CN105507729A - Nut component of automatic door driving system - Google Patents
Nut component of automatic door driving system Download PDFInfo
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- CN105507729A CN105507729A CN201610046681.4A CN201610046681A CN105507729A CN 105507729 A CN105507729 A CN 105507729A CN 201610046681 A CN201610046681 A CN 201610046681A CN 105507729 A CN105507729 A CN 105507729A
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- automatic door
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Abstract
The invention discloses a nut component of an automatic door driving system. The nut component comprises a transmission rack, a nut sleeving a screw rod and a follow-up part fixed on the nut, the nut is mounted in the transmission rack which is connected with a door mechanism, a mechanism for limiting a range in which the nut rotates along the screw rod, and the screw rod drives the nut component to move back and forth along the axial direction of the screw rod. Compared with the prior art with a mode that an existing nut component needs to be matched with a sliding groove, the nut component has the advantages that the sliding groove is not needed, so that the nut component is simpler in structure and smoother in running; few parts are used to form the whole nut component, so that the nut component is easy to machine, low in dead weight and needless of overlarge mounting space.
Description
Technical field
The present invention relates to automatic control system field, specifically a kind of nut assembly of automatic door drive system.
Background technology
Screw drives control system, is generally electric motor driven screw, drives the nut assembly be arranged on screw rod to move back and forth, and then drives the controlled device be connected with nut assembly.Typically, screw drives control system more application is in Rail Door, electric door field, and it also has locking and unlocking function simultaneously.Usually be applied to the screw drives control system in above-mentioned field, by electromagnetic lock, nut assembly locked, and then the function that realization is locked a door.The screw drives control system of this form, electromagnetic lock must be energized the stability that guarantee is locked a door at any time, if after electromagnetic lock power-off, then can there is door and automatically open risk, and enter line-locked structure with mechanical lock opposite house in prior art, mostly there is baroque problem, as the system formed primarily of frame for movement, for realizing good locking effect, the structure of nut assembly is usually comparatively complicated, special chute is needed to coordinate, complex structure can bring poor reliability, from great, the problem such as wayward, especially when being applied to public transport field, the personal safety of passenger can be threatened during inefficacy.
Summary of the invention
Goal of the invention: the nut assembly of a kind of automatic door drive system provided by the invention, to solve in prior art, the problem that the power-off back door existing for door system of applying electromagnetic lock can be opened automatically, and the nut assembly complex structure existing for door system of application machine lock, special chute is needed to coordinate, from great, the problem such as wayward.
Technical scheme: for solving the problems of the technologies described above, the nut assembly of a kind of automatic door drive system of the present invention, comprises gear frame, the nut be sheathed on screw mandrel, the follow-up unit be fixed on nut; Nut is arranged in gear frame, gear frame connection door mechanism; Have in described gear frame and limit the mechanism of nut with screw mandrel rotational angle range, screw mandrel drive nut assembly is along screw mandrel axially reciprocating
Further, described gear frame has the installation portion be connected with controlled device, installation portion upwards extends to form the nut installation portion be made up of four root posts, nut is arranged in the space of four root posts formations, and the two root post tops wherein towards crossbeam side are provided with the spacer pin of restriction nut with screw mandrel rotational angle range.
Further, the external diameter of described nut is greater than the distance between two heel posts.
Further, described nut is made up of inner ring and outer ring, and inner ring coordinates with wire rod thread, and outer ring sleeve is on inner ring and cooperatively interacted by anti-slop serrations, and outer ring is outward extended with the mount pad of follow-up unit towards crossbeam side.
Further, described mount pad has a screw, and follow-up unit has a screw rod, and screw rod is screwed in screw, and follow-up unit is fixedly connected with nut.
Further, described follow-up unit is roller.
Further, the both sides, outer ring of described nut lay respectively between corresponding adjacent upright posts, and screw mandrel drives gear frame to move axially along screw mandrel by nut outer ring.
Further, the elastomeric element applying twisting resistance to nut is also comprised in described nut assembly.
Further, described elastomeric element is torsion spring, and one end rides against on gear frame, and the other end rides against on nut.
Further, described nut outer ring is outward extended with block, and one end rides against on this block.
Beneficial effect: the nut assembly of a kind of automatic door drive system of the present invention, the form matched with chute is needed relative to nut assembly of the prior art, do not need chute, therefore structure is more succinct, run also more steady, because the number of components forming its entirety is few, be therefore easy to processing and conduct oneself with dignity little, not needing excessive installing space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the combining structure schematic diagram of nut assembly and gear frame;
Fig. 3 is gear frame structural representation;
Fig. 4 is nut structure schematic diagram;
The structural representation of the double open plug door that Fig. 5 applies for the present invention;
Fig. 6 is the assembled state partial schematic diagram of fixed mount and crossbeam;
Fig. 7 is the partial schematic diagram that the left part of Fig. 6 hides mounting bracket;
Fig. 8 is the assembled state partial schematic diagram of crossbeam, mounting bracket, hanger, long guide pillar and synchronizing bar;
Fig. 9 is the position view under door closure state between guide and limit bar and limiting plate;
Figure 10 is the position view under a state of opening between guide and limit bar and limiting plate;
Figure 11 is the first embodiment of guiding lock dog;
Figure 12 is the second embodiment of guiding lock dog;
Figure 13 be guiding lock dog and position-limit mechanism, follow-up unit mated condition schematic diagram;
Figure 14 is man-operated mechanism structural representation;
Figure 15 is structural representation crossbeam comprising link gear.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
The nut assembly of automatic door drive system as shown in Figures 1 to 4, comprise nut 31 and follow-up unit 7 rigidly connected with nut 31, nut 31 and screw mandrel 2 form screw pair, gear frame 9 is installed outside nut 31, can be movable relatively between gear frame 9 and nut 31, gear frame 9 connection door mechanism; Torsion spring 10 is provided with between gear frame 9 and nut 31, torsion spring 10 applies pressure for supporting to follow-up unit 7 with gear frame 9, gear frame 9 connects controlled device 6, in a particular application, this controlled device 6 can be the Electric plug sliding door of subway in field of track traffic or the door leaf of sliding door system, or the electric door of the vehicle such as big bus.And in gear frame 9, also have restriction nut 31 with the mechanism of screw mandrel 2 rotational angle range, this mechanism is a space, follow-up unit 7 on nut 31 moves up and down with nut 31 within this space, the top and bottom in this space define the slewing area of follow-up unit 7, and then define slewing area when nut 31 moves with screw mandrel 2.
Gear frame 9 has the installation portion 91 be connected with controlled device 6, installation portion 91 upwards extends to form the nut installation portion be made up of four root posts 92, nut 31 is arranged in the space of four root posts 92 formations, two root post 92 tops of side are provided with and limit the spacer pin 12 of nut 31 with screw mandrel 2 rotational angle range wherein, therefore, rotation space when nut 31 rotates with screw mandrel 2 is defined between the bottom of this two root post 92 and spacer pin 12, spacer pin 12 is above-mentioned upper end, and between two root posts 92, the bottom in space is then lower end.The external diameter of nut 31 is greater than the distance between two heel posts 92, therefore nut 31 is limited in the space between two heel posts 92, when nut 31 moves, by column 92 applied thrust to not homonymy, gear frame 9 is driven to move with nut 31, nut 31 is made up of inner ring and outer ring, inner ring coordinates with screw mandrel, outer ring sleeve is on inner ring and cooperatively interacted by anti-slop serrations, outer ring is outward extended with the mount pad of follow-up unit 7, and mount pad has a screw, and follow-up unit 7 has a screw rod, screw rod is screwed in screw, and follow-up unit 7 is fixedly connected with nut 31.Follow-up unit 7 can adopt roller, may also be the parts that other types smooth surface running resistance is little, as ganoid sliding shoe etc.Also comprise in nut assembly 3 and apply twisting resistance torsion spring 10 to nut 31, one end rides against on gear frame 9, the other end rides against on nut 31, torsion spring adopts internal diameter to be greater than the model with the screw mandrel diameter of nut screw connection, and be enclosed within screw mandrel outside, nut 31 outer ring is outward extended with block 32, and one end rides against on this block 32.
The nut assembly of automatic door drive system of the present invention, can be applicable to stopping sliding door or the sliding door system in track communicating door field, be applied to the mode of double open plug door system below in conjunction with it, the present invention is described in detail.
As shown in Figure 5, the double open plug door system that the present invention applies, comprise fixed mount 40, the plug be arranged on fixed mount 40 draw track 41, crossbeam 11 and the driving mechanism that is arranged on for driving a side door to move back and forth on crossbeam 11, coordinate with driving mechanism for drawing the link gear that another side door moves back and forth; Driving mechanism connects initiatively sleeve assembly 6, initiatively sleeve assembly 6 is by link gear traction driven socket assembly 61, link gear drive drive the door 48 of initiatively sleeve assembly 6 and driven socket assembly 61 door 48 in opposite directions or opposing motion, initiatively sleeve assembly 6 is connected two side doors 48 with driven socket assembly 61 respectively by taking door frame; Driven socket assembly 61 is also provided with and fills in the roller drawing track 41 to match; At crossbeam two ends difference mounting hung rack 49, parallel between hanger 49 two long guide pillars 50 are housed, initiatively sleeve assembly 6 is set on different long guide pillars 50 from driven socket assembly 61, and can move back and forth on the long guide pillar 50 of each correspondence, each long guide pillar 50 two ends are through hanger 49, and in end, rolling member is installed, rolling member is device or the component that bearing etc. has rolling function, fixed mount 40 arranges one group of mounting bracket 43, and rolling member matches with the slideway be arranged on inside mounting bracket 43.Can also arrange one between mounting bracket 43 can the synchronizing bar 47 of axial rotation, and synchronizing bar 47 two ends are fixedly connected with transmission arm 64, and each transmission arm 64 is flexibly connected with hanger 49 by connecting rod.As shown in figure 15, link gear comprises and is arranged on roller on each hanger 49 respectively and around the traction element 63 on roller, traction element 63 forms closed loop between the rollers 27 and 28, this closed loop traction element 63 while be connected with active sleeve assembly 6, another side is connected with driven socket assembly 61, and traction element 63 can be Timing Belt, wire rope, driving-chain etc., during use driving-chain, roller is replaceable is gear.
As shown in Fig. 7 to Figure 14, driving mechanism comprises the motor 1 be fixed on crossbeam 11, guiding lock dog 51 and position-limit mechanism 4, and motor 1 is connected with controller; The axle connection wire rod 2 of motor 1, completely on screw mandrel 2 is configured with nut assembly 3; Nut assembly 3 comprises nut 31 and follow-up unit 7 rigidly connected with nut 31, and nut 31 and screw mandrel 2 form screw pair, be provided with gear frame 9, can be movable relatively between gear frame 9 and nut 31 outside nut 31; Torsion spring 10 is provided with between gear frame 9 and nut 31, torsion spring 10 applies pressure for supporting to follow-up unit 7 with gear frame 9, gear frame 9 connects initiatively sleeve assembly 6, screw mandrel 2 rotates forward in process, drive nut 31 and follow-up unit 7 to move simultaneously, after moving to follow-up unit 7 lock dog 51 contact with guiding, follow-up unit 7 moves downwardly to position-limit mechanism 4 in leading of guiding lock dog 51 upper surface and is stopped by this position-limit mechanism 4, and follow-up unit 7 enters the space between the side of guiding lock dog 51 and position-limit mechanism 4 with screw mandrel 2 rotation and is locked; When screw mandrel 2 rotates backward, follow-up unit 7 rotates backward to the restriction departing from guiding lock dog 51 with screw mandrel 2 and unlocks, then along screw mandrel 2 axially-movable.Guiding lock dog 51 has one towards the side of position-limit mechanism 4, forms the space that can fall into follow-up unit 7 between this side and position-limit mechanism 4.Side is the inclined-plane that can limit follow-up unit 7 ejection, angle between side and vertical plane is 0-10 °, and in this angular range, guiding lock dog 51 can apply active force to follow-up unit 7, follow-up unit 7 can not be caused again by locked problem because angle is excessive, this angle is preferably 3 °.And in gear frame 9, also have restriction nut 31 with the mechanism of screw mandrel 2 rotational angle range, this mechanism is a space, follow-up unit 7 on nut 31 moves up and down with nut 31 within this space, the top and bottom in this space define the slewing area of follow-up unit 7, and then define slewing area when nut 31 moves with screw mandrel 2.
As shown in Figure 7, as the first embodiment, guiding lock dog 51 has the smooth upper surface of a guiding follow-up unit 7 to position-limit mechanism 4 movement, in follow-up unit 7 motion process, when it does not contact with guiding lock dog 51 upper surface, be in free state, namely the lower end in the space that above-mentioned restriction follow-up unit 7 rotates is positioned at, the torsion spring 10 be arranged between nut 31 and gear frame 9 can be set to be in relaxation state or less compressive state, twisting resistance is not applied to nut 31, or apply less twisting resistance to nut 31, can make nut 31 in drive follow-up unit 7 runs, more steady.When follow-up unit 7 is by guiding lock dog 51 upper surface, torsion spring 10 is compressed, torsion is applied to nut 31, thus, ensure that follow-up unit 7 can after touching limiting plate 13, rotated the twisting resistance driving nut 31 and torsion spring 10 to apply by screw mandrel 2, successfully can enter the space between limiting plate 13 and guiding lock dog 51.
As shown in Figure 8, as the second embodiment, crossbeam 11 is also installed with the slide rail 5 for follow-up unit 7 movement, this slide rail 5 connects with guiding lock dog 51 and seamlessly transits with the upper surface of guiding lock dog 51, be specially, guiding lock dog 51 is arranged on slide rail 5 one end near limiting component, and has the upper surface of level, and connecting with the upper surface of slide rail 5 becomes an integral level surface.After slide rail 5 is set, namely follow-up unit 7 contacts with slide rail 5 upper surface and can move back and forth on this upper surface, under this setup, follow-up unit 7 is between the top and bottom in the space that above-mentioned restriction follow-up unit 7 rotates, not with upper end or lower end in contact, torsion spring 10 now between nut 31 and gear frame 9 is in compressive state, after follow-up unit 7 moves to and contacts with limiting plate 13, screw mandrel 2 rotates the twisting resistance of power and torsion spring 10 pairs of nuts 31 applyings driving nut 31 to rotate, ensure that follow-up unit 7 can enter the space between limiting plate 13 and guiding lock dog 51 smoothly.Slide rail 5 is set, follow-up unit 7 is moved under the restriction of slide rail 5, the stationarity that nut assembly 3 moves can be increased further.
As shown in Fig. 9 to Figure 12, gear frame 9 has the installation portion 91 be connected with active sleeve assembly 6, installation portion 91 upwards extends to form the nut installation portion be made up of four root posts 92, nut 31 is arranged in the space of four root posts 92 formations, two root post 92 tops wherein towards crossbeam 11 side are provided with the spacer pin 12 of restriction nut 31 with screw mandrel 2 rotational angle range, therefore, rotation space when nut 31 rotates with screw mandrel 2 is defined between the bottom of two root posts 92 of spacer pin 12 and crossbeam 11 side and spacer pin 12, spacer pin 12 is above-mentioned upper end, between two root posts 92, the bottom in space is then lower end.The external diameter of nut 31 is greater than the distance between two heel posts 92, therefore nut 31 is limited in the space between two heel posts 92, when nut 31 is along screw mandrel 2 axially-movable, by column 92 applied thrust to not homonymy, gear frame 9 is driven to move with nut 31, nut 31 is made up of inner ring and outer ring, inner ring and screw mandrel 2 threaded engagement, outer ring sleeve is on inner ring and cooperatively interacted by anti-slop serrations, outer ring is outward extended with the mount pad of follow-up unit 7 towards crossbeam 11 side, mount pad has a screw, follow-up unit 7 has a screw rod, screw rod is screwed in screw, follow-up unit 7 is fixedly connected with nut 31.Follow-up unit 7 can adopt roller, may also be the parts that other types smooth surface running resistance is little, as ganoid sliding shoe etc.Roller is adopted to arrange in pairs or groups with guiding lock dog 51, in the running resistance by nut assembly 3 can be reduced during guiding lock dog 51 surface to greatest extent, the use stationarity of Hoisting System.The both sides, outer ring of nut 31 lay respectively between corresponding adjacent upright posts 92, and screw mandrel 2 drives gear frame 9 to move axially along screw mandrel 2 by nut 31 outer ring.Also comprise in nut assembly 3 and apply twisting resistance torsion spring 10 to nut 31, one end rides against on gear frame 9, the other end rides against on nut 31, torsion spring adopts internal diameter to be greater than the model of screw mandrel 2 diameter, be enclosed within screw mandrel 2 outside, nut 31 outer ring is outward extended with block 32, and one end rides against on this block 32.
As shown in figure 13, position-limit mechanism 4 comprises a limiting plate 13 be arranged on crossbeam 11, this limiting plate 13 has the side towards guiding lock dog 51, this side forms the space that can fall into follow-up unit 7 with the side of guiding lock dog 51, limiting plate 13 is rotatably installed on crossbeam 11 by bearing pin 14, this limiting plate 13 has the riser 26 of bending towards guiding lock dog 51 side, the angle of this riser 26 manufactures according to during practical application, be specially, when follow-up unit 7 does not contact with riser 26, the upper semisection of this bending riser 26 is vertical, lower semisection is to the direction bending of guiding lock dog 51, and after follow-up unit 7 contacts with riser 26, limiting plate 13 is driven to rotate, after rotation stops, lower semisection becomes vertical direction, upper semisection is to the direction bending of guiding lock dog 51, the bending degree of riser 26, set according to the rotational angle of limiting plate 13, rotational angle as limiting plate 13 is α, so between the upper semisection of riser 26 and lower semisection, the angle at folded obtuse angle is 180 ° of-α, also back-moving spring is provided with between limiting plate 13 and bearing pin 14, back-moving spring can be torsion spring, torsion spring set is on bearing pin 14, its one end is fixed on limiting plate 13, the other end is fixed on crossbeam 11, and limiting plate 13 can pass through its edge triggered signal switch 15 in spinning movement, limiting plate 13 has waist hole 27, crossbeam 11 is provided with spacer pin 19, spacer pin 19 stretches into restriction limiting plate 13 anglec of rotation in waist hole 27.
As shown in Figure 5, Figure 6, fixed mount 40 is also provided with guide and limit bar 42, its one end is fixedly connected with fixed mount 40, and the other end is free end; Limiting plate 13 is rotatably installed on crossbeam 11, and when closing under the drive of two side doors 48 at driving mechanism and link gear, limiting plate 13 rotates until stop the free end of guide and limit bar 42, limits a trailed side door travelling backwards; When opening under the drive of two side doors 48 at driving mechanism and link gear, limiting plate 13 reverses and removes the stop to guide and limit bar 42 free end, a trailed side door is back moved, after limiting plate 13 reverses and removes the stop to guide and limit bar 42 free end, guide and limit bar 42 approaches limiting plate 13 edge, and restriction limiting plate 13 rotates.
As Figure 13, shown in Figure 14, position-limit mechanism 4 also comprises a man-operated mechanism, this man-operated mechanism comprises one and is arranged on fixed support 20 on crossbeam 11 and a travel(l)ing rest 17 be arranged on bearing pin 14, between two supports, back-moving spring is installed, back-moving spring can be torsion spring, torsion spring set is at bearing pin 14, its one end is fixed on fixed support 20, the other end is fixedly connected with travel(l)ing rest 17, follow-up unit 7 can be transferred to by travel(l)ing rest 17 in rotary course from the space between guiding lock dog 51 and position-limit mechanism 4, be specially, the slide block 21 of a bending can be set in travel(l)ing rest 17 bottom, it transfers to by slide block 21 below follow-up unit 7 from the space between guiding lock dog 51 and position-limit mechanism 4, travel(l)ing rest 17 drives by manual stay cord 8 and rotates around bearing pin 14, manual stay cord 8 is connected with unlock switch, unlock switch can be a manual knob, manual stay cord 8 can be pulled during rotation.In actual applications, it is actually arranged on position that such as subway inwall etc. can make people easily touch.When turn unlock switch drives travel(l)ing rest 17 to rotate for center of rotation with bearing pin 14, slide block 21 promotes follow-up unit 7 and moves upward.Travel(l)ing rest 17 and limiting plate 13 are arranged on same bearing pin 14, and the two can not be interfered each other, and integrated level is high, can save installing space.
A kind of double open plug door system of the present invention, can be divided into following motion process and state:
1, electronicly to lock a door: controller sends signal to motor 1, motor 1 is made to drive screw mandrel 2 to rotate, screw mandrel 2 drives follow-up unit 7 axially to move to position-limit mechanism 4 along screw mandrel 2 by nut assembly 3, when follow-up unit 7 touches guiding lock dog 51, move downwardly to limiting plate 13 leading of guiding lock dog 51 upper surface and stopped by this limiting plate 13, follow-up unit 7 enters the space between the side of guiding lock dog 51 and limiting plate 13 with screw mandrel 2 rotation and is locked, in the process, limiting plate 13 rotates, trigger the signaling switch 15 arranged thereunder, after signaling switch 15 sends to controller the signal that puts in place, controller controls motor 1 stall, complete and lock a door.Now, it is anterior that limiting plate 13 is blocked in guide and limit bar 42 free end, and when link gear lost efficacy, the door due to active sleeve assembly 6 had been directed to lock dog locking, therefore can not be opened easily.And if there is no guide and limit bar 42, the door of driven socket assembly 61 side then can be manually opened, and drives whole crossbeam to carry out plug to pull work.Be provided with guide and limit bar 42, plug pulls work namely to be stopped, even if therefore manually pull the door of driven socket assembly 61 side, can not open.
2, electric open-door: controller sends signal to motor 1, motor 1 is made to drive screw mandrel 2 to rotate backward, follow-up unit 7 rotates backward to the restriction departing from guiding lock dog 51 with screw mandrel 2 and unlocks, and depart from limiting plate 13, limiting plate 13 is return under the effect of torsion spring, remove the stop to guide and limit bar 42, triggering signal switch 15 sends unlocking signal to controller, and then limiting component is along screw mandrel 2 axially-movable.When follow-up unit 7 moves to screw mandrel 2 other end, motor 1 stall, completes enabling, and now guide and limit bar 42 is in the top of limiting plate 13 and can limits limiting plate 13 reversed turning, avoids false touch signaling switch.
3, manually lock a door: manual actuation is sleeve assembly 6 initiatively, nut assembly 3 is axially moved to position-limit mechanism 4 at screw mandrel 2, and now screw mandrel 2 is passive rotation.When follow-up unit 7 touches guiding lock dog 51, move downwardly to limiting plate 13 leading of guiding lock dog 51 upper surface and stopped by this limiting plate 13, follow-up unit 7 enters the space between the side of guiding lock dog 51 and limiting plate 13 with screw mandrel 2 rotation and is locked, in the process, limiting plate 13 rotates, and triggers the signaling switch 15 arranged thereunder, after signaling switch 15 sends to controller the signal that puts in place, controller controls motor 1 stall, completes and locks a door.
4, open Door by Hand: during the locked door condition of both sides, by rotating unlock switch, make manual stay cord 8 pull travel(l)ing rest 17 to do clockwise direction around bearing pin 14 to rotate, the slide block 21 of travel(l)ing rest 17 is stirred from bottom by follow-up unit 7, follow-up unit 7 is made to leave latched position, torsion spring drives limiting plate 13 to rotate clockwise around bearing pin 14 simultaneously, and triggering signal switch 15, after unclamping unlock switch, travel(l)ing rest 17 rotates to original position under the driving of back-moving spring, then manual actuation controlled device 6, nut assembly 3 is axially moved to the direction away from position-limit mechanism 4 at screw mandrel 2, realization opens Door by Hand.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a nut assembly for automatic door drive system, is characterized in that: comprise gear frame (9), the nut (31) be sheathed on screw mandrel (2), the follow-up unit (7) be fixed on nut (31); Nut (31) is arranged in gear frame (9), gear frame (9) connection door mechanism; Restriction nut (31) is had with the mechanism of screw mandrel (2) rotational angle range in described gear frame (9).Screw mandrel (2) drive nut assembly (3) is along screw mandrel (2) axially reciprocating.
2. the nut assembly of automatic door drive system according to claim 1, it is characterized in that: described gear frame (9) has the installation portion (91) be connected with controlled device (6), installation portion (91) upwards extends to form the nut installation portion be made up of four root posts (92), nut is arranged in the space that four root posts (92) form, and is provided with wherein limits the spacer pin (12) of nut (31) with screw mandrel (2) rotational angle range towards two root posts (92) top of crossbeam (11) side.
3. the nut assembly of automatic door drive system according to claim 2, is characterized in that: the external diameter of described nut (31) is greater than the distance between two heel posts (92).
4. the nut assembly of automatic door drive system according to claim 2, it is characterized in that: described nut (31) is made up of inner ring and outer ring, inner ring and screw mandrel (2) threaded engagement, outer ring sleeve is on inner ring and cooperatively interacted by anti-slop serrations, and outer ring is outward extended with the mount pad of follow-up unit (7) towards crossbeam (11) side.
5. the nut assembly of automatic door drive system according to claim 4, it is characterized in that: described mount pad has a screw, follow-up unit (7) has a screw rod, and screw rod is screwed in screw, and follow-up unit (7) is fixedly connected with nut (31).
6. the nut assembly of the automatic door drive system according to any one of claim 1-5, is characterized in that: described follow-up unit (7) is roller.
7. the nut assembly of automatic door drive system according to claim 4, it is characterized in that: the both sides, outer ring of described nut (31) lay respectively between corresponding adjacent upright posts (92), and screw mandrel (2) drives gear frame (9) to move axially along screw mandrel (2) by nut (31) outer ring.
8. the nut assembly of automatic door drive system according to claim 1 and 2, is characterized in that: also comprise the elastomeric element (10) applying twisting resistance to nut (31) in described nut assembly (3).
9. the nut assembly of automatic door drive system according to claim 8, is characterized in that: described elastomeric element (10) is torsion spring, and one end rides against on gear frame (9), and the other end rides against on nut (31).
10. the nut assembly of automatic door drive system according to claim 9, is characterized in that: described nut (31) outer ring is outward extended with block (32), and one end rides against on this block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610046681.4A CN105507729B (en) | 2016-01-22 | 2016-01-22 | The nut assembly of automatic door drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610046681.4A CN105507729B (en) | 2016-01-22 | 2016-01-22 | The nut assembly of automatic door drive system |
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| Publication Number | Publication Date |
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| CN105507729A true CN105507729A (en) | 2016-04-20 |
| CN105507729B CN105507729B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610046681.4A Active CN105507729B (en) | 2016-01-22 | 2016-01-22 | The nut assembly of automatic door drive system |
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| CN (1) | CN105507729B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110273614A (en) * | 2019-05-21 | 2019-09-24 | 佛山市磁家有导科技有限公司 | A kind of safety track magneto with clutch |
| WO2021190125A1 (en) * | 2020-03-27 | 2021-09-30 | 青岛海尔电冰箱有限公司 | Automatic door opening device and refrigerator |
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| CN204645944U (en) * | 2015-03-09 | 2015-09-16 | 法中轨道交通运输设备(上海)有限公司 | A kind of swing type sliding plug door mechanism |
| CN205577702U (en) * | 2016-01-22 | 2016-09-14 | 南京康尼机电股份有限公司 | Automatic nut component of door actuating system |
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| US4897959A (en) * | 1989-03-15 | 1990-02-06 | Marotta Scientific Controls, Inc. | Jail cell lock mechanism |
| JPH09203270A (en) * | 1996-01-29 | 1997-08-05 | Toyo Electric Mfg Co Ltd | Door opening/closing device |
| CA2414152A1 (en) * | 2002-08-28 | 2004-02-28 | Westinghouse Air Brake Technologies Corporation | Lock latch mechanism for transit vehicle door |
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| CN110273614A (en) * | 2019-05-21 | 2019-09-24 | 佛山市磁家有导科技有限公司 | A kind of safety track magneto with clutch |
| WO2021190125A1 (en) * | 2020-03-27 | 2021-09-30 | 青岛海尔电冰箱有限公司 | Automatic door opening device and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105507729B (en) | 2018-01-30 |
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