CN210566161U - Transfer case and electric transmission tire type loader - Google Patents
Transfer case and electric transmission tire type loader Download PDFInfo
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- CN210566161U CN210566161U CN201921181335.2U CN201921181335U CN210566161U CN 210566161 U CN210566161 U CN 210566161U CN 201921181335 U CN201921181335 U CN 201921181335U CN 210566161 U CN210566161 U CN 210566161U
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Abstract
The utility model discloses a transfer case and electricity drive tire formula loader belongs to the engineering machine tool field. The device comprises a box body, an input shaft and an output shaft IV are coaxial, an output shaft I and an output shaft III are coaxial, and an output shaft II and an output shaft V are coaxial; the input gear is respectively meshed with the output gear I and the output gear II, and the gear matching of the input gear, the output gear I and the output gear II is correspondingly selected according to working conditions. And a lubricating and cooling system is connected between the lower oil port and the upper oil port of the box body. The transfer case multi-power output port is connected with different hydraulic pumps and is installed in a combined mode, and the requirements of the loader for multiple functions such as shoveling, lifting, unloading, heat dissipation, lubrication and the like are met; the lubrication and cooling of the transfer case are realized through the lubrication and cooling system, and the problems of lubrication and heat dissipation of the transfer case under the multi-power output working condition are solved; the electric transmission tire type loader can meet the requirements of a hydraulic pump required by various functions of the loader by installing the transfer case.
Description
Technical Field
The utility model relates to an engineering machine tool field especially relates to a transfer case structure and use electric drive tire loader of this structure.
Background
The traditional loader mainly adopts a hydraulic transmission mode, a transmission system of the traditional loader mainly comprises an engine, a double-change system, a transmission shaft, a drive axle and the like, and an electric transmission mode gradually becomes the development trend of large engineering machinery due to the advantages of high transmission efficiency, simple structure, long service life of elements, easiness in implementation and the like.
The electric drive loader transmission mode is that the engine directly links the generator, and the generator passes through transmission shaft mechanical drive transfer case, and the generator passes through electric control program drive traction motor on the one hand, drives the wheel reduction gear, realizes the automobile body motion, and on the other hand, the axle of single hydraulic pump and the inside gear connection of transfer case, according to the hydraulic system demand, the output shaft that disposes the transfer case is power takeoff quantity promptly, satisfies the power takeoff demand of the multiple hydraulic pump of loader.
The traditional loader has no special transfer case structure, and the double-variable system outputs power to the drive axle simultaneously, so that the double-variable system can only provide a limited number of power take-off ports for a hydraulic pump and the like.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a transfer case and electric drive tire loader realizes that transfer case power takeoff mouth quantity, output torque can dispose as required, satisfies the functional requirement of electric drive tire loader.
The utility model discloses a following technical scheme realizes: a transfer case comprises a case body, wherein an input shaft, an output shaft I, an output shaft II, an output shaft III, an output shaft IV and an output shaft V are rotatably arranged on the case body; the input shaft is coaxial with the output shaft IV, the output shaft I is coaxial with the output shaft III, the output shaft II is coaxial with the output shaft V, and the output shafts III, IV and V are parallel and on the same horizontal plane; an input gear is installed on the input shaft, an output gear I is installed on the output shaft I, and an output gear II is installed on the output shaft II.
It further comprises the following steps: the input shaft, the output shaft I, the output shaft II, the output shaft III, the output shaft IV and the output shaft V are in rotary connection with the box body through tapered roller bearings.
The bottom of the box body is provided with a lower oil port, the top of the box body is provided with an upper oil port, oil is filled in the box body, and a lubricating and cooling system is connected between the lower oil port and the upper oil port; the lubricating and cooling system comprises a gear oil lubricating pump, and the gear oil lubricating pump is connected with an output shaft on the box body; an oil inlet of the gear oil lubricating pump is connected with a lower oil port of the box body, and an oil-water separator is connected with an oil outlet of the gear oil lubricating pump; the oil outlet of the oil-water separator is connected with a cooler and a control valve assembly, and the oil outlet of the cooler is connected with the control valve assembly; the oil outlet of the control valve assembly is connected to the oil inlet of the box body.
The control valve assembly comprises an overflow valve, a temperature sensor, a pressure sensor and a back pressure valve; the overflow valve is connected with the cooler in parallel, and an oil inlet of the overflow valve is communicated with an oil outlet connected with the oil-water separator; the oil outlets of the overflow valve and the cooler are communicated to the oil inlet of the box body through the back pressure valve; and the temperature sensor and the pressure sensor are connected to the oil inlet end of the backpressure valve.
An oil nozzle is arranged in the box body and is communicated with an oil inlet on the box body; high-pressure oil entering the oil nozzle is sprayed to the rotary connection positions of the input shaft, the output shaft I, the output shaft II, the output shaft III, the output shaft IV and the output shaft V and the box body through the oil nozzle.
The temperature sensor and the pressure sensor are connected with an alarm display device, and the alarm display device is positioned in the cab.
An air-oil separator is arranged at the upper part of the box body, and oil mist generated by the injection of the oil nozzle in the box body passes through the air-oil separator; the separated oil is communicated to the lower oil port of the box body, and the separated air is communicated to the outside of the box body through an air filter.
The cooler is located in an engine cold water circulation pipeline of the loader.
The box body is provided with a threaded hole and is provided with an integral welding support through threaded connection; the integral welding support is provided with a strip hole and is in threaded connection with the loader frame through the strip hole.
An electric drive tire loader comprising an engine; the engine is connected with an alternating current generator; the transfer case provides power take-off port output power for the hydraulic pump; the alternating current generator is electrically connected with the control cabinet; the control cabinet is electrically connected with four motors; the four motors are respectively connected with an independent driving wheel-side reducer.
Compared with the prior art, the beneficial effects of the utility model are that:
the transfer case multi-power output port is connected with different hydraulic pumps and is installed in a combined mode, and the requirements of the loader for multiple functions such as shoveling, lifting, unloading, heat dissipation, lubrication and the like are met; the lubrication and cooling of the transfer case are realized through the lubrication and cooling system, and the problems of lubrication and heat dissipation of the transfer case under the multi-power output working condition are solved;
the electric drive tire type loader adopts four-wheel independent drive, and the requirement of a hydraulic pump required by each function of the loader is met by installing the transfer case. The four-wheel independent driving device has the advantages of stable operation, short transmission chain, high transmission efficiency, high reliability and the like, realizes four-wheel independent driving, can solve the problems of unilateral slipping and idling, and reduces tire wear.
Drawings
FIG. 1 is a schematic structural diagram of a distribution box according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a lubrication cooling system of a power box according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second electric drive tire loader according to an embodiment of the present invention;
in the figure: 1. a box body; 2. a gear oil lubrication pump; 3. an oil-water separator; 4. a cooler; 5. a control valve assembly; 6. an overflow valve; 7. a temperature sensor; 8. a pressure sensor; 9. a back pressure valve; 12. an input shaft; 13. an output shaft I; 14. an output shaft II; 15. an output shaft III; 16. an output shaft IV; 17. an output shaft V; 18. an output gear I; 19. an input gear; 20. and an output gear II.
Detailed Description
The present invention will be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention.
Example one
Referring to the figure 1, the transfer case is characterized in that an input shaft 12, an output shaft I13, an output shaft II 14, an output shaft III 15, an output shaft IV 16 and an output shaft V17 are rotatably mounted on a case body 1 through tapered roller bearings. The input shaft 12 and the output shaft IV 16 are coaxially fixed, the output shaft I13 and the output shaft III 15 are coaxially fixed, the output shaft II 14 and the output shaft V17 are coaxially fixed, and the output shaft III 15, the output shaft IV 16 and the output shaft V17 are parallel and on the same horizontal plane. An input gear 19 is arranged on the input shaft 12, an output gear I18 is arranged on the output shaft I13, and an output gear II 20 is arranged on the output shaft II 14. The input gear 19 is meshed with the output gear I18 and the output gear II 20 respectively, and the gear train proportion of the input gear 19, the gear train proportion of the output gear I18 and the gear train proportion of the output gear II 20 are the same or different according to working conditions.
In this embodiment, there are 1 input shaft, input gear meshing output gear I, output gear I can be as input gear, meshes other output gear … …, finally realizes 1 input port, 2N +1 delivery outlets, and according to the gear train ratio difference, realizes the specific proportion distribution of output torque.
The input shaft 12 of the transfer case is connected with a transmission shaft of the generator through a flange, a plurality of output shafts can be hydraulic pumps such as a working pump, a steering pump, a transfer case gear oil circulating pump, an independent heat dissipation pump and a booster pump which are arranged on the electric drive loader, and different types of hydraulic pumps can be configured at each power take-off port by freely adjusting the layout of the whole vehicle. The transfer case can be connected with a limited number of hydraulic pumps in series at the same power takeoff, and the functional requirements of the whole machine are met.
The box body 1 adopts an integral welding type structure, the manufacturing process is simple, and the bearing is convenient to disassemble and assemble. An oil level observation hole is reserved on the box body 1 and used for installing an oil level display. A threaded hole is reserved on the box body 1, and the box body 1 is provided with an integral welding support through threaded connection; the integral welding support is provided with a strip hole and is in threaded connection with the frame of the loader through the strip hole, so that the position of the box body 1 can be adjusted up and down, and the installation is convenient.
This transfer case has realized many power take off operating mode, and in order to solve the lubrication, the heat dissipation problem of transfer case under many power take off operating mode, a lubrication and cooling system is connected to the transfer case, makes the interior oil of box circulate between the gear and cooler and flows, plays lubricated and refrigerated purpose, and is specific:
the bottom of the box body 1 is provided with a lower oil port, the top of the box body 1 is provided with an upper oil port, oil is filled in the box body 1, and the lubricating and cooling system is connected between the lower oil port and the upper oil port;
referring to fig. 2, the lubrication cooling system includes a gear oil lubrication pump 2, and the gear oil lubrication pump is an impeller type constant delivery pump. The gear oil lubrication pump 2 is connected with an output shaft of a non-driving end on the case body 1, and the transfer case can drive the gear oil lubrication pump 2 to operate when working. An oil inlet of the gear oil lubricating pump 2 is connected with an oil outlet of the box body 1, absorbs oil from the box body 1, and then is pressurized by the gear oil lubricating pump 2 and then conveyed to the oil-water separator 3. An oil outlet of the oil-water separator 3 is connected with a cooler 4 and a control valve assembly 5, and an oil outlet of the cooler 4 is connected with the control valve assembly 5; the oil outlet of the control valve assembly 5 is connected to the upper oil port of the box body 1. The cooler 4 is positioned in a cold water circulating pipeline of an engine of the loader to cool oil, and can also be used for air cooling through a fan. The control end of the control valve component 5 is connected with the oil outlet of the oil-water separator 3, and the oil outlet of the control valve component 5 is connected to the upper oil port of the box body 1.
The control valve assembly 5 includes a relief valve 6, a temperature sensor 7, a pressure sensor 8, and a back pressure valve 9. The overflow valve 6 is connected with the cooler 4 in parallel, and an oil inlet of the overflow valve 6 is communicated with an oil outlet of the connecting oil-water separator 3. Oil outlets of the overflow valve 6 and the cooler 4 are communicated to an upper oil port of the box body 1 through a back pressure valve 9. The temperature sensor 7 and the pressure sensor 8 are connected to the oil inlet end of the backpressure valve 9. The temperature sensor 7 and the pressure sensor 8 are connected with an alarm display device, if the pressure and the temperature of the transfer case exceed the limit conditions, the temperature sensor 7 and the pressure sensor 8 can give out an alarm and give an alarm, and the alarm are directly displayed on a cab screen, so that the driver can conveniently recognize the alarm.
An oil nozzle is arranged in the box body 1 and is communicated with an oil opening on the box body 1; the high-pressure oil entering the oil nozzle is sprayed to the rotary connection positions of the input shaft 12, the output shaft I13, the output shaft II 14, the output shaft III 15, the output shaft IV 16, the output shaft V17 and the box body 1 through the oil nozzle. An air-oil separator is arranged at the upper part of the box body 1, and oil mist generated by the injection of an oil nozzle in the box body passes through the air-oil separator; the fluid mouth under the fluid intercommunication box 1 after the separation, the air after the separation communicates to the box 1 outside through air cleaner, effectively prevents air pollution and the interior fluid pollution of box.
The working process is as follows:
the gear oil lubricating pump 2 pumps oil out of a lower oil port at the bottom of the transfer case body 1, enters the oil-water separator 3 for filtering, and then flows into the control valve assembly 5;
when the oil flow passing through the control valve 5 exceeds a certain limit value, the pressure in the valve 5 rises, and the overflow valve 6 detects the pressure and releases the excess pressure to an oil return hole in the overflow valve 6; the oil feeding port on the upper part of the transfer case is provided with a back pressure valve 9 which can effectively prevent oil from flowing back. Most of the oil liquid flows to the cooler 4, and the oil liquid cooled by the cooler 4 returns to the component 5;
the pressurized oil flows to an oil nozzle at the top of the transfer case, is sprayed by the oil nozzle to effectively lubricate and cool each tapered roller bearing, and returns to an oil collecting tank at the bottom of the gear case after flowing through the bearing, so that the whole gear lubricating oil circulation is completed.
Example two
Referring to fig. 3, an electric drive tire loader is provided, which is based on the first embodiment;
the engine B1 is connected with an alternating current generator B2, the rotating shaft of an alternating current generator B2 is connected with a transfer case B3, and the transfer case B3 provides power take-off output power for a hydraulic pump B4. The alternating current generator B2 is electrically connected with a control cabinet B5, the control cabinet B5 is electrically connected with four wheel-side driving motors B6, and the four motors B6 are respectively connected with a wheel-side speed reducer.
The electric transmission tire type loader is driven by four wheels independently, and realizes an 'AC-DC-AC' control mode. The engine B1 provides power, on one hand, the power is transmitted to the transfer case B3 through the alternating current generator B2, and the transfer case provides a power take-off port for the hydraulic pump B4 to output power. On the other hand, the control cabinet B5 rectifies and inverts the alternating current generated by the alternating current generator B2 and supplies the rectified and inverted alternating current to the wheel-side driving motor B6, and the motor B6 drives four wheel-side reducers, so that the functions of four-wheel independent driving, differential steering and the like of the electric drive loader are finally realized.
Claims (10)
1. A transfer case comprises a case body (1), and is characterized in that: an input shaft (12), an output shaft I (13), an output shaft II (14), an output shaft III (15), an output shaft IV (16) and an output shaft V (17) are rotatably arranged on the box body (1); the input shaft (12) and the output shaft IV (16) are coaxial, the output shaft I (13) and the output shaft III (15) are coaxial, the output shaft II (14) and the output shaft V (17) are coaxial, and the output shafts III (15), IV (16) and V (17) are parallel and on the same horizontal plane; an input gear (19) is mounted on the input shaft (12), an output gear I (18) is mounted on the output shaft I (13), and an output gear II (20) is mounted on the output shaft II (14); the input gear (19) is meshed with the output gear I (18) and the output gear II (20) respectively.
2. A transfer case according to claim 1, wherein: the input shaft (12), the output shaft I (13), the output shaft II (14), the output shaft III (15), the output shaft IV (16) and the output shaft V (17) are in rotary connection with the box body (1) through tapered roller bearings.
3. A transfer case according to claim 1 or 2, wherein: a lower oil port is formed in the bottom of the box body (1), an upper oil port is formed in the top of the box body (1), oil is filled in the box body (1), and a lubricating and cooling system is connected between the lower oil port and the upper oil port;
the lubricating and cooling system comprises a gear oil lubricating pump (2), and the gear oil lubricating pump (2) is connected with an output shaft on the box body (1); an oil inlet of the gear oil lubricating pump (2) is connected with an oil outlet of the box body (1), and an oil outlet of the gear oil lubricating pump (2) is connected with an oil-water separator (3); an oil outlet of the oil-water separator (3) is connected with a cooler (4) and a control valve component (5), and an oil outlet of the cooler (4) is connected with the control valve component (5); the oil outlet of the control valve assembly (5) is connected to the upper oil port of the box body (1).
4. A transfer case according to claim 3, wherein: the control valve assembly (5) comprises an overflow valve (6), a temperature sensor (7), a pressure sensor (8) and a backpressure valve (9); the overflow valve (6) is connected with the cooler (4) in parallel, and an oil inlet of the overflow valve (6) is communicated with an oil outlet connected with the oil-water separator (3); oil outlets of the overflow valve (6) and the cooler (4) are communicated to an upper oil port of the box body (1) through the back pressure valve (9); and the temperature sensor (7) and the pressure sensor (8) are connected to the oil inlet end of the backpressure valve (9).
5. A transfer case according to claim 4, wherein: an oil nozzle is arranged in the box body (1) and is communicated with an oil opening of the box body (1); high-pressure oil entering the oil nozzle is sprayed to the rotary connection positions of the input shaft (12), the output shaft I (13), the output shaft II (14), the output shaft III (15), the output shaft IV (16) and the output shaft V (17) and the box body (1) through the oil nozzle.
6. A transfer case according to claim 4, wherein: and the temperature sensor (7) and the pressure sensor (8) are connected with an alarm display device, and the alarm display device is positioned in a cab.
7. A transfer case according to claim 5, wherein: an air-oil liquid separator is arranged at the upper part of the box body (1), and oil mist generated by the injection of an oil nozzle in the box body passes through the air-oil liquid separator; the separated oil is communicated to an oil outlet of the box body (1), and the separated air is communicated to the outside of the box body (1) through an air filter.
8. A transfer case according to claim 3, wherein: the cooler (4) is positioned in an engine cold water circulating pipeline of the loader.
9. A transfer case according to claim 1, wherein: a threaded hole is reserved in the box body (1), and the box body (1) is provided with an integral welding support through threaded connection; the integral welding support is provided with a strip hole and is in threaded connection with the loader frame through the strip hole.
10. An electric drive tire loader employing the transfer case (B3) of any one of claims 1 to 8, characterized in that: comprises an engine (B1); an alternator (B2) is connected to the engine (B1); the rotating shaft of the alternating current generator (B2) is connected with the transfer case (B3), and the transfer case (B3) provides power take-off output power for the hydraulic pump (B4); the alternating current generator (B2) is electrically connected with a control cabinet (B5); the control cabinet (B5) is electrically connected with four motors (B6); the four motors (B6) are respectively connected with an independent driving wheel-side speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181335.2U CN210566161U (en) | 2019-07-25 | 2019-07-25 | Transfer case and electric transmission tire type loader |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181335.2U CN210566161U (en) | 2019-07-25 | 2019-07-25 | Transfer case and electric transmission tire type loader |
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| CN210566161U true CN210566161U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921181335.2U Active CN210566161U (en) | 2019-07-25 | 2019-07-25 | Transfer case and electric transmission tire type loader |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296208A (en) * | 2019-07-25 | 2019-10-01 | 徐工集团工程机械股份有限公司科技分公司 | Transfer case and electric transmission wheeled loader |
| CN111976448A (en) * | 2020-08-28 | 2020-11-24 | 北京泓慧国际能源技术发展有限公司 | Electric drive loader power system, power control method and electric drive loader |
| CN112049922A (en) * | 2020-08-17 | 2020-12-08 | 东风越野车有限公司 | Oil cooling control device for transfer case of military vehicle |
-
2019
- 2019-07-25 CN CN201921181335.2U patent/CN210566161U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296208A (en) * | 2019-07-25 | 2019-10-01 | 徐工集团工程机械股份有限公司科技分公司 | Transfer case and electric transmission wheeled loader |
| CN112049922A (en) * | 2020-08-17 | 2020-12-08 | 东风越野车有限公司 | Oil cooling control device for transfer case of military vehicle |
| CN111976448A (en) * | 2020-08-28 | 2020-11-24 | 北京泓慧国际能源技术发展有限公司 | Electric drive loader power system, power control method and electric drive loader |
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