CN103241688A - Motor active speed-reduction buffer system for measurement and control of forklift stroke - Google Patents
Motor active speed-reduction buffer system for measurement and control of forklift stroke Download PDFInfo
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- CN103241688A CN103241688A CN2013101787429A CN201310178742A CN103241688A CN 103241688 A CN103241688 A CN 103241688A CN 2013101787429 A CN2013101787429 A CN 2013101787429A CN 201310178742 A CN201310178742 A CN 201310178742A CN 103241688 A CN103241688 A CN 103241688A
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Abstract
The invention provides a motor active speed-reduction buffer system for measurement and control of a forklift stroke and aims to solve the problem of forklift shaking and vibration easily caused by severe impact when a forklift lifts or descends goods to the tail end of the stroke. The motor active speed-reduction buffer system comprises a pump motor, a vehicle controller, an ascending switch, a descending switch, a 24V power supply, a 80V power supply, a signal processing unit, an ascending buffer enabling switch and a descending buffer enabling switch, wherein the 24V power supply is connected with the signal processing unit through the ascending buffer enabling switch; the 24V power supply is connected with the signal processing unit through the descending buffer enabling switch; and the signal processing unit is connected with the vehicle controller and the 80V power supply respectively. The motor active speed-reduction buffer system has the advantages that the impact force during the goods ascending or descending process is reduced effectively, damage to forklifts is reduced, and the problems that bounce can occur easily and equipment can be worn and even fail easily when a buffer is used are solved; and the structure is simple, installation and debugging are convenient, and the cost is low.
Description
Technical field
The invention belongs to fork truck control technology field, be specifically related to that goods hoists and motor reduction of speed buffer system initiatively when dropping to end of travel.
Background technology
Fork truck in the course of the work, hoisting, descending of goods is its basic action.When goods rises to the top, because the stroke limitation of lift oil tank, the collision when relying on oil cylinder piston to push up orienting sleeve and stopping.Because the speed of goods operation is bigger, when oil cylinder piston and orienting sleeve collision, can produce certain impulsive force and noise, the goods that causes the vehicle body generation to vibrate and be in the high-altitude produces and rocks.Drop to when bottom at goods equally, rely on the collision of oil cylinder piston and cylinder bottom and stop, producing very big impulsive force equally, cause rocking and vibrating of vehicle.
For this reason, mainly be to utilize energy disperser to absorb the energy that impacts at the existing solution of the problems referred to above, make it change heat energy into then, perhaps gently discharge the time that changes with extending speed, thereby reach the purpose that as far as possible reduces the suffered impulsive force of mechanical equipment.Energy disperser can be divided into by endergonic mode difference: the mechanical damping device, impact kinetic energy can be converted into the deformation energy of elastic element, or with the internal resistance dissipation energy of padded coaming; Hydraulic buffer absorbs energy with the hydraulic throttle mode.
But adopt energy disperser to reduce impulsive force following shortcoming is arranged: 1) energy changes into heat energy and is dissipated, and can't reuse; 2) in the process of buffering, form bounce-back easily; 3) complex structure is installed inconvenience.
Summary of the invention
At fork truck at the above-mentioned technical barrier that hoists or the goods that descends exists during to end of travel, the invention provides a kind of motor active reduction of speed buffer system for the observing and controlling of fork truck stroke, before goods rises to end of travel, begin to reduce speed and the moment of torsion of motor output, and then reduce the speed of goods operation; Before goods drops to end of travel, increase the moment of torsion of motor, reduce the running velocity of motor, reduce the speed of goods operation.The mode that adopts motor initiatively to slow down, kinetic energy and impulse force when effectively reducing the collision of oil cylinder piston and orienting sleeve and cylinder bottom, thus realize effective vibration that reduces noise and vehicle, prolong the service life of vehicle, improve the safety of operation and the traveling comfort of operation.
Concrete structure of the present invention is as follows:
Be used for the motor active reduction of speed buffer system of fork truck stroke observing and controlling, comprise pump motor 1, vehicle control device 2, up switch 3, decline switch 7,24 volts of power supplys 9 and 80 volts of power supplys 10; Wherein, by up switch 3 24 volts of power supplys 9 are connected with the signal input part of vehicle control device 2; By decline switch 7 24 volts of power supplys 9 are connected with the signal input part of vehicle control device 2; Vehicle control device 2 is connected with 80 volts of power supplys 10 with pump motor 1 respectively, in addition, also is provided with signal processing unit 4, rises and cushion enable switch 5 and descend buffering enable switch 6; Wherein, by the buffering enable switch 5 that rises 24 volts of power supplys 9 are connected with the signal input part of signal processing unit 4; Buffering enable switch 6 is connected 24 volts of power supplys 9 with the signal input part of signal processing unit 4 by descending; Signal processing unit 4 is connected with 80 volts of power supplys 10 with vehicle control device 2 respectively.
When the buffering enable switch 5 that rises, the buffering enable switch 6 that descends and decline switch 7 all are in off-state, and up switch 3 is when being in conducting state, and vehicle control device 2 driving pump motors 1 namely make fork truck praise goods with normal speed with normal speed work; Buffering enable switch 6 and decline switch 7 all are in off-state when descending, and rise buffering enable switch 5 and up switch 3 are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls namely slows down the speed that fork truck is praised goods with deceleration work, realizes the function that rises and cushion; When the buffering enable switch 5 that rises, the buffering enable switch 6 that descends and up switch 3 all are in off-state, and decline switch 7 is when being in conducting state, and vehicle control device 2 driving pump motors 1 are with normal speed work, namely makes fork truck with the normal speed goods that descends; Buffering enable switch 5 and up switch 3 all are in off-state when rising, and descend buffering enable switch 6 and decline switch 7 are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls namely slows down the speed of fork truck decline goods with deceleration work, realizes the function that descends and cushion.
In addition, signal processing unit 4 is made up of rise buffering end relay k5, the buffering that descends end relay k6 and instrument assembly chip U2; Wherein, instrument assembly chip U2 is that model is the control chip of 80Vsmart, and instrument assembly chip U2 is provided with rising buffering signals port iLIFT, instrument end the communicate by letter first port iCANH, instrument end the communicate by letter second port iCANL, decline buffering signals port iDOWN, the anodal port iBP of instrument power and instrument power negative pole port iBN;
The buffering that rises enable switch 5 is for being arranged on the nearly switch sensor k1 of rising termination of fork truck inner upright mounting center member; The end node of 24 volts of power supplys 9 with the buffering end relay k5 control end that rises is connected the other end node ground connection of the buffering that rises end relay k5 control end by the nearly switch sensor k1 of rising termination; One end node of the buffering that rises end relay k5 controlled terminal is connected with 80 volts of power supplys 10, and the other end node of the buffering that rises end relay k5 controlled terminal is connected with rising buffering signals port iLIFT;
The buffering that descends enable switch 6 is for being arranged on the nearly switch sensor k2 of decline termination of fork truck outer mast center member; The end node of 24 volts of power supplys 9 with the buffering end relay k6 control end that descends is connected the other end node ground connection of the buffering that descends end relay k6 control end by the nearly switch sensor k2 of decline termination; One end node of the buffering that descends end relay k6 controlled terminal is connected with 80 volts of power supplys 10, and the other end node of the buffering that descends end relay k6 controlled terminal is connected with decline buffering signals port iDOWN; The anodal port iBP of instrument power is connected instrument power negative pole port iBN ground connection with 80 volts of power supplys 10; The instrument end first port iCANH and the control end first port CANH that communicates by letter that communicates by letter is connected, and the instrument end second port iCANL and the control end second port CANL that communicates by letter that communicates by letter is connected;
Control end positive source port BP is connected with 80 volts of power supplys 10, control end power cathode port BN ground connection;
Up switch 3 is the end micro-switch k3 that rises, end micro-switch k3 is connected 24 volts of power supplys 9 with control end rising signals port LIFT by rising, decline switch 7 is the end micro-switch k4 that descends, and end micro-switch k4 is connected 24 volts of power supplys 9 with control end dropping signal port DOWN by descending;
When the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends all are in off-state, and rise when holding micro-switch k3 to be in conducting state, vehicle control device 2 driving pump motors 1 namely make fork truck praise goods with normal speed with normal speed work;
When the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends all are in off-state, and the nearly switch sensor k1 of rising termination and the end micro-switch k3 that rises are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls is with deceleration work, namely slow down fork truck and praise the speed of goods, realize the function that rises and cushion;
When the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination and the end micro-switch k3 that rises all are in off-state, and descend when holding micro-switch k4 to be in conducting state, vehicle control device 2 driving pump motors 1 are with normal speed work, namely make fork truck with the normal speed goods that descends;
When the nearly switch sensor k1 of rising termination and the end micro-switch k3 that rises all are in off-state, and the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls is with deceleration work, namely slow down the speed of fork truck decline goods, realize the function that descends and cushion.
Beneficial technical effects of the present invention has:
1) impulsive force in the reduction goods process of rising or falling reduces the infringement that vehicle is caused;
2) effectively solve noise and jolt, improved the comfort level of navigating mate in operating process;
3) avoided adopting energy disperser and the degradation of energy that causes is big, the problem that the energy consumption of vehicle increases;
4) this product adopts initiatively reduction of speed mode of motor, rebounds easily when having overcome the use energy disperser, easily the difficult problem of equipment attrition and even inefficacy;
5) this product structure is simple, and Installation and Debugging are convenient, and cost is lower.
Description of drawings
Fig. 1 is the structured flowchart of this product.
Fig. 2 is the circuit structure diagram of Fig. 1.
Sequence number among the figure is: pump motor 1, vehicle control device 2, up switch 3, signal processing unit 4, the buffering that rises enable switch 5, the buffering that descends enable switch 6, decline switch 7, speed governing sensor 8,24 volts of power supplys 9,80 volts of power supplys 10, the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination, end micro-switch k3 rises, end micro-switch k4 descends, the buffering that rises end relay k5, the buffering that descends end relay k6, instrument assembly chip U2, rising buffering signals port iLIFT, the instrument end first port iCANH that communicates by letter, the instrument end second port iCANL that communicates by letter, decline buffering signals port iDOWN, the anodal port iBP of instrument power, instrument power negative pole port iBN, control chip U1, the control end first port CANH that communicates by letter, the control end second port CANL that communicates by letter, control end rising signals port LIFT, control end dropping signal port DOWN, control end positive source port BP, control end power cathode port BN; 12 volts of output port V12, grounding ports GND, the first phase-detection port PHA, the second phase-detection port PHB, the first temperature detection port PHA, the second temperature level detection port PHB, the first speed governing interface PPOT, the second speed governing interface NPOT, the 3rd speed governing interface CPOT, motor speed sensor SS, motor temperature sensor TS, resistance-type speed governing sensor S.
Concrete embodiment
Now be described with reference to the accompanying drawings detailed construction feature of the present invention.
Referring to Fig. 1, be used for the motor active reduction of speed buffer system of fork truck stroke observing and controlling, comprise pump motor 1, vehicle control device 2, up switch 3, decline switch 7,24 volts of power supplys 9 and 80 volts of power supplys 10; Wherein, by up switch 3 24 volts of power supplys 9 are connected with the signal input part of vehicle control device 2; By decline switch 7 24 volts of power supplys 9 are connected with the signal input part of vehicle control device 2; Vehicle control device 2 is connected with 80 volts of power supplys 10 with pump motor 1 respectively, in addition, also is provided with signal processing unit 4, rises and cushion enable switch 5 and descend buffering enable switch 6; Wherein, by the buffering enable switch 5 that rises 24 volts of power supplys 9 are connected with the signal input part of signal processing unit 4; Buffering enable switch 6 is connected 24 volts of power supplys 9 with the signal input part of signal processing unit 4 by descending; Signal processing unit 4 is connected with 80 volts of power supplys 10 with vehicle control device 2 respectively.
When the buffering enable switch 5 that rises, the buffering enable switch 6 that descends and decline switch 7 all are in off-state, and up switch 3 is when being in conducting state, and vehicle control device 2 driving pump motors 1 namely make fork truck praise goods with normal speed with normal speed work; Buffering enable switch 6 and decline switch 7 all are in off-state when descending, and rise buffering enable switch 5 and up switch 3 are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls namely slows down the speed that fork truck is praised goods with deceleration work, realizes the function that rises and cushion; When the buffering enable switch 5 that rises, the buffering enable switch 6 that descends and up switch 3 all are in off-state, and decline switch 7 is when being in conducting state, and vehicle control device 2 driving pump motors 1 are with normal speed work, namely makes fork truck with the normal speed goods that descends; Buffering enable switch 5 and up switch 3 all are in off-state when rising, and descend buffering enable switch 6 and decline switch 7 are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls namely slows down the speed of fork truck decline goods with deceleration work, realizes the function that descends and cushion.
Referring to Fig. 2, signal processing unit 4 is made up of rise buffering end relay k5, the buffering that descends end relay k6 and instrument assembly chip U2; Wherein, instrument assembly chip U2 is that model is the control chip of 80Vsmart, and instrument assembly chip U2 is provided with rising buffering signals port iLIFT, instrument end the communicate by letter first port iCANH, instrument end the communicate by letter second port iCANL, decline buffering signals port iDOWN, the anodal port iBP of instrument power and instrument power negative pole port iBN;
The buffering that rises enable switch 5 is for being arranged on the nearly switch sensor k1 of rising termination of fork truck inner upright mounting center member; The end node of 24 volts of power supplys 9 with the buffering end relay k5 control end that rises is connected the other end node ground connection of the buffering that rises end relay k5 control end by the nearly switch sensor k1 of rising termination; One end node of the buffering that rises end relay k5 controlled terminal is connected with 80 volts of power supplys 10, and the other end node of the buffering that rises end relay k5 controlled terminal is connected with rising buffering signals port iLIFT;
The buffering that descends enable switch 6 is for being arranged on the nearly switch sensor k2 of decline termination of fork truck outer mast center member; The end node of 24 volts of power supplys 9 with the buffering end relay k6 control end that descends is connected the other end node ground connection of the buffering that descends end relay k6 control end by the nearly switch sensor k2 of decline termination; One end node of the buffering that descends end relay k6 controlled terminal is connected with 80 volts of power supplys 10, and the other end node of the buffering that descends end relay k6 controlled terminal is connected with decline buffering signals port iDOWN; The anodal port iBP of instrument power is connected instrument power negative pole port iBN ground connection with 80 volts of power supplys 10; The instrument end first port iCANH and the control end first port CANH that communicates by letter that communicates by letter is connected, and the instrument end second port iCANL and the control end second port CANL that communicates by letter that communicates by letter is connected;
Control end positive source port BP is connected with 80 volts of power supplys 10, control end power cathode port BN ground connection;
Up switch 3 is the end micro-switch k3 that rises, end micro-switch k3 is connected 24 volts of power supplys 9 with control end rising signals port LIFT by rising, decline switch 7 is the end micro-switch k4 that descends, and end micro-switch k4 is connected 24 volts of power supplys 9 with control end dropping signal port DOWN by descending;
When the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends all are in off-state, and rise when holding micro-switch k3 to be in conducting state, vehicle control device 2 driving pump motors 1 namely make fork truck praise goods with normal speed with normal speed work;
When the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends all are in off-state, and the nearly switch sensor k1 of rising termination and the end micro-switch k3 that rises are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls is with deceleration work, namely slow down fork truck and praise the speed of goods, realize the function that rises and cushion;
When the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination and the end micro-switch k3 that rises all are in off-state, and descend when holding micro-switch k4 to be in conducting state, vehicle control device 2 driving pump motors 1 are with normal speed work, namely make fork truck with the normal speed goods that descends;
When the nearly switch sensor k1 of rising termination and the end micro-switch k3 that rises all are in off-state, and the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends are when being in conducting state, the moving pump motor 1 of vehicle control device 2 controls is with deceleration work, namely slow down the speed of fork truck decline goods, realize the function that descends and cushion.
Referring to Fig. 2, control chip U1 also comprises 12 volts of output port V12, grounding ports GND, the first phase-detection port PHA and the second phase-detection port PHB; Goods hoist and the motor when dropping to end of travel initiatively the reduction of speed buffer system also be provided with motor speed sensor SS; Motor speed sensor SS is connected with 12 volts of output port V12, grounding ports GND, the first phase-detection port PHA, the second phase-detection port PHB, by motor speed sensor SS pump motor 1 operating rate information is passed to vehicle control device 2.
Referring to Fig. 2, control chip U1 also comprises the first temperature detection port PHA and the second temperature level detection port PHB; Goods hoist and the motor when dropping to end of travel initiatively the reduction of speed buffer system also be provided with motor temperature sensor TS; Motor temperature sensor TS is connected with the second temperature level detection port PHB with the first temperature detection port PHA, gives vehicle control device 2 by motor temperature sensor TS with pump motor 1 operating temperature state transfer, and pump motor 1 is carried out overheat protector.
Referring to Fig. 2, control chip U1 also comprises the first speed governing interface PPOT, the second speed governing interface NPOT and the 3rd speed governing interface CPOT; Goods hoist and the motor when dropping to end of travel initiatively the reduction of speed buffer system also be provided with speed governing sensor 8; Speed governing sensor 8 is a resistance-type speed governing sensor S, and resistance-type speed governing sensor S is connected between the first speed governing interface PPOT and the second speed governing interface NPOT, and the adjustable side of speed governing sensor S is connected with the 3rd speed governing interface CPOT; By exchanging the adjusting of speed sensors S resistance, realize rising, descend, rise the integrally-regulated of buffering and decline buffer speed.
Claims (5)
1. be used for the motor active reduction of speed buffer system of fork truck stroke observing and controlling, comprise pump motor (1), vehicle control device (2), up switch (3), decline switch (7), 24 volts of power supplys (9) and 80 volts of power supplys (10); Wherein, by up switch (3) signal input part of 24 volts of power supplys (9) with vehicle control device (2) is connected; By decline switch (7) signal input part of 24 volts of power supplys (9) with vehicle control device (2) is connected; Vehicle control device (2) is connected with 80 volts of power supplys (10) with pump motor (1) respectively, it is characterized in that, also is provided with signal processing unit (4), rises and cushion enable switch (5) and descend buffering enable switch (6); Wherein, by the buffering enable switch (5) that rises the signal input part of 24 volts of power supplys (9) with signal processing unit (4) is connected; Buffering enable switch (6) is connected the signal input part of 24 volts of power supplys (9) with signal processing unit (4) by descending; Signal processing unit (4) is connected with 80 volts of power supplys (10) with vehicle control device (2) respectively;
When the buffering enable switch (5) that rises, the buffering enable switch (6) that descends and decline switch (7) all are in off-state, and up switch (3) is when being in conducting state, vehicle control device (2) driving pump motor (1) namely makes fork truck praise goods with normal speed with normal speed work;
Buffering enable switch (6) and decline switch (7) all are in off-state when descending, and rising buffering enable switch (5) and up switch (3) are when being in conducting state, the moving pump motor (1) of vehicle control device (2) control is with deceleration work, namely slow down fork truck and praise the speed of goods, realize the function that rises and cushion;
When the buffering enable switch (5) that rises, the buffering enable switch (6) that descends and up switch (3) all are in off-state, and decline switch (7) is when being in conducting state, vehicle control device (2) driving pump motor (1) is with normal speed work, namely makes fork truck with the normal speed goods that descends;
Buffering enable switch (5) and up switch (3) all are in off-state when rising, and decline buffering enable switch (6) and decline switch (7) are when being in conducting state, the moving pump motor (1) of vehicle control device (2) control is with deceleration work, namely slow down the speed of fork truck decline goods, realize the function that descends and cushion.
2. the motor active reduction of speed buffer system for the observing and controlling of fork truck stroke as claimed in claim 1 is characterized in that,
Signal processing unit (4) is made up of rise buffering end relay k5, the buffering that descends end relay k6 and instrument assembly chip U2; Wherein, instrument assembly chip U2 is that model is the control chip of 80Vsmart, and instrument assembly chip U2 is provided with rising buffering signals port iLIFT, instrument end the communicate by letter first port iCANH, instrument end the communicate by letter second port iCANL, decline buffering signals port iDOWN, the anodal port iBP of instrument power and instrument power negative pole port iBN;
Vehicle control device (2) is that a model is the control chip U1 of COMBIAC2 Power 500+500, and control chip U1 comprises control end the communicate by letter first port CANH, control end the communicate by letter second port CANL, control end rising signals port LIFT, control end dropping signal port DOWN, control end positive source port BP and control end power cathode port BN;
The buffering enable switch (5) that rises is for being arranged on the nearly switch sensor k1 of rising termination of fork truck inner upright mounting center member; The end node of 24 volts of power supplys (9) with the buffering end relay k5 control end that rises is connected the other end node ground connection of the buffering that rises end relay k5 control end by the nearly switch sensor k1 of rising termination; One end node of the buffering that rises end relay k5 controlled terminal is connected with 80 volts of power supplys (10), and the other end node of the buffering that rises end relay k5 controlled terminal is connected with rising buffering signals port iLIFT;
The buffering enable switch (6) that descends is for being arranged on the nearly switch sensor k2 of decline termination of fork truck outer mast center member; The end node of 24 volts of power supplys (9) with the buffering end relay k6 control end that descends is connected the other end node ground connection of the buffering that descends end relay k6 control end by the nearly switch sensor k2 of decline termination; One end node of the buffering that descends end relay k6 controlled terminal is connected with 80 volts of power supplys (10), and the other end node of the buffering that descends end relay k6 controlled terminal is connected with decline buffering signals port iDOWN; The anodal port iBP of instrument power is connected instrument power negative pole port iBN ground connection with 80 volts of power supplys (10); The instrument end first port iCANH and the control end first port CANH that communicates by letter that communicates by letter is connected, and the instrument end second port iCANL and the control end second port CANL that communicates by letter that communicates by letter is connected;
Control end positive source port BP is connected with 80 volts of power supplys (10), control end power cathode port BN ground connection;
Up switch (3) is the end micro-switch k3 that rises, end micro-switch k3 is connected 24 volts of power supplys (9) with control end rising signals port LIFT by rising, decline switch (7) is the end micro-switch k4 that descends, and end micro-switch k4 is connected 24 volts of power supplys (9) with control end dropping signal port DOWN by descending;
When the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends all are in off-state, and rise when holding micro-switch k3 to be in conducting state, vehicle control device (2) driving pump motor (1) namely makes fork truck praise goods with normal speed with normal speed work;
When the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends all are in off-state, and the nearly switch sensor k1 of rising termination and the end micro-switch k3 that rises are when being in conducting state, the moving pump motor (1) of vehicle control device (2) control is with deceleration work, namely slow down fork truck and praise the speed of goods, realize the function that rises and cushion;
When the nearly switch sensor k1 of rising termination, the nearly switch sensor k2 of decline termination and the end micro-switch k3 that rises all are in off-state, and descend when holding micro-switch k4 to be in conducting state, vehicle control device (2) driving pump motor (1) is with normal speed work, namely makes fork truck with the normal speed goods that descends;
When the nearly switch sensor k1 of rising termination and the end micro-switch k3 that rises all are in off-state, and the nearly switch sensor k2 of decline termination and the end micro-switch k4 that descends are when being in conducting state, the moving pump motor (1) of vehicle control device (2) control is with deceleration work, namely slow down the speed of fork truck decline goods, realize the function that descends and cushion.
3. the motor active reduction of speed buffer system for the observing and controlling of fork truck stroke as claimed in claim 1 is characterized in that control chip U1 also comprises 12 volts of output port V12, grounding ports GND, the first phase-detection port PHA and the second phase-detection port PHB; Goods hoist and the motor when dropping to end of travel initiatively the reduction of speed buffer system also be provided with motor speed sensor SS; Motor speed sensor SS is connected with 12 volts of output port V12, grounding ports GND, the first phase-detection port PHA, the second phase-detection port PHB, by motor speed sensor SS pump motor (1) operating rate information is passed to vehicle control device (2).
4. the motor active reduction of speed buffer system for the observing and controlling of fork truck stroke as claimed in claim 1 is characterized in that control chip U1 also comprises the first temperature detection port PHA and the second temperature level detection port PHB; Goods hoist and the motor when dropping to end of travel initiatively the reduction of speed buffer system also be provided with motor temperature sensor TS; Motor temperature sensor TS is connected with the second temperature level detection port PHB with the first temperature detection port PHA, gives vehicle control device (2) by motor temperature sensor TS with pump motor (1) operating temperature state transfer.
5. the motor active reduction of speed buffer system for the observing and controlling of fork truck stroke as claimed in claim 1 is characterized in that control chip U1 also comprises the first speed governing interface PPOT, the second speed governing interface NPOT and the 3rd speed governing interface CPOT; Goods hoist and the motor when dropping to end of travel initiatively the reduction of speed buffer system also be provided with speed governing sensor (8); Speed governing sensor (8) is a resistance-type speed governing sensor S, and resistance-type speed governing sensor S is connected between the first speed governing interface PPOT and the second speed governing interface NPOT, and the adjustable side of speed governing sensor S is connected with the 3rd speed governing interface CPOT; By exchanging the adjusting of speed sensors S resistance, realize rising, descend, rise the integrally-regulated of buffering and decline buffer speed.
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| CN104817044A (en) * | 2015-05-15 | 2015-08-05 | 安徽合力股份有限公司 | Lifting drive power control system for large-tonnage electric forklift portal |
| CN105584963A (en) * | 2015-12-16 | 2016-05-18 | 中国人民解放军空军勤务学院 | Safety control method for airport lifting, loading and unloading platform |
| CN105692501A (en) * | 2016-04-14 | 2016-06-22 | 意欧斯智能科技股份有限公司 | Reach type safety buffer fork lift truck easy for replacement of oil tank |
| CN113401845A (en) * | 2021-05-20 | 2021-09-17 | 安徽合力股份有限公司 | Electric forklift lifting segmented speed regulation device and control method thereof |
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| JP2001302194A (en) * | 2000-04-21 | 2001-10-31 | Tcm Corp | Cushioning attachment of forklift |
| CN201634382U (en) * | 2010-03-24 | 2010-11-17 | 杭州友高精密机械有限公司 | Forklift triple mast with buffer function |
| CN202107486U (en) * | 2011-05-16 | 2012-01-11 | 衡阳三创工程机械有限公司 | Smashing downward prevention lifting device system for fork truck |
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| CN104817044A (en) * | 2015-05-15 | 2015-08-05 | 安徽合力股份有限公司 | Lifting drive power control system for large-tonnage electric forklift portal |
| CN104817044B (en) * | 2015-05-15 | 2017-05-10 | 安徽合力股份有限公司 | Lifting drive power control system for large-tonnage electric forklift portal |
| CN105584963A (en) * | 2015-12-16 | 2016-05-18 | 中国人民解放军空军勤务学院 | Safety control method for airport lifting, loading and unloading platform |
| CN105692501A (en) * | 2016-04-14 | 2016-06-22 | 意欧斯智能科技股份有限公司 | Reach type safety buffer fork lift truck easy for replacement of oil tank |
| CN105692501B (en) * | 2016-04-14 | 2017-12-15 | 意欧斯智能科技股份有限公司 | A kind of shift-forward type safe buffering fork truck for easily changing fuel tank |
| CN113401845A (en) * | 2021-05-20 | 2021-09-17 | 安徽合力股份有限公司 | Electric forklift lifting segmented speed regulation device and control method thereof |
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