CN103352440B - The gate that a kind of cam structure drives - Google Patents
The gate that a kind of cam structure drives Download PDFInfo
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- CN103352440B CN103352440B CN201310314851.9A CN201310314851A CN103352440B CN 103352440 B CN103352440 B CN 103352440B CN 201310314851 A CN201310314851 A CN 201310314851A CN 103352440 B CN103352440 B CN 103352440B
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Abstract
The invention discloses the gate that a kind of cam structure drives, comprise frame, door-plate and motor, described motor is fixed in frame, described door-plate is hinged in frame, in the rotating shaft of described motor, cover has cam, described motor driving cam rotates, described cam be provided with the lock uint that is used for coordinating cam action between door-plate, described cam drives door-plate switch under lock uint cooperation.Gate used at present adopts linkage to drive door-plate folding mostly, reach desirable rate curve to door-plate need to gather way feedback device and control system, equipment cost is high, and bindiny mechanism installs imappropriate generation noise and affects the application life of mechanism.The present invention can realize door-plate folding speed and passenger's normal pass speed suitable perfect switch door speeds control by simple Electric Machine Control, and install simple, cost is low.<pb pnum="1" />
Description
Technical field
The present invention relates to gate device, the gate of particularly a kind of cam structure driving.
Background technology
Existing gate gate open often adopts linkage as the linkage of door-plate folding, when motor is by linkage drive door-plate folding, due to the drive characteristic of linkage, cause converting between the speed of the velocity of rotation of door-plate with motor output comparatively complexity, speeds control difficulty, in order to speed when realizing door-plate folding and pedestrian's speed of travel adapt, Negotiation speed feedback device and control system is needed to carry out speed governing process to motor, cause equipment cost high, and linkage is installed imappropriate easy generation noise and is affected the application life of mechanism.
Summary of the invention
The problem to be solved in the present invention is to provide the gate that a kind of cam structure drives, by improving the linkage between motor and door-plate, can realize door-plate folding speed and pedestrian's normal pass speed suitable perfect switch door speeds control, install simple, cost is low.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the gate that a kind of cam structure drives, comprise frame, door-plate and motor, described motor is fixed in frame, described door-plate is hinged in frame, the rotating shaft of described motor is socketed cam center of rotation, and described motor driving cam rotates, described cam be provided with the lock uint that is used for coordinating cam action between door-plate, described cam lock uint coordinate under drive door-plate switch.Rotated by motor direct-drive cam and drive door-plate switch, cam structure can change door-plate folding rate curve, as long as the shape of cam is applicable to realizing door-plate folding speed and the suitable desirable switch gate speed of pedestrian's normal pass speed, cam face required for different application occasion can be determined by experiment, eliminate original speed feedback device and control system, reduce equipment cost, easy for installation.
As preferably, described lock uint is that force closure mechanism comprises a spring I, and the two ends of described spring I are individually fixed in described door-plate and frame, and in door-plate moving process, described spring I pulls door-plate and described cam to keep close contact.The pulling force obtaining needed for door plate opening by using the elastic component such as such as extension spring or button spring, in the moving process of door-plate, spring I pulls to the power of cam to all the time one, door-plate, makes door-plate follow cam keep close contact and carry out opening and closing movement along with the rotation of cam.
As preferably, described cam and door-plate keep the contact surface of close contact is coated with wearing layer, and described wearing layer surface inserting is from moistening block, and the side of described door-plate and cam contact side is provided with wear-resisting flat board.By arranging wearing layer and certainly moistening block, decrease the wearing and tearing in cam rotation process.
As preferably, described lock uint is that shape locking mechanism comprises driven member, and described driven member one end is provided with roller, and described cam is provided with guide groove, and the roller of described driven member is placed in described guide groove, and the described driven member other end is fixed on door-plate.In cam rotation process, the distance of cam center of rotation and roller centre changes, and then drives door-plate folding, and roller and guide groove are rolling friction, and frictional force is less, decreases the wearing and tearing for guide groove.
As preferably, bottom described guide groove, be equipped with wear-resistant liner.Described wear-resistant liner abrasion resistance is good, and lubricity is good, decreases the wearing and tearing in cam rotation process equally.
As preferably, described frame is provided with the confinement block limiting described angular displacement of the cam, and cam is provided with the projection coordinated with confinement block.
As preferably, door-plate is in position of closing the door, and at the power drive station place of cam and door-plate, the velocity attitude angulation that described door-plate rotates to closing the door the pressure direction of cam and cam is right angle or acute angle.Power drive station is exactly produce the point of power by cam to door-plate, and because door-plate is in position of closing the door, at the power drive station place of cam and door-plate, the velocity attitude angulation that described door-plate rotates to closing the door the pressure direction of cam and cam is right angle or acute angle.Under above-mentioned right angle context, pedestrian rushes lock and exerts a force to door-plate, and the torque applied cam from power drive station is very little, cannot rotating cam, so door-plate cannot be opened.In above-mentioned acute angle situation, when having pedestrian to rush lock, to the torque that cam applies, cam is rotated further to rotation direction of closing the door from power drive station, but due to the restriction of confinement block, locked power is large, is difficult to door-plate to open, the state pedestrian that prevents from closing the door rushes lock.
As preferably, described door-plate is provided with position sensor, described position sensor connection control unit, and described control unit controls electric machine rotation.When there are wearing and tearing in cam, whether the folding of described position sensor induction door-plate puts in place, and the signal of induction is sent in control unit, described control unit sending controling instruction is to motor, control the rotation of motor, rotated by motor driving cam, realize for the adaptive equalization in cam wear situation, ensure that the door-plate position of the switch is constant.The adaptive equalization function of position sensor needs to coordinate with confinement block, compensates wearing and tearing.Described confinement block is positioned in frame corresponding to maximum offset angle place as the retention device that cam is last, when cam wear exceedes default maximum offset angle, confinement block prevents cam to be rotated further as stop, and now staff need replace cam part.
As preferably, between described cam and frame, be provided with spring II.Described spring II comprises button spring, saucerspring and extension spring etc., in system cut-off situation, by coordinating of spring II and lock uint, ensures cam normal rotation, thus door-plate is normally opened, ensure pedestrian's normal pass.
As preferably, described cam is eccentric wheel and perforate or described cam are eccentric wheel and perforate on described cam for spoke architecture or described cam non-complete cycle cam and on described cam.On described cam, perforate alleviates the quality of cam, reduces the power needed for motor driving cam.Adopt spoke architecture, while alleviating cam quality, ensure that its intensity.
After adopting technique scheme, tool of the present invention has the following advantages:
Drive door-plate folding by motor driving cam, realize completing door-plate folding speed and pedestrian's normal pass speed suitable perfect switch door speeds control by simple Electric Machine Control.Decrease equipment cost, install more simple, and take full advantage of power drive station pressure direction and cam in door-plate moving process and, to the geometric angle of the velocity attitude rotated of closing the door, increase door-plate locked power at closing time, effectively prevent pedestrian and rush lock.When wearing and tearing occur cam, realize position compensation by self adaptation, keep the invariant position of door-plate folding.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is the structural representation that the present invention adopts force-closed mechanism;
Fig. 2 is the structural representation that cam of the present invention adopts Shape closed mechanism;
Fig. 3 is that the present invention adopts the gate of Shape closed mechanism to close the door view;
Fig. 4 is that the present invention adopts Shape closed gate door opening state schematic diagram;
Fig. 5 is that the embodiment of the present invention 1 self compensation is closed the door view;
Fig. 6 is the embodiment of the present invention 1 self compensation door opening state schematic diagram;
Fig. 7 is that the embodiment of the present invention 2 self compensation is closed the door view;
Fig. 8 is the embodiment of the present invention 2 self compensation door opening state schematic diagram;
Fig. 9 is the cam schematic diagram of spoke architecture eccentric wheel type of the present invention;
Figure 10 is the cam structure schematic diagram of perforate eccentric wheel type of the present invention;
Figure 11 is the cam structure schematic diagram of the non-complete cycle of the present invention;
Figure 12 is the schematic diagram that the cam of eccentric wheel type coordinates with pivot link;
Figure 13 is the speed curve of output of Figure 12 cam B point;
Figure 14 is the geometric angle schematic diagram closing door state drive station pressure and cam tangential velocity direction.
Detailed description of the invention
As shown in Fig. 1-4 and Figure 14, the gate that a kind of cam structure drives, comprise frame 1, door-plate 2 and motor 3, described motor 3 is fixed in frame 1, described door-plate 2 is hinged in frame 1, the rotating shaft of described motor 3 is socketed cam 4 center of rotation 42, and described motor 3 driving cam 4 rotates, described cam 4 be provided with the lock uint that is used for coordinating cam action between door-plate 2, described cam lock uint coordinate under drive door-plate switch.Wherein, described lock uint can be force closure mechanism 51 or shape locking mechanism, no matter that force closure device or shape lock uint are when the rotation of cam 4, cam 4 and door-plate 2 can be made to keep close contact, specifically can see as shown in Figure 1, Fig. 5 and Fig. 6 also show the lateral plan of Fig. 1, described force closure mechanism comprises a spring I 51, the two ends of described spring I 51 are individually fixed in described door-plate 2 and frame 1, in door-plate 2 moving process, described spring I 51 pulls door-plate 2 and described cam 4 to keep close contact.Obtain door-plate 2 by using the elastic component such as such as extension spring or button spring to open the door required pulling force, in the moving process of door-plate 2, spring I 51 pulls to the power of cam 4 to all the time 2 one, door-plate, makes door-plate 2 keep close contact with cam 4 and carry out opening and closing movement along with the rotation of cam 4.Due to door-plate 2 and the close contact of cam 4, if the output speed of cam 4 can with pedestrian's normal pass speed suitable switch gate speed that door-plate 2 can be made to obtain being suitable for mutually.For reducing the wearing and tearing of cam 4 and force closure device 51 interoperation process cam 4 and door-plate 2, keep the contact surface of close contact is coated with wearing layer with door-plate 2 at described cam 4, described wearing layer surface inserting is from moistening block, and described door-plate 2 contacts side side with cam 4 is provided with wear-resisting dull and stereotyped 21.In the present embodiment, described wearing layer material can be brass, and described can be graphite from profit block, and described wear-resisting dull and stereotyped 21 can be plastic board, is certainly not limited to lifted.
As shown in Fig. 2-4 and Figure 14, described lock uint also can adopt shape locking mechanism, and described driven member one end is provided with roller 522, and described cam 4 is provided with guide groove 41, the roller 522 of described driven member 521 is placed in described guide groove 41, and described driven member 521 other end is fixed on door-plate 2.In cam 4 rotation process, cam 4 center of rotation 42 changes to the distance at roller 522 center, and then drives door-plate 2 folding, and roller 522 and guide groove 41 are rolling friction, and frictional force is less, decreases the wearing and tearing for guide groove 41.For reducing cam 4 and the process cam 4 of shape lock uint interoperation and the wearing and tearing of door-plate 2, bottom described guide groove 41, be equipped with wear-resistant liner.As the optimization to the present embodiment, described roller 522 is metal rolling bearing, decreases the wearing and tearing of roller 522.Described wear-resistant liner is PTFE(polytetrafluoroethylene (PTFE)) material, there is abrasion resistance and the good advantage of lubricity.
In the present embodiment, by the rotation of motor 3 driving cam 4, under the cooperation of lock uint, when motor 3 rotates clockwise, driving cam 4 rotates clockwise and is closed by door-plate 2; When motor 3 rotates counterclockwise, driving cam 4 rotates counterclockwise to be opened door-plate 2.As long as the shape of cam 4 is suitable, door-plate 2 folding speed and pedestrian's normal pass speed suitable perfect switch door speeds control can be realized, in the present embodiment, concrete principle, for eccentric angular velocity curve of output, see Figure 12, chooses B point position in figure, its angular velocity curve of output is see Figure 13, wherein transverse axis is the angle that eccentric wheel rotates, and the longitudinal axis is the angular velocity that B point exports, δ in the middle of curve
1fragment position, its angular velocity relative constancy, therefore can be limited in described δ by eccentric for the present invention slewing area
1in rotational angle range, wherein the application of B point is roller 522 and cam 4 contact point in the present invention, due to angular velocity relative constancy, so eccentric wheel center of rotation to B point distance change be also more uniform, as long as so select suitable eccentric shape just can meet speed required for door-plate switch, so eliminate original speed feedback device and control system, decrease equipment cost, install more simple.
Spring II 7 is provided with between described cam 4 and frame 1.Described spring II 7 comprises button spring, saucerspring and extension spring etc., in system cut-off situation, if door-plate 2 is in position of closing the door, cam 4 turning anticlockwise can be pulled by spring II 7 and then make door-plate 2 get back to opening position, pedestrian can be passed through normally, also prevent from crushing pedestrian when power-off.
Described frame 1 is provided with the confinement block limiting described cam 4 rotational angle, and cam 4 is provided with the projection coordinated with confinement block.When closing door state, there is pedestrian to rush lock by force, by the male cooperation on confinement block and cam 4, increase the locked power in door opening process, prevent pedestrian from being opened by force by door-plate.
The embodiment that described cam 4 can adopt is a lot, and such as in Fig. 10, cam 4 is eccentric wheel, and eccentric wheel is circular wheel, and easily manufactured, technique is simple.For minimizing motor 3 drives the energy consumption needed for door-plate 2, on described cam 4, perforate is to alleviate the quality of cam 4.When certain employing eccentric wheel is as cam, can be also spoke architecture as shown in Figure 9, spoke architecture not only alleviates the quality of cam 4, reduces the power consumption of motor 3, but also ensure that the intensity of cam 4.Certainly as shown in figure 11, described cam 4 also can be non-complete cycle cam, and the convex surface of described non-complete cycle cam 4 contacts with door-plate 2, due to non-complete cycle cam lighter weight, so motor 3 power consumption needed is also lower, and saves material, reduces costs.It may be noted that described cam 4 is not limited to above-mentioned lifted shape and structure, can be replaced by the cam 4 of other shapes with identical function.
Door-plate 2 is in position of closing the door, and at the power drive station place of cam 4 and door-plate 2, the velocity attitude angulation that the pressure direction of described door-plate 2 pairs of cams 4 and cam 4 rotate to closing the door is right angle or acute angle.Power drive station is exactly the point being produced power by cam 4 to door-plate 2, because door-plate 2 is in position of closing the door, at the power drive station place of cam 4 and door-plate 2, the velocity attitude angulation that the pressure direction of described door-plate 2 pairs of cams 4 and cam 4 rotate to closing the door is right angle or acute angle.Under above-mentioned right angle context, pedestrian rushes lock and exerts a force to door-plate 2, and the torque applied cam 4 from power drive station is very little, cannot rotating cam 4, so door-plate 2 also cannot be opened.And see in sharp angle α 1 situation described in Figure 14, when there being pedestrian to rush lock, to the torque that cam 4 applies, cam 4 is rotated further from power drive station to rotation direction of closing the door, but due to the restriction of confinement block (not shown inside cam), locked power is large, be difficult to door-plate 2 to open, prevent closing the descending people of door state and rush lock without ticket.
In door-plate 2 moving process, need end of door plate 2 folding position accurately to control, therefore need to be provided with position sensor 6 on described door-plate 2, described position sensor 6 connection control unit, described control unit controls motor 3 and rotates, if cam 4 weares and teares in rotation process, carry out adaptive equalization by motor 3 driving cam 4, keep door-plate 2 folding invariant position.Above-mentioned adaptive equalization detailed process be first by control unit according to switching door demand, sending controling instruction in motor 3 driving cam 4 counterclockwise or rotate clockwise, drive door-plate 2 folding, when there are wearing and tearing in cam 4, whether the folding that door-plate 2 responded to by described position sensor 6 puts in place, and the door-plate position signalling of induction is sent in control unit, described control unit controls the rotation of motor 3 to motor 3 according to the door-plate position signalling sending controling instruction of position sensor 6, rotated by motor 3 driving cam 4, stop operating until control unit receives the signal that described door-plate 2 switch puts in place, ensure that door-plate 2 position of the switch puts in place all the time.When gate power-off, door-plate 2 is opened by cam 4 under the effect of spring II 7 pulling force, ensures current.The self-compensating function of position sensor needs to coordinate with confinement block, described confinement block is positioned in frame corresponding to maximum offset angle place as the retention device that cam is last, when cam wear exceedes default maximum offset angle, confinement block prevents being rotated further of cam 4 as stop, and now staff need replace the cam of wearing and tearing.In the present embodiment, described control unit adopts the motion control chip of Japanese NOVA MCX314 model.
The gate that described cam structure drives has symmetrical two, forms the gate passage of walk.
Embodiment 1:
As seen in figs. 5-6, described position sensor comprises photoelectric encoder 61, and described photoelectric encoder 61 comprises photoelectric code disk, and described photoelectric code disk is placed on door-plate 2 and rotates with the folding of door-plate 2 with the hinged end of frame 1.Preset the angle turned under door-plate 2 switch gate state in control unit, the angle turned in real time by photoelectric code disk detection door-plate 2, and the angle information that the door-plate 2 detected turns over is sent in control unit.If when there are wearing and tearing in cam 4, door-plate 2 cannot reach the default angle of switch gate state, rotated by motor 3 driving cam 4 and be rotated further, stop operating until control unit receives the signal that described door-plate 2 switch puts in place, keep the position of door-plate 2 switch gate to put in place all the time.Described photoelectric encoder 61 transmission efficiency is high, and adjustable speed scope is large, and structure is simple, easy to maintenance.
Embodiment 2:
As Figure 7-8, described position sensor 6 comprises travel switch 62, described frame 1 is provided with two gag lever posts 11, and described gag lever post 11 coordinates end of door plate 2 folding position to carry out spacing with described travel switch 62.Gag lever post 11 is provided with in enabling and position of closing the door, the signal that whether puts in place is sent in control unit by travel switch 6, when travel switch 62 contacts described gag lever post 11, travel switch 62 is sent to bit instruction in control unit, described control unit sending controling instruction is in motor 3, and motor 3 stops operating.When there are wearing and tearing in cam 4, control unit cannot receive the signal that door-plate 2 switch puts in place, be rotated further by motor 3 driving cam 4, stop operating until control unit receives the signal that described door-plate 2 switch puts in place, keep door-plate 2 switch gate position to put in place all the time.Described mode positioning precision is high, and sensitivity is strong.Described travel switch 62 can be replaced by Hall element, corresponding gag lever post 11 need replace with shaft, when in cam 4 rotation process, Hall element produces Hall effect near shaft, Hall element is sent to bit instruction in control unit, the step that described Hall element and shaft complete the adaptive equalization that door-plate 2 folding puts in place is identical with travel switch 62, does not repeat them here.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (5)
1. the gate of a cam structure driving, comprise frame (1), door-plate (2) and motor (3), described motor (3) is fixed in frame (1), described door-plate (2) is hinged in frame (1), it is characterized in that: the rotating shaft of described motor (3) is socketed cam (4) center of rotation, described motor (3) driving cam (4) rotates, the lock uint that one is used for coordinating cam action is provided with between described cam (4) with door-plate (2), described cam (4) drives door-plate (2) switch under lock uint coordinates, described lock uint is that force closure mechanism comprises a spring I (51), the two ends of described spring I (51) are individually fixed in described door-plate (2) and frame (1), in door-plate (2) moving process, described spring I (51) pulls door-plate (2) and described cam (4) to keep close contact, described cam (4) and door-plate (2) keep the contact surface of close contact is coated with wearing layer, described wearing layer surface inserting is from moistening block, described door-plate (2) contacts side side with cam (4) is provided with wear-resisting flat board (21), spring II (7) is provided with between described cam (4) and frame (1).
2. the gate of cam structure driving according to claim 1, is characterized in that: described frame (1) is provided with the confinement block of restriction described cam (4) rotational angle, and cam is provided with the projection coordinated with confinement block.
3. the gate of cam structure driving according to claim 2, it is characterized in that: door-plate (2) is in position of closing the door, at the power drive station place of cam (4) and door-plate (2), the velocity attitude angulation that described door-plate (2) rotates to closing the door the pressure direction of cam (4) and cam (4) is right angle or acute angle.
4. the gate of cam structure driving according to claim 2, is characterized in that: described door-plate (2) is provided with position sensor (6), described position sensor (6) connection control unit, and described control unit controls motor (3) and rotates.
5. the gate that drives of cam structure according to claim 1, is characterized in that: described cam (4) for eccentric wheel and for spoke architecture or described cam (4) for non-complete cycle cam and on described cam perforate or described cam (4) for eccentric wheel and perforate on described cam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310314851.9A CN103352440B (en) | 2013-07-23 | 2013-07-23 | The gate that a kind of cam structure drives |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310314851.9A CN103352440B (en) | 2013-07-23 | 2013-07-23 | The gate that a kind of cam structure drives |
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| CN103352440A CN103352440A (en) | 2013-10-16 |
| CN103352440B true CN103352440B (en) | 2015-11-04 |
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| CN201310314851.9A Active CN103352440B (en) | 2013-07-23 | 2013-07-23 | The gate that a kind of cam structure drives |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556585B (en) * | 2013-11-18 | 2016-04-20 | 浙江众合科技股份有限公司 | A kind of shearing type door gate machine used transmission mechanism |
| CN106765979B (en) * | 2017-01-05 | 2019-11-26 | 广东美的制冷设备有限公司 | The door-plate control method and device of air conditioner and air conditioner |
| CN108729383B (en) * | 2018-06-27 | 2023-12-29 | 陕西奥特门业有限公司 | Crank advertisement road gate driven by gear set |
| CN112474181A (en) * | 2020-12-09 | 2021-03-12 | 王侠 | Nut production method |
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| CN102108686A (en) * | 2010-12-17 | 2011-06-29 | 上海华铭智能终端设备有限公司 | Shear type door arresting gear capable of regulating arresting width of fan doors |
| CN202298511U (en) * | 2011-10-13 | 2012-07-04 | 南京熊猫机电仪技术有限公司 | Wing gate mechanism driven by cam |
| CN203361051U (en) * | 2013-07-23 | 2013-12-25 | 浙江众合机电股份有限公司 | Gate driven by cam structure |
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| CN201110102Y (en) * | 2007-10-26 | 2008-09-03 | 上海华铭智能终端设备有限公司 | Wide channel shear type door apparatus of automatic checking machine |
| CN101994460A (en) * | 2009-08-20 | 2011-03-30 | 上海华铭智能终端设备有限公司 | Fan-shaped door blocking mechanism for ticket-checking mechanism |
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