:
the dual-FC 6A-140 hydraulic automatic gearbox 11 is connected with the connecting flange 12 and the gearbox 13 by high-strength bolts; the power output gear shaft of the dual-FC 6A-140 hydraulic automatic gearbox 11 is in assembled meshing with the driving shaft 67 of the transmission case 13, and the power of the hydraulic automatic gearbox 11 is transmitted to the transmission bevel gear 66 of the transmission case 13; the transmission bevel gear 66 drives the driving bevel gear 65 to rotate, the driving bevel gear 65 drives the driving shaft 64 to rotate, the driving shaft 64 drives the transmission gear 62 to rotate, the transmission gear 62 drives the telescopic shaft 53 to rotate, the telescopic shaft 53 drives the control gear 71 to rotate, the control gear 71 drives the reversing gear 69 to rotate, and the reversing gear 69 drives the transmission shaft 70 to rotate;
when the steering rod is in the horizontal position, the automatic gear shifter and the pedal accelerator are shifted to carry out forward and backward operation on the vehicle; when the vehicle runs, a foot brake installation pedal is stepped, the steering valve 26 of the steering valve is pulled through the foot brake device 17, the brake valve rod enables the brake slide valve to gradually move, the right brake oil cylinder 27 and the left brake oil cylinder 28 are started, the brake drum is locked by pulling a brake band through hydraulic pressure, and vehicle brake control is carried out on the vehicle. Rotating a direction lever of the steering gear 18, pulling a left (right) pull arm on a steering valve 26 of the hydraulic system 20 to enable a slide valve in the steering valve 26 to start to gradually move so as to adjust the hydraulic pressure of a lock clutch oil cylinder, gradually separating a friction plate of the lock clutch, enabling a frame shaft not to output power any more, and enabling the vehicle to perform free radius steering; the steering rod continues to rotate, the pressure in the brake clutch oil cylinder is increased, the brake clutch is gradually combined, the steering radius is reduced, and the vehicle starts to turn in radius; when the direction rod rotates to the bottom, the oil path leading to the brake clutch is closed, and the oil return path of the brake clutch is opened, so that the brake clutch returns to the original state, namely the separation state. The passage leading to the hydraulic oil cylinder of the parking brake device at the steering side is opened, the parking brake device works, and the brake drum is locked by the brake belt, namely, the power output shaft at the steering side is locked by braking. The driving wheel on the side stops rotating. At this time, the frame shaft in the planetary steering gear in the speed reducer 16 is not moved, the gear ring drives the planetary gear to rotate, the sun gear idles in the opposite direction, the gear ring connected with the main shaft is not braked, the vehicle performs pivot steering, and the steering radius at this time is the minimum steering radius of the vehicle.
In particular, the extension of the electric cylinder control telescopic shaft 53 in the sleeve 54 can enable the control gear 71 to be meshed with the special-shaped gear 68, the rotation direction of the transmission shaft 70 is changed through internal gear transmission, the transmission of one side is changed through matching with the speed reducer 16, the reverse and same-speed rotation of the driving wheels 19 on two sides can be realized, and the vehicle can perform central steering.
In order to further improve the using effect of the invention, two (not shown) special-shaped gears 68 can be arranged, namely, two special-shaped gears 68 (two sides are symmetrical) are respectively arranged on two sides of the control hydraulic cylinder 57, the driving gear 63 drives one special-shaped gear 68, and power is transmitted to the other special-shaped gear 68 through the transmission gear 62 and the control gear 71, so that the power can be firstly decelerated and accelerated (the addition and subtraction proportion is equal), the power on two sides is the same and reversed, and the rotating speed does not need to be adjusted again through a speed reducer.
In order to further improve the using effect of the invention, the telescopic shaft 53 can be set into three sections (not shown), universal joint transmission is arranged between the three sections of telescopic shafts 53, so that the engagement between the transmission gear 62 and the driving gear 63 at one end of the telescopic shaft 53 is not changed, only the engagement between the control gear 71 at the other end and the special-shaped gear 68 or the reversing gear 69 is changed, the position of the specific section of telescopic shaft 53 connected with the transmission gear 62 is not changed, the middle section of telescopic shaft 53 is not fixed (floating), the radial movement of the section of telescopic shaft 53 connected with the control gear 71 is controlled by the control hydraulic cylinder 57, and the axial movement of the section of telescopic shaft 53 is controlled by the electric cylinder; the gear which does not need to be replaced and is in a meshed state does not move, and unnecessary abrasion is avoided.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (10)
1. A transmission system for a tracked vehicle automatic transmission, characterized by: the transmission device comprises a transmission case of the transmission case, wherein the transmission case is connected with the transmission case through bolts and a connecting flange, a working space is arranged in the transmission case, a driving shaft is rotatably arranged on the inner wall of one side of the working space and penetrates through the transmission case, one end of the driving shaft, which is positioned outside the transmission case, is connected with an output shaft of the transmission case, one end of the driving shaft, which is positioned in the working space, is detachably provided with a transmission bevel gear, one side of the transmission bevel gear is engaged with a driving bevel gear, the driving bevel gear is fixedly arranged at one end of a driving shaft, the driving shaft is rotatably connected with the inner wall of one side of the working space, the driving shaft penetrates through the transmission case, and one end, which is far away from the driving bevel gear, of the driving shaft is positioned outside the transmission case; and the driving shaft transmits power to the driving wheel through the steering gear, the coupler and the speed reducer in sequence.
2. A drivetrain for a tracked vehicle automatic gearbox according to claim 1, characterised in that: still include hydraulic system, hydraulic system is used for turning to the quick-witted braking, hydraulic system includes the engine output duplex pump, one side of engine output duplex pump is connected with main constant pressure valve, main constant pressure valve connects and controls respectively has steering valve, right brake hydro-cylinder and left brake hydro-cylinder, right side brake hydro-cylinder with be equipped with the radiator between the left side brake hydro-cylinder, the radiator is located one side of steering valve, one side of engine output duplex pump is connected with the filter, main constant pressure valve with be equipped with cyclone between the engine output duplex pump.
3. A transmission system for a tracked vehicle automatic gearbox according to claim 2, characterised in that: an engine oil temperature adjusting valve is arranged between the right brake oil cylinder and the main constant pressure valve, one end of the engine oil temperature adjusting valve is communicated with the right brake oil cylinder, and the other end of the engine oil temperature adjusting valve is communicated with the radiator.
4. A transmission system for a tracked vehicle automatic gearbox according to claim 3, characterised in that: still include foot arresting gear and direction machine, foot arresting gear with the direction machine is located one side of shaft coupling, foot arresting gear control right brake hydro-cylinder with left brake hydro-cylinder, the direction machine passes through the steering column control hydraulic system's steering valve.
5. A transmission system for a tracked vehicle automatic gearbox according to claim 1, characterised in that: a transmission shaft is rotatably arranged on the inner wall of one side of the working space, which is far away from the driving shaft, the transmission shaft penetrates through the transmission box, and the structure of one end, which is positioned outside the transmission box, of the transmission shaft is the same as that of one end, which is positioned outside the transmission box, of the driving shaft; and one end of the transmission shaft, which is positioned in the working space, is provided with a control mechanism for transmitting the power of the driving shaft to the transmission shaft.
6. A transmission system for a tracked vehicle automatic gearbox according to claim 5, characterised in that: control mechanism includes the telescopic shaft, the telescopic shaft is extending structure, the telescopic shaft is by its flexible of hydraulic system control, the one end of telescopic shaft with workspace one side inner wall rotates the connection, fixed drive gear and the control gear of being equipped with on the telescopic shaft, the meshing of one side of drive gear has drive gear, drive gear is fixed to be set up in the drive shaft, one side of control gear is equipped with reversing gear, reversing gear is fixed to be set up on the transmission shaft, one side of reversing gear is equipped with the special-shaped gear, the special-shaped gear with transmission shaft fixed connection.
7. A transmission system for a tracked vehicle automatic gearbox according to claim 5, characterised in that: the control mechanism comprises a telescopic shaft, the telescopic shaft is rotatably arranged in a sleeve, an electric cylinder is arranged in the sleeve, and the electric cylinder controls the telescopic shaft to stretch; a transmission gear and a control gear are fixedly arranged on the telescopic shaft, one side of the transmission gear is meshed with a driving gear, the driving gear is fixedly arranged on a driving shaft, one side of the control gear is provided with a reversing gear, the reversing gear is fixedly arranged on a transmission shaft, one side of the reversing gear is provided with a special-shaped gear, and the special-shaped gear is fixedly connected with the transmission shaft; the telescopic one side is equipped with the stopper, the sleeve with the stopper rotates to be connected, one side of stopper is equipped with the control pneumatic cylinder, the control pneumatic cylinder with one side inner wall fixed connection of working space, the control pneumatic cylinder control has control piston, the stopper with control piston fixed connection.
8. A drivetrain for a tracked vehicle automatic gearbox according to claim 7, characterized in that: the special-shaped gear is of an inner gear ring structure, and the control gear is meshed with the reversing gear or the special-shaped gear.
9. A transmission system for a tracked vehicle automatic gearbox according to claim 8, characterised in that: the fixed installed part that is equipped with on the stopper, the fixed slide bar that is equipped with on the installed part, the slip is equipped with the rack on the slide bar, one side meshing of rack has the ring gear, the ring gear with sleeve fixed connection, the fixed installation piece that is equipped with in one side of rack, one side of control pneumatic cylinder is equipped with the connecting block, the connecting block with be equipped with the transfer line between the installation piece, the both ends of transfer line respectively with the connecting block with the installation piece is articulated.
10. A transmission system for a tracked vehicle automatic gearbox according to claim 9, characterised in that: and a one-way bearing is arranged at the joint of the sleeve and the telescopic shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614665.6A CN115013483B (en) | 2022-05-30 | 2022-05-30 | Transmission system for automatic gearbox of crawler-type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210614665.6A CN115013483B (en) | 2022-05-30 | 2022-05-30 | Transmission system for automatic gearbox of crawler-type vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115013483A true CN115013483A (en) | 2022-09-06 |
| CN115013483B CN115013483B (en) | 2023-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210614665.6A Active CN115013483B (en) | 2022-05-30 | 2022-05-30 | Transmission system for automatic gearbox of crawler-type vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115013483B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276527A (en) * | 2023-05-15 | 2023-06-23 | 四川飞亚动力科技股份有限公司 | Engine crankshaft polishing equipment |
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|---|---|---|---|---|
| FR1019007A (en) * | 1950-05-24 | 1953-01-15 | Further training in agricultural tractors | |
| JPH07179132A (en) * | 1993-12-24 | 1995-07-18 | Iseki & Co Ltd | Device for changing height of tractor |
| DE19646344A1 (en) * | 1996-11-09 | 1998-05-14 | Zahnradfabrik Friedrichshafen | Transmission for tracked vehicle |
| US20160068185A1 (en) * | 2014-09-10 | 2016-03-10 | Claas Industrietechnik Gmbh | Steerable crawler track |
| CN109882571A (en) * | 2019-03-01 | 2019-06-14 | 青岛北海俊惠电子仪表有限公司 | Power transmission and tractor hoist, workover rig containing the power transmission |
| CN112690049A (en) * | 2020-12-23 | 2021-04-23 | 江苏海之诺机械装备有限公司 | No-missing cross shaft transmission soil throwing stubble cleaning rotary cultivator |
| CN113915309A (en) * | 2021-12-15 | 2022-01-11 | 易如(山东)智能科技有限公司 | Mechanical automatic stepless gearbox capable of realizing left-right forward and reverse rotation |
-
2022
- 2022-05-30 CN CN202210614665.6A patent/CN115013483B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1019007A (en) * | 1950-05-24 | 1953-01-15 | Further training in agricultural tractors | |
| JPH07179132A (en) * | 1993-12-24 | 1995-07-18 | Iseki & Co Ltd | Device for changing height of tractor |
| DE19646344A1 (en) * | 1996-11-09 | 1998-05-14 | Zahnradfabrik Friedrichshafen | Transmission for tracked vehicle |
| US20160068185A1 (en) * | 2014-09-10 | 2016-03-10 | Claas Industrietechnik Gmbh | Steerable crawler track |
| CN109882571A (en) * | 2019-03-01 | 2019-06-14 | 青岛北海俊惠电子仪表有限公司 | Power transmission and tractor hoist, workover rig containing the power transmission |
| CN112690049A (en) * | 2020-12-23 | 2021-04-23 | 江苏海之诺机械装备有限公司 | No-missing cross shaft transmission soil throwing stubble cleaning rotary cultivator |
| CN113915309A (en) * | 2021-12-15 | 2022-01-11 | 易如(山东)智能科技有限公司 | Mechanical automatic stepless gearbox capable of realizing left-right forward and reverse rotation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116276527A (en) * | 2023-05-15 | 2023-06-23 | 四川飞亚动力科技股份有限公司 | Engine crankshaft polishing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115013483B (en) | 2023-06-13 |
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