CN102730566B - Stepless shifting device, stepless shifting method, and tower crane - Google Patents
Stepless shifting device, stepless shifting method, and tower crane Download PDFInfo
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- CN102730566B CN102730566B CN201210222735.XA CN201210222735A CN102730566B CN 102730566 B CN102730566 B CN 102730566B CN 201210222735 A CN201210222735 A CN 201210222735A CN 102730566 B CN102730566 B CN 102730566B
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Abstract
The invention discloses a stepless shifting device, a stepless shifting method, and a tower crane. The device comprises a gear-shift gear input device, and a controller. The gear-shift stage input device is configured to provide gear-shift stage input signals. The controller is connected to the gear-shift stage input device. The controller is provided with more than two gear-shift stages, and gear-shift stage dead zones between adjacent gear-shift stages. The controller is configured to monitor the gear-shift stage input signals, and determine and output gear-shift stage signals according to the monitoring result and the divided gear-shift stages. Therefore, according to the invention, gear-shift stage spans and gear-shift stage dead zones are divided according to the value of analogue sampled by a potentiometer. When the gear-shift stage spans are divided, a certain dead zone is preserved between adjacent gear-shift stages. Therefore, gear-shift stage signal retention during a shifting process is realized, jittering is effectively eliminated, and smooth shifting is realized.
Description
Technical field
The present invention relates to engineering machinery field, particularly the stepless gearshift of one and method and tower machine.
Background technology
At present, the motor gearshift of tower crane lifting, luffing, swing type mechanism is general adopts two-stage or three grades of gearshift modes.
With reference to Fig. 1, it is the gearshift mode schematic diagram for the three-step timing of lifting motor.The gear shifting signal that hoists comprises usually: the direction signal rising, decline, and 1 gear, 2 gears, 3 shift signals kept off.As shown in Figure 1, the input check point of tower machine controller judges direction and the gear of gearshift by the comprehensive state detecting direction signal and shift signal.Such as: the input check point of described controller detects that ascent direction and 1 gear have signal simultaneously, and other gears do not have signal, then described controller determines that the direction of current gearshift and gear are that rising 1 keeps off signal, and realizes the output of corresponding gear.But there is following problem in this gearshift mode:
1) in gear on-off handoff procedure, because mechanical reason exists neutral between each gear, can cause very easily causing tower machine to shake during operation gear lever handle.
2) above-mentioned gearshift mode expandability is poor, and as three-speed motor adopts three block handles to control, double-speed motor then adopts two block handles to control.
Summary of the invention
In view of this, the present invention proposes a kind of stepless gearshift and method and tower machine, and can solve the problem that shift signal instability causes tower machine shake, realization is smoothly shifted gears.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of stepless gearshift, this stepless gearshift comprises: gear entering apparatus and controller, and wherein, described gear entering apparatus is configured to provide gear incoming signal; Described controller is connected with described gear entering apparatus, this controller is provided with two or more gear and is arranged on the gear dead band between two adjacent gears, and described controller is configured to monitor described gear incoming signal and determines according to monitoring result and the gear divided and export shift signal.
In said apparatus, described gear entering apparatus comprises the potential device being provided for the gear incoming signal indicating object gear size and Orientation, a termination power of this potential device, other end ground connection; And this potential device is connected with described controller.
Further, in said apparatus, described controller be provided with define gear direction first direction region, second direction region and the commutation dead band between described first direction region and second direction region.
Alternatively, in said apparatus, described gear entering apparatus comprises the potential device that is all connected with described controller and direction and to shift gears device; Wherein, the bit positions ground connection of described potential device, two ends are connected to power supply respectively; Described gear incoming signal comprises: the dividing potential drop analog signals of object gear size that what described potential device provided be used to indicate, and the on-off model in instruction object gear direction that described direction gearshift device provides.
Preferably, in said apparatus, be connected for wired connection or radio communication between described controller with described gear entering apparatus.
Preferably, in said apparatus, described controller also comprises: gear adjusting device; This gear adjusting device is configured to according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
Preferably, in said apparatus, this stepless gearshift is also provided with the gear selector of each gear information of display and/or current shift status information, and this gear selector is connected with described controller, described gear entering apparatus respectively; Wherein, this gear selector is also configured to according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
On the other hand, the present invention also provides a kind of tower machine, and this tower machine is equiped with the above-mentioned stepless gearshift of any one.
Another aspect, the present invention also provides a kind of stepless process for gear, and the method comprises: the controller of stepless gearshift marks off two or more gear and is arranged on the gear dead band between two adjacent gears; The gear incoming signal that described monitoring control devices is provided by gear entering apparatus, and determine according to the gear of monitoring result and division and export shift signal.
Preferably, in said method, described controller obtains described gear incoming signal by wired connection or radio communication connection mode from described gear entering apparatus; Wherein, described shift signal comprises the on-off model in dividing potential drop analog signals and the instruction gearshift direction being used to indicate gear size.
Preferably, in said method, described stepless gearshift shows each gear information and/or current shift status information by the gear selector that it arranges; And/or, according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
Relative to prior art, the present invention has following advantage:
Stepless gearshift of the present invention and method, gear interval and gear dead band is divided by the value of the analog quantity of sampling according to potential device, during each gear interval division, reserved certain dead band between adjacent gear, solve the Preserving problems of shift signal in shift process, effective elimination shake, realizes smoothly shifting gears.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is for the gearshift mode schematic diagram of the three-step timing of lifting motor in correlation technique;
Fig. 2 is the structured flowchart of the stepless gearshift embodiment one of the present invention;
Fig. 3 is the structured flowchart of the stepless gearshift embodiment two of the present invention;
Fig. 4 is the schematic flow sheet of the stepless process for gear of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and technical scheme of the present invention is described in conjunction with the embodiments.
Basic thought of the present invention is: design a kind of stepless process for gear and device, gear interval and gear dead band is divided according to the value of the analog quantity of potential device sampling, during each gear interval division, between adjacent gear, reserved certain dead band, can solve the Preserving problems of shift signal.Further, gear interval of the present invention arranges flexibly, and expandability is good.
Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further:
With reference to Fig. 2, it illustrates the structure of a kind of stepless gearshift embodiment of the present invention, this stepless gearshift comprises: gear entering apparatus and controller, the gear entering apparatus of the present embodiment can control handle be example, and this gear entering apparatus comprises: potential device and the direction gearshift device or the circuit that provide on-off model.
, it is pointed out that the gear of the present embodiment has two measurement factors, i.e. size and Orientations herein, wherein, the dividing potential drop analog signals that the size of gear is provided by potential device is determined, the direction of gear can be determined by following two kinds of modes:
mode one:
As shown in Figure 2, described gear entering apparatus is configured to provide gear incoming signal, and described gear entering apparatus comprises the potential device that is all connected with described controller and direction and to shift gears device.Therefore, described gear incoming signal comprises: the dividing potential drop analog signals of object gear size that what described potential device provided be used to indicate, and the on-off model in instruction object gear direction that described direction gearshift device provides.
Wherein, the bit positions ground connection of described potential device, two ends are connected to power supply respectively---the first power supply, second source, described potential device is configured to the dividing potential drop analog signals being provided for indicating gear size; Described direction gearshift device is configured to the on-off model providing instruction gearshift direction.
mode two:
As shown in Figure 3, described gear entering apparatus comprises potential device, and this potential device is for being provided for the gear incoming signal indicating gear size and Orientation.One termination power of this potential device, as the first power supply, other end ground connection.Further, this potential device and described controller sliding block joint.Here, described gear incoming signal is dividing potential drop analog signals.
Wherein, be boundary at described potential device bit positions, divide the region, direction of gear, generally both direction region can be set, that is: first direction region and second direction region, and between described first direction region and second direction region, being provided with commutation dead band, the first power supply that the setting of commutation dead zone voltage can connect according to described potential device is arranged.Such as: 0 is first direction region to (the first power line voltage-commutation dead zone voltage)/2, the gear incoming signal instruction produced in this region: move down or turn left or move inward.Relatively, (the first power line voltage+commutation dead zone voltage)/2 to the first power supplys are second direction region, the instruction of the gear incoming signal that produces in this region: move up or turning clockwise or outwards movement.
Here, with the first power line voltage 5V, controller sampling precision 12, it is 0 ~ 4095 for example that the voltage of described potential device may correspond to the analog quantity scope converted to, and first direction region is 0 ~ 2.44V, and it may correspond to binary simulation amount: 0 ~ 2000; Commutation dead zone voltage is 2.44V ~ 2.56V, and it may correspond to binary simulation amount: 2001 ~ 2100; Second direction region is 2.56V ~ 5V, and it may correspond to binary simulation amount: 2101 ~ 4095.
Be more than two kinds of modes determining gear direction, the main difference part of the two is that the gear incoming signal of mode two can represent size and the direction of gear by dividing potential drop analog signals simultaneously, comparatively mode one reduces by two on-off model, such simplification signal transacting, and saving hardware, simplify circuit arragement.
Below the mode that described gear divides is described further.Described controller is connected with described gear entering apparatus, this controller is provided with two or more gear and is arranged on the gear dead band between two adjacent gears, described controller is configured to monitor the gear incoming signal that described gear entering apparatus provides, and determine according to monitoring result and the gear divided and export shift signal, to control the action of miscellaneous part, thus meet the job requirements of construction machinery and equipment as tower machine.
It should be noted that, described gear is that to divide according to the sampling precision of himself analog quantity that described power supply obtains by described controller interval.Described gear the dead time between two adjacent gears, the burst length in described gear dead band according to described gear entering apparatus as the precision of control handle, operate miss and environmental factor are determined.
As shown in Figure 2, the signal wire (SW) of described potential device enters in described controller (as central process unit), and the bit positions ground connection GND of described potential device, the two ends of described potential device connect the first power supply and second source respectively.In the present embodiment, described first power supply and second source are 5V power supply.
It should be noted that, in the various embodiments described above, described first power supply and second source can be identical power supply, and certainly, also can be different power supplys, this can design according to need of work, and the present embodiment is to this and be construed as limiting.Such as: when tower machine operationally, when lifting, luffing or swing type mechanism need to carry out asymmetric operation, by changing described first power supply and second source realization.
In the present embodiment, described controller, by the monitoring position of described signal wire (SW) on described potential device, detects the position of described control handle.Further, described control handle is pulled in process, the swept resistance resistance of described potential device can change thereupon, the signal wire (SW) of described potential device also changes relative to the dividing potential drop of described potential device bit positions thereupon, therefore, described controller detects that the dividing potential drop of signal wire (SW) just can judge the position of described control handle, i.e. the gear of described control handle instruction.
Described controller collects the magnitude of voltage of dividing potential drop by signal wire (SW), described magnitude of voltage generally between 0 to the first or second source, as 0 ~ 5V.After described magnitude of voltage enters controller, convert the analog value relevant to controller sampling precision to.Such as: if described controller sampling precision is 12, then carry out Binary Conversion, gathered magnitude of voltage corresponding conversion is become the analog quantity of 0 ~ 4095 scope.If controller sampling precision is 16, then gathered magnitude of voltage corresponding conversion becomes the analog quantity of 0 ~ 65535 scope.Therefore, described controller can divide the interval of multiple gear and the interval in gear dead band by the following method:
Interval 1:[analog quantity 1, analog quantity 2], corresponding to gear 1;
Gear dead band 1:[analog quantity 3 between interval 1 and interval 2, analog quantity 4];
Interval 2:[analog quantity 5, analog quantity 6], corresponding to gear 2;
Gear dead band 2:[analog quantity 7 between interval 2 and interval 3, analog quantity 8];
Interval 3:[analog quantity 9, analog quantity 10], corresponding to gear 3;
……
The like, the present embodiment according to the electric machine speed regulation requirement of apolegamy mechanism, can realize the interval division of many gears, thus realizes the flexible configuration of gear.Arranging gear dead band between each gear is to make shift signal be kept, and the shake in process pulled by tolerance handle, realizes smoothly shifting gears.
It should be noted that, analog quantity 1, analog quantity 2 ... analog quantity N is serial number, respectively corresponding zero analog value relevant to controller sampling precision become to first, second power supply corresponding conversion.Interval range i.e. corresponding the choosing of above-mentioned each analog quantity of described gear can be carried out according to the demand for control of tower machine.
Such as: for mode one, with the controller sampling precision of 12, namely the analog quantity scope of corresponding conversion gets 0 ~ 4095 for example, unloading phase need to start fast, then in gear 1, analog quantity 1 gets 0, and the desirable point value bigger than normal of analog quantity 2 is as 1500.Described gear the dead time is between two adjacent gears, the burst length in described gear dead band generally can be set in 100 to 200 scopes, do not affect tower machine stability with the precision of described control handle, operate miss and environmental factor, can not cause be dithered as suitable.
And for example, for mode two, with the controller sampling precision of 12, namely the analog quantity scope of corresponding conversion gets 0 ~ 4095 for example, in first direction region, divides 3 gears, as: gear 1 is set to [0,800], and the gear dead band between gear 1 and gear 2 can be set to [801,900], gear 2 is set to [901,1400], gear dead band between gear 2 and gear 3 can be set to [1401,1500], and gear 3 can be set to [1501,2000], by that analogy.
In addition, the quantity of described gear also can require and control overflow according to the electric machine speed regulation of apolegamy mechanism, carries out flexible configuration in the controller.
Preferably, described controller also comprises gear adjusting device, according to control overflow or job requirements, is adjusted the quantity in described gear and described gear dead band and border by this gear adjusting device.Especially, when working environment or control overflow change, by described gear adjusting device, the quantity in described gear and described gear dead band and border are adjusted or reset, to meet operation needs, and without the need to changing hardware setting.
In the various embodiments described above, described control handle is configured with potential device and direction gearshift device further; Described potential device is configured to the dividing potential drop analog signals providing instruction object gear size; Described direction gearshift device is configured to the on-off model in the direction providing instruction object gear.In the various embodiments described above, the corresponding described dividing potential drop analog signals in described controller Real-time Collection control handle position or described dividing potential drop analog signals and on-off model, therefore, described shift signal comprises dividing potential drop analog signals and the on-off model of described control handle position instruction; Or described shift signal comprises the described dividing potential drop analog signals indicating object gear size and Orientation simultaneously.
It is pointed out that described monitoring control devices to described dividing potential drop analog signals corresponding be described gear entering apparatus select gear.In addition, described controller is really hoisted by the direction switch amount signal monitored, the sense of motion of luffing, swing type mechanism, as: rise, decline, inwards, outwards, to the left or to the right etc.
As shown in Figure 2, described potential device two ends respectively connect the power supply of 5V, described gear entering apparatus contact 1,2 sends the on-off model in instruction gearshift direction to described controller, and described monitoring control devices to described direction switch amount signal, and then realizes the judgement of handle orientations.
The gear wayside signaling of described controller synthesis direction switch amount and division, exports corresponding shift signal, and to control the corresponding actuating of relay, realization hoists, the flexible speed governing of luffing, swing type mechanism.It is pointed out that in the various embodiments described above, according to the hoisting of apolegamy, the electric machine speed regulation requirement of luffing, swing type mechanism, the interval division of many gears can be realized respectively, realize the flexible configuration of described gear.In the various embodiments described above, the gear of the hoisting of tower machine, luffing, swing type mechanism arranges and all can adopt above-mentioned gear set-up mode.
What it should be noted that described swing type mechanism requires meticulousr to gear, should try one's best accurately, to meet its operation requirements when arranging to choosing of the burst length in gear, gear dead band and quantity.
In the various embodiments described above, be connected for wired connection or radio communication between described controller with described gear entering apparatus.Such as: time in the operator's compartment of tower machine by there being a line control stepless gearshift, between described controller and described gear entering apparatus, can wired connection be adopted.As shown in Figure 2, after described gear entering apparatus selects gear, described controller is connected with described gear entering apparatus by signal wire (SW) 3, obtains the gear incoming signal that corresponding gear entering apparatus proposes---dividing potential drop analog signals or dividing potential drop analog signals and on-off model.
In addition, when carrying out stepless gearshift by remote control mode control tower machine, between described controller with described gear entering apparatus, radio communication can be adopted to be connected, now, realize this radio communication by configuration projector with receptor and be connected.Described projector is connected with gear entering apparatus, and described receptor is connected with controller, CAN (controller local area network) bus can be adopted to connect herein.Like this, after described gear entering apparatus selects gear, by projector by the dividing potential drop analog signals that obtains from described gear entering apparatus or dividing potential drop analog signals and direction switch amount signal, send it to receptor, described receptor by described dividing potential drop analog signals or described dividing potential drop analog signals and direction switch amount Signal transmissions to described controller.Thus described controller is according to the size and Orientation of described dividing potential drop analog signals or described dividing potential drop analog signals and direction switch amount signal determining object gear.
In the various embodiments described above, described stepless gearshift also can be provided with the gear selector of each gear information of display and/or current shift status information, and this gear selector is connected with described controller, described gear entering apparatus respectively.Therefore, this gear selector can be read out instrument, as touch display screen.
It is to be noted, generally, described gear selector accessible site on described controller, but for being carried out the situation of stepless gearshift by wireless remote control mode control tower machine, described gear selector can be integrated on described gear entering apparatus, so that tower crane user carries out remote manipulation.Or, if operative scenario is if required, described gear selector can be configured respectively on described controller, gear entering apparatus, to show relevant gear parameter, understand gear parameter for operator.Certainly, the present embodiment does not make considered critical to this.
With the gear adjusting device in the various embodiments described above alternatively, this gear selector is also configured to: according to control overflow, shows and adjusts or reset quantity and the border in described gear and described gear dead band.
Preferably, gear adjusting device in the various embodiments described above also accessible site in described gear selector, according to control overflow or job requirements, directly by described gear selector, the quantity in described gear and described gear dead band and border are adjusted, it is advantageous that, adjusting or reseting period, process can intuitively show by described gear selector.
Relative to above-mentioned gear selector, each gear information and/or current shift status information are shown to the mode of operator, alternatively, the stepless gearshift of the present embodiment is by arranging sound alarming device as buzzer phone, and as pointed out with the number of times of buzzing or length, operator's gear changes, current shift state.
Therefore, the stepless gearshift of the various embodiments described above of the present invention, can not only solve the Preserving problems of shift signal in shift process, effectively eliminate shake, realizes smoothly shifting gears.And above-mentioned gear interval arranges flexibly, and expandability is good, can realize unlimited expansion, the flexible configuration of gear particularly can be realized according to the electric machine speed regulation demand of apolegamy.
Also provide a kind of tower machine according to a further aspect in the invention, this tower machine is equiped with the stepless gearshift described in above-mentioned any embodiment.Therefore, the tower function that the present invention proposes effectively overcomes the deficiency of traditional gearshift mode, and when dividing each gear and being interval, reserved certain gear dead band between described gear, solves the problem that shift signal inconvenience keeps.Further, gear interval of the present invention arranges flexibly, and expandability is good.
Below in conjunction with above-mentioned each device embodiment, the stepless process for gear of one that the present invention proposes is described further.It should be pointed out that this method embodiment can be realized by the stepless gearshift in above-described embodiment.
As shown in Figure 4, this stepless process for gear comprises the following steps:
Step 101: the controller of described stepless gearshift marks off two or more gear and is arranged on the gear dead band between two adjacent gears.
Wherein, described controller obtains described gear incoming signal by wired connection or radio communication connection mode from described gear entering apparatus.In the present embodiment, described gear incoming signal can comprise: the on-off model in the dividing potential drop analog signals being used to indicate object gear size and Orientation or the dividing potential drop analog signals being used to indicate object gear size and instruction object gear direction.This step mainly carries out the division of gear for dividing potential drop analog signals, therefore above-mentioned two kinds of gear incoming signals can adopt same gear dividing mode, and the present embodiment is not restricted this.
In this step, described gear is by the sampling precision of described controller according to himself, and in conjunction with power supply, corresponding, divides the analog quantity that power supply that described potential device connects obtains interval.Described gear the dead time, between two adjacent gears, determines the burst length in described gear dead band according to the precision of described control handle, operate miss and environmental factor.In the controller, the interval of multiple gear and the interval in gear dead band can be divided by the following method:
Interval 1:[analog quantity 1, analog quantity 2], corresponding to gear 1;
Gear dead band 1:[analog quantity 3 between interval 1 and interval 2, analog quantity 4];
Interval 2:[analog quantity 5, analog quantity 6], corresponding to gear 2;
Gear dead band 2:[analog quantity 7 between interval 2 and interval 3, analog quantity 8];
Interval 3:[analog quantity 9, analog quantity 10], corresponding to gear 3;
……
The like, the present embodiment according to the electric machine speed regulation requirement of apolegamy mechanism, can realize the interval division of many gears, thus realizes the flexible configuration of gear.Arranging gear dead band between each gear is to make shift signal be kept, and the shake in process pulled by tolerance handle, realizes smoothly shifting gears.
Step 102: described gear entering apparatus provides corresponding gear incoming signal according to control needs.
In this step, described gear entering apparatus such as control handle is pulled in process, the swept resistance resistance of connected potential device can change thereupon, the signal wire (SW) of described potential device also changes relative to the dividing potential drop of described potential device bit positions thereupon, therefore, described controller detects that the dividing potential drop of signal wire (SW) just can judge the position of described control handle, and then reaches gear incoming signal.
Step 103: the gear incoming signal that described monitoring control devices is provided by gear entering apparatus, and determine according to the gear of monitoring result and division and export shift signal.
In this step, described controller, by monitoring the position on the potential device of described signal wire (SW) in described gear entering apparatus, detects the gear incoming signal that described gear entering apparatus provides.Wherein, described controller can the dividing potential drop analog signals that provides of Real-time Collection gear entering apparatus or dividing potential drop analog signals and on-off model.
It is pointed out that the on-off model of described controller synthesis direction indication and divide the dividing potential drop analog signals in gear interval, exporting corresponding shift signal, to control the corresponding actuating of relay, realizing hoisting, the flexible speed governing of luffing, swing type mechanism.In the various embodiments described above, according to the hoisting of apolegamy, the electric machine speed regulation requirement of luffing, swing type mechanism, the interval division of many gears can be realized respectively, realizes the flexible configuration of described gear.In the various embodiments described above, the gear of the hoisting of tower machine, luffing, swing type mechanism arranges and all can adopt above-mentioned gear set-up mode.
The wayside signaling of described controller synthesis direction switch amount and division, exports corresponding shift signal, and to control the corresponding actuating of relay, realization hoists, the flexible speed governing of luffing, swing type mechanism.It is pointed out that in the various embodiments described above, according to the hoisting of apolegamy, the electric machine speed regulation requirement of luffing, swing type mechanism, the interval division of many gears can be realized respectively, realize the flexible configuration of described gear.In the various embodiments described above, the gear of the hoisting of tower machine, luffing, swing type mechanism arranges and all can adopt above-mentioned gear set-up mode.
In a further preferred embodiment, described stepless process for gear also can comprise:
Step 104: described controller is according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
According to control overflow or job requirements, described controller can adjust the quantity in described gear and described gear dead band and border.Especially, when working environment or control overflow change, the quantity in described gear and described gear dead band and border are adjusted, to meet operation needs, and without the need to changing hardware setting.
In a further preferred embodiment, described stepless process for gear also can comprise:
Step 105: described stepless gearshift shows each gear information and/or current shift status information by the gear selector that it arranges.
In this step, described controller is configured with gear selector, and the current state information of each gear is shown to user by this gear selector, to become user intuitively learning shifting state and alteration.
With above-mentioned steps 104 alternatively, can adjust or reset quantity and the border in described gear and described gear dead band by described gear selector according to control overflow.
Therefore, from the various embodiments described above, the present invention effectively can overcome the deficiency of traditional gearshift mode, by reserving certain dead band when each gear interval division, solving the Preserving problems of shift signal, effectively eliminating shake, realizes smoothly shifting gears.Further, gear interval of the present invention arranges flexibly, and expandability is good, can realize the flexible configuration of gear according to the electric machine speed regulation demand of apolegamy.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a stepless gearshift, is characterized in that, comprising:
Gear entering apparatus, it is configured to provide gear incoming signal;
Controller, it is connected with described gear entering apparatus, this controller is provided with two or more gear and is arranged on the gear dead band between two adjacent gears, and described controller is configured to monitor described gear incoming signal and determines according to monitoring result and the gear divided and export shift signal;
Wherein, the value of analog quantity that sample according to the potential device of described gear entering apparatus in described gear dead band divides.
2. stepless gearshift according to claim 1, is characterized in that, described gear entering apparatus comprises the potential device being provided for the gear incoming signal indicating object gear size and Orientation, a termination power of this potential device, other end ground connection; And this potential device is connected with described controller.
3. stepless gearshift according to claim 2, is characterized in that, described controller be provided with define gear direction first direction region, second direction region and the commutation dead band between described first direction region and second direction region.
4. stepless gearshift according to claim 1, is characterized in that, described gear entering apparatus comprises the potential device that is all connected with described controller and direction and to shift gears device; Wherein, the bit positions ground connection of described potential device, two ends are connected to power supply respectively;
Described gear incoming signal comprises: the dividing potential drop analog signals of object gear size that what described potential device provided be used to indicate, and the on-off model in instruction object gear direction that described direction gearshift device provides.
5. the stepless gearshift according to any one of Claims 1-4, is characterized in that, is connected between described controller with described gear entering apparatus for wired connection or radio communication.
6. stepless gearshift according to claim 5, is characterized in that, described controller also comprises: gear adjusting device; This gear adjusting device is configured to according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
7. stepless gearshift according to claim 5, it is characterized in that, this stepless gearshift is also provided with the gear selector of each gear information of display and/or current shift status information, and this gear selector is connected with described controller, described gear entering apparatus respectively;
Wherein, this gear selector is also configured to according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
8. a tower machine, is characterized in that, this tower machine is equiped with the stepless gearshift described in any one of claim 1 to 7.
9. a stepless process for gear, is characterized in that, comprising:
The controller of stepless gearshift marks off two or more gear and is arranged on the gear dead band between two adjacent gears; Wherein, the value of analog quantity that sample according to the potential device of gear entering apparatus in described gear dead band divides;
The gear incoming signal that described monitoring control devices is provided by gear entering apparatus, and determine according to the gear of monitoring result and division and export shift signal.
10. stepless process for gear according to claim 9, is characterized in that, described controller obtains described gear incoming signal by wired connection or radio communication connection mode from described gear entering apparatus;
Wherein, described shift signal comprises the on-off model in dividing potential drop analog signals and the instruction gearshift direction being used to indicate gear size.
11. stepless process for gear according to claim 9 or 10, it is characterized in that, described stepless gearshift shows each gear information and/or current shift status information by the gear selector that it arranges; And/or, according to control overflow adjustment or quantity and the border of reseting described gear and described gear dead band.
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| CN201210222735.XA CN102730566B (en) | 2012-06-29 | 2012-06-29 | Stepless shifting device, stepless shifting method, and tower crane |
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| CN201210222735.XA CN102730566B (en) | 2012-06-29 | 2012-06-29 | Stepless shifting device, stepless shifting method, and tower crane |
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| JPH06222852A (en) * | 1993-01-25 | 1994-08-12 | Komatsu Ltd | Joy stick control panel |
| US6986725B2 (en) * | 2002-11-01 | 2006-01-17 | Eaton Corporation | Continuously variable stepped transmission |
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| CN201472373U (en) * | 2009-07-10 | 2010-05-19 | 沈勇 | Gear shifting power failure automatic compensating device for automated manual transmission (AMT) |
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