CN114251444A - Electric control gearbox, control system thereof and digging and loading machine thereof - Google Patents
Electric control gearbox, control system thereof and digging and loading machine thereof Download PDFInfo
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- CN114251444A CN114251444A CN202111547325.8A CN202111547325A CN114251444A CN 114251444 A CN114251444 A CN 114251444A CN 202111547325 A CN202111547325 A CN 202111547325A CN 114251444 A CN114251444 A CN 114251444A
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses an electric control gearbox, a control system thereof and a digging and loading machine thereof in the technical field of engineering machinery, which are convenient for improving the survival rate and the processing efficiency of a box body of the electric control gearbox and reducing the manufacturing cost; the complex oil circuit on the box body is simplified, and the service life of the gearbox is prolonged. The stability and the maintenance convenience of the electric control system are improved, and the space arrangement and the light weight design of the whole machine are facilitated. The clutch comprises a box body assembly, an electric control operating valve assembly and a full single-pack clutch assembly; a cavity for mounting the full single-pack clutch assembly is arranged in the box body assembly; the full single-pack clutch assembly comprises a plurality of single-pack clutches; the electric control operating valve assembly is arranged on one side of the box body assembly; and one side of the electric control operating valve assembly is provided with an upper/lower integrated valve assembly which is detachably connected.
Description
Technical Field
The invention relates to an electric control gearbox, a control system thereof and a digging and loading machine thereof, belonging to the technical field of engineering machinery.
Background
The digging and loading machine is a small multifunctional engineering machine, is flexible to use, and is widely applied to earthwork, municipal administration, garden and other projects. As one of important transmission parts of the digging and loading machine, the overall appearance layout, the control mode and the structural composition of the electric control gearbox play a vital role in the space size, the control quality and the working performance of the whole machine. The existing electric control gearbox body has a complex structure; the processing difficulty is high; the integral distribution is not beneficial to the diagnosis and troubleshooting of faults, once the oil way of the electric control gearbox is in trouble, the whole box body needs to be replaced, the service cost is high, and the cost is high. The existing assembly process is complex and high in cost, the roughness and the axiality of related parts are difficult to guarantee, and the service life of the electric control gearbox is not prolonged favorably.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides the electric control gearbox, the control system thereof and the digging and loading machine thereof, improves the survival rate and the processing efficiency of the box body of the electric control gearbox, and reduces the manufacturing cost; the complex oil circuit on the box body is simplified, the stability of the electric control system is improved, the maintenance convenience is good, and the service difficulty and the cost are reduced; the deflection deformation of the clutch shaft is solved, and the service life of the gearbox is prolonged; the axial size of the gearbox is reduced, and the space arrangement and the light weight design of the whole gearbox are facilitated.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
on one hand, the invention provides an electric control gearbox, which comprises a box body assembly, an electric control operating valve assembly and a full single-pack clutch assembly; a cavity for mounting the full single-pack clutch assembly is arranged in the box body assembly; the full single-pack clutch assembly comprises a plurality of single-pack clutches;
the electric control operating valve assembly is arranged on one side of the box body assembly; and one side of the electric control operating valve assembly is provided with an upper/lower integrated valve assembly which is detachably connected.
Furthermore, a first electromagnetic valve and a second electromagnetic valve are arranged on the outer side of the upper/lower integrated valve assembly; the screw is connected with the upper/lower integrated valve through a lower gasket of the first/second electromagnetic valve; and a U-shaped blocking cover is arranged on the outer side of the first/second electromagnetic valve.
Further, the first electromagnetic valve comprises a first two-position four-way electromagnetic valve and a first two-position five-way electromagnetic valve; the first two-position five-way electromagnetic valve is arranged between the two first two-position four-way electromagnetic valves; the second solenoid valve comprises a second two-position four-way solenoid valve, a second two-position five-way solenoid valve, a second two-position four-way solenoid valve and a second two-position three-way solenoid valve in sequence from top to bottom.
Furthermore, a plurality of gears with different sizes are arranged in the single-pack clutch in the same circle center and are used for transmitting torque.
Further, the total single-pack clutch assembly is provided with 7 single-pack clutches, and the 7 single-pack clutches comprise a CF single-pack clutch, an N/CR single-pack clutch, a KF single-pack clutch, a C1 single-pack clutch, a C2/O single-pack clutch, a C3 single-pack clutch and an FA single-pack clutch; the CF single-pack clutch and the KF single-pack clutch are respectively connected with the first electromagnetic valve through external oil-way hoses; the C1 single-pack clutch and the FA single-pack clutch are respectively connected with the second electromagnetic valve through external oil-way hoses; and the N/CR single-pack clutch, the C2/O single-pack clutch and the C3 single-pack clutch are respectively communicated with corresponding oil inlet holes on the box body assembly through an internal oil circuit of the first/second electromagnetic valve body.
Further, the box body assembly comprises a secondary shell assembly; an external combination valve is arranged on one side of a main oil port surface on the auxiliary shell assembly; and a filter assembly is arranged on the outer side of the external combination valve.
On the other hand, the invention provides an electric control gearbox control system, which comprises an integrated control system, an electric control handle, a control box, an external host and any one of the electric control gearboxes;
the control box is connected with the electric control handle and is used for controlling the signal output of the gear instruction;
the control box is connected with the upper integrated valve assembly, and the upper integrated valve assembly receives a working instruction output by the control box, drives the CF single-pack clutch, the N/CR single-pack clutch and the KF single-pack clutch, and realizes forward and backward movement and high-speed gear shifting of the electric control gearbox;
the control box is connected with the lower integrated valve assembly, and the lower integrated valve assembly receives a working instruction output by the control box, drives the C1 single-pack clutch, the C2/O single-pack clutch and the C3 single-pack clutch, and realizes speed gear torque output of the electric control gearbox; the FA single-pack clutch is driven to be connected/disconnected, and the four-drive/two-drive driving automatic switching of the electric control gearbox is realized;
the control box is connected with the external host interface and used for receiving power signals and communication instructions of the external host.
Further, the integrated control system comprises a TCU control unit for controlling all functions of the input, output and driving modules of the whole integrated control system.
Compared with the prior art, the invention has the following beneficial effects:
according to the electric control gearbox provided by the invention, the upper integrated valve assembly and the lower integrated valve assembly are detachably connected, so that the survival rate and the processing efficiency of the gearbox body are improved, and the manufacturing cost is reduced; the single-pack clutch solves the problem of deflection deformation generated in the operation process of the traditional double-pack clutch, and prolongs the service life of the gearbox; compared with the traditional double-pack clutch, the single-pack clutch has shorter shaft distance, effectively reduces the axial size of the gearbox, and is convenient for the spatial arrangement and the lightweight design of the whole machine.
Drawings
Fig. 1 is a schematic diagram of an electrically controlled transmission:
FIG. 2 is a schematic diagram of the upper integrated valve assembly of FIG. 1:
FIG. 3 is a schematic view of the lower integrated valve assembly of FIG. 1:
FIG. 4 is a schematic diagram of an integrated control system:
FIG. 5 is a schematic cross-sectional view of an all one-pack clutch installation position;
FIG. 6 is a schematic view of the installation position of the full single-pack clutch of the right half cavity;
FIG. 7 is a schematic view of the left half cavity in a fully single clutch installation position;
in the figure: 1. an electrically controlled gearbox; 2. an electrically controlled pilot valve; 3. a cavity; 4. an electric control handle; 5. a control box; 6. connecting a host externally; 7. an external combination valve; 8. a filter assembly; 9. an external oil-way hose; 10. a box body assembly; 11. An upper integration valve assembly; 12. a lower integration valve assembly; 13. A U-shaped shield; 14. a main housing; 15. a sub-housing; 16. a torque converter assembly; 17. a full single pack clutch assembly; 18. a CF single pack clutch; 19. an N/CR single pack clutch; 20. a KF single pack clutch; 21. c1 one pack clutch; 22. C2/O single pack clutch; 23. c3 one pack clutch; 24. an FA single pack clutch; 25. A first solenoid valve; 26. a second solenoid valve; 27. a first joint; 28. a second joint; 29. a third joint; 30. a transition harness A; 31. driving the wire harness B; 32. controlling the wire harness C; 33. a linker b 1; 34. a linker b 2; 35. a linker b 3; 36. a linker b 4; 37. a linker b 5; 38. a linker b 6; 39. a linker b 7; 40. a linker b 8; 41. a linker b 9; 42. a four-wheel drive change-over switch; 43. gear a 1; 44. gear a 2; 45. gear a 3; 46. gear b 1; 47. gear b 2; 48. gear c 1; 49. gear c 2; 50. gear d 1; 51. gear d 2; 52. gear e 1; 53. gear e 2; 54. gear e 3; 55. gear f 1; 56. gear f 2; 57. gear g 1; 251. a first two-position four-way solenoid valve; 252. a first two-position five-way solenoid valve; 261. A second two-position four-way solenoid valve; 262. a second two-position five-way electromagnet; 263. and a second two-position three-way electromagnetic valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
referring to fig. 1, a schematic diagram of an electrically controlled transmission 1 of an embodiment is shown, where the electrically controlled transmission 1 includes a case assembly 10, an electrically controlled pilot valve 2 assembly, and an all-single-pack clutch assembly 17. The electric control operating valve 2 assembly is arranged on one side of the box body. The full single-pack clutch assembly 17 is a plurality of single-pack clutches. The box assembly 10 is divided into a main shell 14 assembly, an auxiliary shell 15 assembly and a torque converter assembly 16, and a cavity 3 for mounting a full single clutch assembly 17 is arranged in the box assembly 10. Preferably, the left/right cavities 3 are respectively arranged in the main shell 14 assembly and the auxiliary shell 15 assembly and are fixed through bolts. The conical bearings at two ends of each single-pack clutch axis are correspondingly arranged and fixed on bearing mounting holes in the main shell 14 assembly and the auxiliary shell 15 assembly respectively. After the installation is finished, the box closing, the axial adjustment and the press mounting are carried out to form a gear pair system for transmitting torque. An upper integrated valve assembly 11 and a lower integrated valve assembly 12 which are detachably connected are arranged on one side of the electric control operating valve 2 assembly; the upper integrated valve assembly 11 and the lower integrated valve assembly 12 are arranged on the electric control operating valve 2 assembly from top to bottom.
Specifically, as shown in fig. 2 and 3, a first electromagnetic valve 25 is arranged on the upper integrated valve assembly 11, and a second electromagnetic valve 26 is arranged on the lower integrated valve assembly 12; the bottoms of the first electromagnetic valve 25 and the second electromagnetic valve 26 are provided with lower gaskets, and screws are used for fixing the first electromagnetic valve 25 and the second electromagnetic valve 26 on the upper integrated valve assembly 11 and the lower integrated valve assembly 12 through the respective lower gaskets. The U-shaped shielding cover 13 is disposed on the outer side of the first solenoid valve 25 and the second solenoid valve 26, so as to effectively protect the first solenoid valve 25 of the upper integrated valve assembly 11, the second solenoid valve 26 of the lower integrated valve assembly 12, and other relevant components from being damaged. The first solenoid valve 25 includes two first two-position four-way solenoid valves 251 and a first two-position five-way solenoid valve 252, and the first two-position five-way solenoid valve 252 is disposed between the two first two-position four-way solenoid valves 251; the second solenoid valve 26 includes a second two-position four-way solenoid valve 261, a second two-position five-way solenoid valve 262, a second two-position four-way solenoid valve 261, and a second two-position three-way solenoid valve 263 in this order from top to bottom. The arrangement aims to reduce the processing difficulty of the oil circuit of the box body and avoid the processing error rate based on the optimization and simplification of the trend of the oil circuit of each gear, and secondly, the arrangement aims to ensure that the multiple gears which advance and retreat maximally accord with the control operation logical relation of the whole machine.
Specifically, as shown in fig. 5, a plurality of gears with different sizes are arranged in each single-pack clutch at the same center for transmitting torque. The gears are arranged on the shaft in the same circle center, so that the number of single-pack clutches can be reduced, the requirement of compact structural space of the electric cabinet is met, and the cost can be reduced; and the arrangement of the large pinion and the small pinion on the same circle center can realize the difference of speed ratios of different gears, and meet the operation requirements of the whole machine under various working conditions.
Specifically, as shown in fig. 5, the fully-wrapped clutch assembly of the electrically controlled transmission 1 may be provided with seven single-wrapped clutches, where the seven single-wrapped clutches are respectively: the system comprises a CF single-packet clutch 18, an N/CR single-packet clutch 19, a KF single-packet clutch 20, a C1 single-packet clutch 21, a C2/O single-packet clutch 22, a C3 single-packet clutch 23 and an FA single-packet clutch 24. The N/CR single-pack clutch 19 is connected with the torque converter assembly 16 through a spline, and the shaft of the N/CR single-pack clutch 19 passes through a bearing hole of the auxiliary shell 15; the shaft of the C2/O single-pack clutch 22 passes through the main shell 14 to realize power output; the shaft of the FA single-pack clutch 24 passes through a bearing hole of the auxiliary shell 15 to realize power front output. The C1 single-pack clutch 18 and the FA single-pack clutch 24 are respectively connected with the second electromagnetic valve 26 through the external oil-way hoses 9, and the two ends of each external oil-way hose 9 are connected and fastened through the perforated bolts to realize the on-off of the oil way. The N/CR single-pack clutch 19, the C2/O single-pack clutch 22 and the C3 single-pack clutch 23 are respectively communicated with an oil inlet on the box body assembly 10 through internal oil passages of a valve body of the first electromagnetic valve 25 and a valve body of the second electromagnetic valve 26.
The CF single pack clutch 18 contains: gear a143, gear a24444, gear a 345; the N/CR single pack clutch 19 comprises: gear b146, gear b 247; the KF one-pack clutch 20 includes: gear c148, gear c 249; the C1 one-pack clutch 21 includes: gear d150, gear d 251; the C2/O single pack clutch 22 includes: gear e152, gear e253, gear e 354; the C3 one-pack clutch 23 includes: gear f155, gear f 256; the FA single-pack clutch 24 includes: gear g 157.
Each gear transmission connection mode:
the gear b146 of the N/CR single-pack clutch 19 is in transmission connection with the gear c148 of the KF single-pack clutch 20; the gear b247 of the N/CR single-pack clutch 19 is in transmission connection with the gear a143 of the CF single-pack clutch 18; the gear a244 and the gear a345 of the CF single-pack clutch 18 are in transmission connection with the gear c148 and the gear c249 of the KF single-pack clutch 20; the gear C148 of the KF single-pack clutch 20 is in transmission connection with the gear d150 of the C1 single-pack clutch 21; the gear d150 and the gear d251 of the C1 single packet clutch 21 are in transmission connection with the gear e152 and the gear e253 of the C2/O single packet clutch 22; the gear e152 and the gear e354 of the C2/O single-packet clutch 22 are in transmission connection with the gear f155 and the gear f256 of the C3 single-packet clutch 23; gear e354 of the C2/O single-pack clutch 22 is in driving connection with gear g157 of the FA single-pack clutch 24.
Specifically, the electrically controlled operating valve 2 assembly is connected with a part of external oil path hoses 9 (which part is specified in detail), so that part of gear oil paths are communicated with the box body assembly 10 through the external oil path hoses 9; an auxiliary shell 15 assembly is arranged on the box body assembly 10, an external combination valve 7 is arranged on one side of a main oil port surface of the auxiliary shell 15 assembly, and a filter assembly 8 is arranged on the outer side of the external combination valve 7. The oil pressure of the upper integrated valve assembly 11 and the oil pressure of the lower integrated valve assembly 12 are controlled by the external combination valve 7, and the external combination valve 7 and the filter assembly 8 play a role in regulating the system pressure of the electric control gearbox 1 and the pressure of the torque converter.
Example 2:
referring to fig. 4, a schematic structural diagram of a control system of the present invention is shown, including an integrated control system, an electric control handle 4, a control box 5, an external host 6, and an electric control gearbox 1 including embodiment 1.
The first connector 27 on the control box 5 is connected with the connector of the electric control handle 4 through a transition wiring harness A30 for controlling the signal output of the gear command. And the control box 5 is connected with the upper integration valve assembly 11 and is used for receiving a working instruction output by an integration system, driving the CF single-pack clutch 18, the N/CR single-pack clutch 19 and the KF single-pack clutch 20 and realizing the forward and backward movement and high-speed gear shifting of the electric control gearbox 1.
The second connector 28 of the control box 5 is connected to one end of the driving harness B31, and a plurality of connectors can be provided at the other end of the driving harness B31 for outputting operation commands and controlling corresponding components. The driving wire harness B31 is provided with a four-wheel-drive change-over switch 42, which plays a role in outputting a working instruction of the control box 5 and controlling the working states of different electromagnetic valves on the electrically controlled operation valve 2. Preferably, the driving wire B31 is provided with 9 joints, and as shown in fig. 4, the nine joints are respectively a joint B133, a joint B234, a joint B335, a joint B436, a joint B537, a joint B638, a joint B739, a joint B840, and a joint B941 from top to bottom; as shown in fig. 1, 2, and 3, the nine joints are directly connected to the interfaces of the first solenoid 25 and the second solenoid 26 arranged in the upper integrated valve assembly 11 and the lower integrated valve assembly 12 from top to bottom, and no cross is generated. That is, the joints b133, b234, and b335 arranged from top to bottom are directly connected to the interfaces of the first two-position four-way solenoid valve 251, the first two-position five-way solenoid valve 252, and the first two-position four-way solenoid valve 251 arranged from top to bottom on the upper integrated valve assembly 11, so as to receive the operating instruction of the integrated control system, drive the engagement and disengagement of the torque transmission mechanisms of the CF single-pack clutch 18, the N/CR single-pack clutch 19, and the KF single-pack clutch 20 in the full single-pack clutch assembly 17, and perform the forward, reverse, and high-speed gear shifting functions of the electrically controlled transmission 1. The joints b436, b537, b638 arranged from top to bottom are directly butted with the interfaces of the second two-position four-way solenoid valve 261, the second two-position five-way solenoid valve 262 and the second two-position four-way solenoid valve 261 arranged from top to bottom of the lower integrated valve assembly 12, so as to receive the working instruction of the integrated control system, drive the engagement and disengagement of the torque transmission mechanisms of the C1 single-pack clutch 21, the C2/O single-pack clutch 22 and the C3 single-pack clutch 23 in the full single-pack clutch assembly 17, and play a role in outputting the speed gear torque of the electrically controlled transmission case 1. The connector b739 is butted with a second two-position three-way electromagnetic valve 263 interface arranged at the last position from top to bottom in the lower integrated valve assembly 12, and is used for driving the FA single-pack clutch 24 to be disengaged so as to realize the four-drive and two-drive driving automatic switching functions of the electric control gearbox 1. The joint b840 is connected with a parking brake solenoid valve interface, and is used for realizing the connection and disconnection of a pressure oil source oil path of an electric control gearbox system under the control of a TCU (transmission control unit) based on the requirements of emergency and parking brake of the whole machine, so that the brake safety performance of the whole machine is improved; the joint b941 is connected with the electromagnetic valve interface of the differential lock, and is used for realizing the connection and disconnection of a pressure oil source oil circuit of an electric control gearbox system under the control of the TCU unit based on the steering requirement of a muddy and bumpy road surface of the whole machine, and improving the safe passing capacity and the comfort of the steering of the whole machine under the specific working condition.
The third joint 29 of the control box 5 is connected with one end of a control wiring harness C32, and the other end of the control wiring harness C32 is connected with an interface of the external host computer 6, so that the functions of receiving an electric signal of a power supply of the external host computer 6 and receiving a communication command can be achieved.
The integrated control system integrates various logic functions, realizes the interaction function based on ergonomics through the action of the TCU control unit, comprises the functions of electro-hydraulic gear shifting, neutral gear starting protection, power cut-off, KD function, four-two drive automatic switching mode, parking brake, differential lock and the like, and has the advantages of centralized functions, fault removal and convenient maintenance.
Example 3:
the embodiment provides a digging and loading machine, which comprises an electric control gearbox control system provided with the electric control gearbox control system in the embodiment 2. Because the excavator provided by this embodiment adopts the electric control transmission control system described in embodiment two, the technical effects described in embodiment two can be at least produced, and further description is omitted here.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An electric control gearbox is characterized by comprising a box body assembly, an electric control operating valve assembly and a full single-pack clutch assembly; a cavity for mounting the full single-pack clutch assembly is arranged in the box body assembly; the full single-pack clutch assembly comprises a plurality of single-pack clutches;
the electric control operating valve assembly is arranged on one side of the box body assembly; and one side of the electric control operating valve assembly is provided with an upper/lower integrated valve assembly which is detachably connected.
2. The electrically controlled transmission according to claim 1, wherein a first/second solenoid valve is provided on an outer side of said up/down integrated valve assembly; the screw is connected with the upper/lower integrated valve through a lower gasket of the first/second electromagnetic valve; and a U-shaped blocking cover is arranged on the outer side of the first/second electromagnetic valve.
3. The electrically controlled transmission according to claim 2, wherein said first solenoid valve comprises a first two-position, four-way solenoid valve and a first two-position, five-way solenoid valve; the first two-position five-way electromagnetic valve is arranged between the two first two-position four-way electromagnetic valves; the second solenoid valve comprises a second two-position four-way solenoid valve, a second two-position five-way solenoid valve, a second two-position four-way solenoid valve and a second two-position three-way solenoid valve in sequence from top to bottom.
4. The electrically controlled transmission according to claim 1, wherein a plurality of gears of different sizes are arranged in the single-pack clutch at the same center for transmitting torque.
5. An electrically variable transmission according to claim 2, wherein said full single pack clutch assembly is 7 single pack clutches, and wherein 7 of said single pack clutches comprise a CF single pack clutch, an N/CR single pack clutch, a KF single pack clutch, a C1 single pack clutch, a C2/O single pack clutch, a C3 single pack clutch, a FA single pack clutch; the CF single-pack clutch and the KF single-pack clutch are respectively connected with the first electromagnetic valve through external oil-way hoses; the C1 single-pack clutch and the FA single-pack clutch are respectively connected with the second electromagnetic valve through external oil-way hoses; and the N/CR single-pack clutch, the C2/O single-pack clutch and the C3 single-pack clutch are correspondingly communicated with an oil inlet in the box body assembly through an oil circuit in the valve body of the first/second electromagnetic valve respectively.
6. An electrically variable transmission according to claim 1, wherein said case assembly comprises a sub-housing assembly; an external combination valve is arranged on one side of a main oil port surface on the auxiliary shell assembly; and a filter assembly is arranged on the outer side of the external combination valve.
7. An electric control gearbox control system, which is characterized by comprising an integrated control system, an electric control handle, a control box, an external host and the electric control gearbox of any one of claims 1 to 6;
the control box is connected with the electric control handle and is used for controlling the signal output of the gear instruction;
the control box is connected with the upper integration valve assembly and used for receiving a working instruction output by the integration system and driving the CF single-pack clutch, the N/CR single-pack clutch and the KF single-pack clutch to realize forward and backward movement and high-speed gear shifting of the electric control gearbox;
the control box is connected with the lower integrated valve assembly and used for receiving a working instruction output by the integrated control system, driving the C1 single-packet clutch, the C2/O single-packet clutch and the C3 single-packet clutch and realizing the speed gear torque output of the electric control gearbox; the FA single-pack clutch is driven to be connected/disconnected, and the four-drive/two-drive driving automatic switching of the electric control gearbox is realized;
the control box is connected with the external host interface and used for receiving power signals and communication instructions of the external host.
8. An electrically controlled transmission control system according to claim 7, characterised in that the integrated control system comprises a TCU control unit for controlling all functions of the input, output and drive modules of the overall integrated control system.
9. A loader comprising an electronically controlled gearbox control system according to claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547325.8A CN114251444B (en) | 2021-12-17 | 2021-12-17 | Electric control gearbox, control system thereof and digging and installing machine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111547325.8A CN114251444B (en) | 2021-12-17 | 2021-12-17 | Electric control gearbox, control system thereof and digging and installing machine thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114251444A true CN114251444A (en) | 2022-03-29 |
| CN114251444B CN114251444B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111547325.8A Active CN114251444B (en) | 2021-12-17 | 2021-12-17 | Electric control gearbox, control system thereof and digging and installing machine thereof |
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| US20180086345A1 (en) * | 2016-09-27 | 2018-03-29 | Kcm Corporation | Work Vehicle |
| CN207864605U (en) * | 2018-01-16 | 2018-09-14 | 上海彭浦机器厂有限公司 | A kind of electrichydraulic control walking steerable system of crawler dozer |
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| CN101532564A (en) * | 2009-04-05 | 2009-09-16 | 徐州工程机械科技股份有限公司 | Full flow electrohydraulic control system for construction machinery gear box |
| CN101725705A (en) * | 2009-12-15 | 2010-06-09 | 重庆青山工业有限责任公司 | Double-clutch speed changer integrated control module |
| CN201646391U (en) * | 2009-12-24 | 2010-11-24 | 中国一拖集团有限公司 | Operating valve block assembly of tractor |
| CN104373526A (en) * | 2014-08-21 | 2015-02-25 | 徐工集团工程机械股份有限公司科技分公司 | Power shift gearbox |
| US20180086345A1 (en) * | 2016-09-27 | 2018-03-29 | Kcm Corporation | Work Vehicle |
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| CN114251444B (en) | 2023-05-26 |
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