CN112125107A

CN112125107A - Novel door machine

Info

Publication number: CN112125107A
Application number: CN202011084693.9A
Authority: CN
Inventors: 周于龙; 朱君成; 沈新祥
Original assignee: Aote Rambo Elevator Co ltd
Current assignee: Aote Rambo Elevator Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2020-12-25

Abstract

The invention aims to provide a novel door machine which is used for solving the problems in the prior art and comprises a support arranged above an elevator car door, a door plate hung on the support and sliding along the extending direction of the support, and a driving device arranged on the support and driving the door plate, wherein the support and the door plate are in sliding connection through a guiding device, the guiding device comprises an upper rail, a lower rail and a guiding block, the upper rail and the lower rail are respectively connected with the door plate and the support, the lower rail is provided with a groove with three sides surrounding the upper rail, and the guiding block is arranged on the lower surface of the upper rail and is abutted against the bottom surface of the groove to realize rolling contact. Through this elevator door machine with adjustable stable guider, can keep the clearance that prevents to collide with between door plant and the elevator body in, have the function that makes the door plant keep higher stability under the condition of rocking to make its guiding ability difficult inefficacy, not fragile. The maintenance performance and the service performance are good.

Description

Novel door machine

Technical Field

The invention relates to the technical field of elevator equipment, in particular to a novel door machine.

Background

The elevator door machine is a mechanism responsible for opening and closing the elevator hall car door, and when the elevator door machine receives an elevator opening and closing signal, the elevator door machine controls a driving device to close or open the elevator door plate through a self-contained control system. The elevator door panel slides on the upper beam/bracket of the elevator door frame in the direction of the elevator door panel to move.

In general prior art, the support of door machine is equipped with the track, the door plant hangs through the pulley and adorns horizontal slip on the track, in elevator operation process, because the air current in the well, rocking of elevator itself, personnel's contact striking scheduling problem must exist, the event generally sets up and has certain clearance between elevator door plant and the other structures of elevator and rock the door plant that leads to colliding with the damage each other in order to prevent that above-mentioned reason from causing, but this structure makes pulley track complex guide structure take place crooked after rocking easily again, deviate from etc. and influence the door plant performance that opens and shuts, lead to damaging or need frequently maintain the problem of waiting, it is poor promptly to have whole robustness, the easy problem of damaging the inefficacy.

Disclosure of Invention

The invention aims to provide a novel door machine which is used for solving the problems in the prior art, and the elevator door machine with the adjustable stable guide device can keep a gap between a door plate and an elevator body, which is used for preventing collision, and has the function of keeping the door plate to have higher stability under the condition of shaking, so that the guide capability of the elevator door machine is difficult to lose efficacy and is difficult to damage. The maintenance performance and the service performance are good.

In order to realize the purpose of the invention, the invention adopts the following technical scheme:

the utility model provides a novel door machine, including the support of locating elevator car door top, hang and locate the support and follow its extending direction gliding door plant and install in support and drive the drive arrangement of door plant, the support with realize sliding connection through guider between the door plant, guider includes upper rail, lower rail, guide block, the upper rail is connected respectively with the lower rail door plant and support, the lower rail has and is three sides and surrounds the recess of upper rail, the guide block is located the lower surface of upper rail and with the grooved underside ends to support and realizes rolling contact.

As a preferable technical scheme of the invention, the lower surface of the guide block is provided with a guide groove with a shape line in a closed curve, a first ball is embedded in the guide groove, the first ball is provided with a plurality of end-to-end connection in pairs along the shape line in the guide groove, and the first ball rolls downwards to be stopped against the bottom surface of the groove.

In a preferred embodiment of the present invention, the cross section of the guide groove is formed in an arcuate shape having a radian of 180 ° or less and 120 ° or more.

As a preferable technical scheme of the invention, a magnetic strip is embedded in the guide groove along the shape line direction.

As a preferred technical solution of the present invention, the guiding device further includes an elastic member, and two ends of the elastic member respectively abut against the fixed end of the guiding block and the movable end of the side wall of the groove.

As a preferable technical scheme of the invention, the movable end is provided with a second ball which is in rolling contact with the side wall of the groove.

As a preferred technical scheme of the present invention, a connection column is disposed on the top of the guide block, the connection column is detachably connected to a connection hole located on the lower surface of the upper rail, and the connection hole has a plurality of connection holes arranged at intervals along the extending direction of the upper rail.

As a preferable technical scheme of the invention, the connecting column is in threaded connection with the guide block, and the upper surface of the guide block is provided with a connecting sleeve which extends upwards around the connecting column.

As a preferable technical scheme of the invention, the top end of the connecting sleeve is provided with a plurality of open grooves which extend along the axial direction and are circumferentially arranged around the axial line at intervals, the peripheral surface of the connecting sleeve is provided with a fastening nut, and the inner wall of the connecting sleeve is covered with a soft layer.

As a preferable technical scheme of the invention, a support frame in rolling contact with the door panel is arranged on the side surface of the support frame.

The invention has the beneficial effects that:

1. the upper rail and the door plate connected with the upper rail are limited in freedom degree to a certain extent by the groove sleeving mode of the lower rail and the upper rail, so that good stability is realized, and guide kinetic energy is prevented from being damaged due to failure;

2. furthermore, the arrangement of the first ball below the guide block realizes good rolling contact between the upper rail and the lower rail to ensure the sliding performance of the door plate, and meanwhile, the structure of the groove and the first ball is arranged to ensure that the door plate has good bearing performance;

3. through groove structure cooperation elastic component structure for the lateral range of rocking and the degree of freedom of upper rail receive the restriction and have the ability that elasticity replied by oneself in the lower rail, thereby reduce the range of rocking of door plant self and with the elevator body between required safety clearance allowance.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional elevation view of the present invention at the guide block;

FIG. 3 is a schematic bottom view of the guide block of the present invention;

FIG. 4 is a schematic view of the structure of the connecting column of the present invention;

FIG. 5 is a side cross-sectional view of a guide block according to an embodiment of the present invention;

FIG. 6 is a schematic top view of a second embodiment of the present invention at a guide block;

the items in the figure are respectively: 1-bracket, 11-holder, 2-door panel, 3-driving device, 4-upper rail, 41-connecting hole, 5-lower rail, 51-groove, 6-guide block, 61-guide groove, 62-first ball, 63-magnetic strip, 64-elastic element, 641-fixed end, 642-movable end, 643-second ball, 65-connecting column, 66-connecting sleeve, 661-open groove, 662-fastening nut and 663-soft layer.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

a novel door machine as shown in fig. 1, 2, 3, 4, 5, including installing at the horizontal support 1 of elevator car door top, hanging locate support 1 and along its extending direction gliding door plant 2 and install at support 1 and drive door plant 2's drive arrangement 3, wherein drive arrangement 3 can be for the elevator door machine structure that door plant opened and shut about arbitrary simultaneous drive left and right sides door plant of current existence, has selected the drive arrangement of common hold-in range drive in this embodiment for use, and its specific structure is no longer repeated. Horizontal sliding connection is realized through guider between support 1 and door plant 2, guider includes upper rail 4, lower rail 5, guide block 6, upper rail 4 and lower rail 5 are respectively through bolted connection door plant 2 and support 1, lower rail 5 has the recess 51 that three sides that are the type of Chinese character 'ao' surround upper rail 4, be provided with the balanced distribution of a plurality of guide blocks 6 in order to keep door plant 2 to hang the load on upper rail 4 extending direction, and guide block 6 installs the lower surface at upper rail 4 and ends to realize rolling contact with recess 51 bottom surface.

The lower surface of the guide block 6 is machined with a guide groove 61 with a shape line in a closed curve, and the shape line of the guide groove 61 can be in a shape of a circle, an ellipse, a rounded rectangle and the like, so that the first ball 62 embedded in the guide groove can roll circularly. Referring to fig. 3, in the present embodiment, a shape similar to a track with two semicircular ends and two parallel straight lines at the middle is selected, a first ball 62 is embedded in the guide groove 61, the first ball 62 is provided with a plurality of end-to-end connected pairs along the shape line in the guide groove 61, and the first ball 62 rolls downward to stop against the bottom surface of the groove 51. The two semicircular connecting directions of the shape line shape in the embodiment are the same as the extending direction of the lower rail 5, when the door panel 2 is driven to move along the support 1, the balls therein start to roll, and the whole guide groove 61 is in a state of circularly rolling along the shape line, so that the surface contact of the whole rolling between the upper rail 4 and the lower rail 5 is formed, the contact mode reduces the shaking freedom degree of the door panel 2 to a certain degree, and simultaneously reduces the pressure of the single first ball 62 for bearing the weight of the door panel, so that the shaking amplitude and the service life of the door panel are optimized.

Referring to fig. 2 and 5, in the embodiment, the section of the guide groove 61 is in an arc shape with a radian less than or equal to 180 ° and more than or equal to 120 °, and the radius of the base circle of the arc shape in the embodiment is the same as the radius of the first ball, that is, the arc shape and the first ball are in mutual contact and embedding, on one hand, the contact area is increased by the arc-shaped section, so that the bearing stress on the first ball 62 is reduced, the service life of the first ball is prolonged, and the converted friction force is reduced by the reduced stress, so that the sliding opening and closing of the door panel are smoother; on the other hand, the arc of the arc is set to be 120 degrees to 180 degrees, so that the embedding area between the first ball 62 and the guide groove 61 is kept in a moderate range, if the arc is larger than 180 degrees, the friction area is too large, a special process is needed for installation, the cost is too high, if the arc is smaller than 120 degrees, the left and right stopping amount of the guide groove 61 to the first ball 62 is too small, when the door panel 2 is impacted by hoistway airflow and people/objects, the door panel 2 shakes in the direction perpendicular to the visual angle of the drawing 1, namely, the door panel can be regarded as a combined state of swinging and sliding around the guide device, and when the door panel meets large lateral shaking acting force, if the stopping amount to the first ball 62 is too small, the door panel easily falls out of the guide groove 61, the guide function is failed, and the machine needs. Further, the shape of the guide groove 61 in the present embodiment has a distinct advantage in terms of such sloshing: in such a shaking direction, the guide groove 61 has two parallel linear tracks in the moving direction, and the two linear tracks make the first ball 62 not easy to roll and circulate when receiving the acting force in the direction but only slide along with the whole body, namely, a larger friction force is formed through the limitation of the sliding at the position and is equivalent to a lateral pretightening force, so that the moving amplitude of the whole door panel in the direction is effectively resisted and reduced, and the shaking amount of the whole door panel is reduced, namely, the better operation effectiveness is maintained.

For the installation convenience that provides first ball 62 with further prevent that it from taking place to drop scheduling problem because of rocking, in this embodiment, inlay along its shape line direction in the guide slot 61 and be equipped with magnetic stripe 63, in this embodiment magnetic stripe 63's magnetic force only need reach can adsorb first ball 62 and make it can not drop because of gravity to only need arrange first ball 62 in guide slot 61 when the installation and invert the installation can well.

Referring to fig. 5, in the present embodiment, the guide blocks 6 disposed below the upper rail 4 are arranged in a single row, the guide device further includes elastic members 64 disposed at two sides of the guide blocks 6, in the present embodiment, the elastic members 64 are cylindrical springs, and two ends of the cylindrical springs respectively abut against a fixed end 641 of the guide block 6 and a movable end 642 of the side wall of the groove 51. Wherein a second ball 643 is provided at a free end 642 thereof in rolling contact with a side wall of the recess 51. In this embodiment, a receiving hole is formed in the side surface of the guide block 6, the cylindrical spring is placed in the receiving hole, the fixed end 641 abuts against the bottom of the receiving hole, and an opening cover with a hole having a diameter smaller than that of the second ball 643 is threadedly installed at the opening of the receiving hole, so that a structure is formed in which the cylindrical spring presses the receiving hole, elastically abuts against the opening cover and partially protrudes out of the opening cover, at this time, the protruding part of the second ball 643 also abuts against the groove 51, and when the door panel moves, the second balls 642 on both sides of the guide block 6 roll to provide a rolling guiding function for the side surface between the upper rail 4 and the lower rail 5, so that the movement is smoother. When the door panel 2 shakes in the direction pointing to the front view direction, namely, the relative movement between the upper rail 4 and the lower rail 5 occurs, a side gap between the upper rail 4 and the lower rail is also reduced, at the moment, the elastic piece 64 on the side further presses and reduces the shaking amplitude through the damping effect of the elastic force of the elastic piece, and the elastic pieces on the two sides restore to the preset position after the shaking is stopped, so that the robustness and the service life of the door panel are further improved.

Referring to fig. 2, 4 and 5, in the embodiment, the top of the guide block 6 is provided with a connection column 65, the connection column 65 is detachably connected to the connection holes 41 on the lower surface of the upper rail 4 in a threaded or clamping manner, and the connection holes 41 are provided with a plurality of connection holes arranged at intervals along the extending direction of the upper rail 4, so that the number and distribution intervals of the guide blocks 6 mounted on the upper rail 4 can be adjusted according to the parameters of the actual weight, size and the like of the door panel 2, thereby providing better load distribution, and further adjusting the door panel 2 to have smaller swing amplitude and good operation state through the method. Meanwhile, the lower end of the connecting column 65 is in threaded connection with the guide block 6, so that the height of the connecting column and the guide block after connection can be adjusted during installation, and an error gap generated by production tolerance is eliminated in a matching mode. In order to protect the connecting column 65 and improve the bearing capacity thereof, a connecting sleeve 66 extending upwards around the connecting column 65 is welded or machined on the upper surface of the guide block 6.

In the present embodiment, the top end of the connecting sleeve 66 is provided with a plurality of opening grooves 661 extending along the axial direction and circumferentially spaced around the axial direction, and the outer peripheral surface of the connecting sleeve 66 is provided with a fastening nut 662, so that the end of the connecting sleeve 66 can be fastened to the side surface of the connecting column 65 by screwing the fastening nut 662 to fasten the connecting column 65 and ensure good integrity to have the capability of resisting shaking and improving bearing capacity, and at the same time, the inner wall of the connecting sleeve 66 is covered with a soft layer 663 made of rubber or nylon to protect the connecting column 65.

In this embodiment, the portion of the side surface of the bracket 1 and the door panel 2 overlapping in the front view direction is provided with the support 11 in rolling contact with the door panel 2, the joint of the support 11 and the bracket 1 can be any shape convenient for processing and installation, and the linear ball retainer is installed at the contact of the linear ball retainer and the door panel 2 to realize the rolling contact effect, so as to further limit the shaking freedom degree of the door panel 2, and further provide better guiding effect.

Example two

The technical solution described in the second embodiment is similar to that of the first embodiment, and the difference is that:

as shown in fig. 6, the elastic element 64 installed in the guide device in this embodiment is a two-arm torsion spring, and two ends of the two-arm torsion spring respectively abut against the fixed end 641 of the guide block 6 and the movable end 642 of the side wall of the groove 51. The integral double-arm torsion spring is provided with a groove matched with the guide block 6 by machining on the top of the guide block to realize the positioning of the embedded and fixed end 641, and the movable end 642 extends from the side surface to the side wall of the groove 51. While the guide shoes 6 in this embodiment are double rows arranged in parallel in the extension direction of the upper rail 4, the guide shoes 6 on each side have only one elastic member facing one side of the side wall of the corresponding side groove 51. In this embodiment, in order to improve the smoothness of the two-way sliding of the door panel 2, two symmetrical torsion springs are provided on each guide block 6.

Further, in this embodiment, a second ball 643 is provided at the movable end 642 to be in rolling contact with the side wall of the recess 51. The second balls 643 in this embodiment are mounted by means of a linear ball cage screwed onto the free ends 642, while in order to ensure effective contact with the side walls of the recess 51, the free ends 642 are bent relative thereto in a direction parallel to the direction of the side walls of the recess 51 for mounting the linear ball cage, while at their ends they are bent again in the direction of the guide block 6 in order to avoid their ends from piercing the side walls of the recess 51 during possible movements.

The above embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention fall into the protection scope of the present invention, and the technical contents of the present invention which are claimed are all described in the claims.

Claims

1. The utility model provides a novel door machine, including support (1) of locating elevator car door top, hang and locate support (1) and along its extending direction gliding door plant (2) and install in support (1) and drive arrangement (3) of door plant (2), its characterized in that, support (1) with realize sliding connection through guider between door plant (2), guider includes upper rail (4), lower rail (5), guide block (6), upper rail (4) and lower rail (5) are connected respectively door plant (2) and support (1), lower rail (5) have and are the three sides and surround recess (51) of upper rail (4), guide block (6) are located the lower surface of upper rail (4) and with recess (51) bottom surface end is supported and is realized rolling contact.

2. The novel door machine as claimed in claim 1, wherein a guide groove (61) with a closed curve line is formed in the lower surface of the guide block (6), a first ball (62) is embedded in the guide groove (61), the first ball (62) is provided with a plurality of balls which are connected end to end in the guide groove (61) along the curve line of the first ball, and the first ball (62) rolls downwards to abut against the bottom surface of the groove (51).

3. The novel gantry crane according to claim 2, wherein the section of the guide groove (61) is in an arc shape with a radian less than or equal to 180 degrees and more than or equal to 120 degrees.

4. The novel door machine as claimed in claim 2, wherein a magnetic strip (63) is embedded in the guide groove (61) along the shape line direction.

5. A new door machine according to claim 1, characterized in that said guiding device further comprises an elastic member (64), and both ends of said elastic member (64) respectively abut against a fixed end (641) of said guiding block (6) and a movable end (642) of the side wall of said groove (51).

6. A novel door machine according to claim 5, characterized in that a second ball (643) is provided at the movable end (642) for rolling contact with the side wall of the groove (51).

7. The novel gantry crane according to claim 1, wherein a connecting column (65) is arranged at the top of the guide block (6), the connecting column (65) is detachably connected to a connecting hole (41) formed in the lower surface of the upper rail (4), and the connecting hole (41) is formed in a plurality of positions at intervals along the extending direction of the upper rail (4).

8. A novel door machine according to claim 7, characterized in that the connecting column (65) is in threaded connection with the guide block (6), and the upper surface of the guide block (6) is provided with a connecting sleeve (66) extending upwards around the connecting column (65).

9. A novel door machine as claimed in claim 8, characterized in that the top end of the connecting sleeve (66) is provided with a plurality of open slots (661) extending along the axial direction and spaced circumferentially around the axial direction, the outer circumferential surface of the connecting sleeve (66) is provided with a fastening nut (662), and the inner wall of the connecting sleeve is covered with a soft layer (663).

10. The novel door machine as claimed in claim 1, characterized in that the side of the bracket (1) is provided with a support frame (11) which is in rolling contact with the door panel (2).