CN106044456A

CN106044456A - Working method of elevator

Info

Publication number: CN106044456A
Application number: CN201610390773.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-29
Filing date: 2014-12-29
Publication date: 2016-10-26
Also published as: CN105858397A; IES20150313A2; CN106044457A; CN104495561A; IE20150346A1; CN105905738A; CN104495561B; IES86743B2; CN105905737A; GB201522982D0; AU2015100520A4; AU2015100521A4; CN105883524A; CN105905736A

Abstract

The invention relates to the field of elevators, particularly relates to a working method of an elevator and discloses a drop preventing unit of an elevator. The drop preventing unit comprises support frames firmly connected with a lift car and a guide rail arranged along an elevator shaft. The drop preventing unit is characterized by also comprising a first gear, a second gear, a roller, triggering units, connecting rods, an elastic recovery part and supporting shafts, wherein the triggering units are mounted on the support frames; the roller and the first gear are mounted between the support frames in a free rotation way through the supporting shafts; the guide rail is arranged between the first gear and the roller; the first gear is meshed with the tooth surface of the guide rail; the roller is matched with the smooth surface of the guide rail in a rolling way; the second gear is enabled to revolve around the first gear and is mutually meshed with the first gear by virtue of the connecting rods; and triggering holes matched with the triggering ends of the triggering units in a plug-in way are formed in the connecting rods. When the triggering ends are removed from the triggering holes, the second gear is enabled to be meshed with the guide rail by virtue of the action of an elastic force of the elastic recovery part, at the moment, the freedom degree of the mechanism is zero, the elevator cannot vertically operate, and therefore, the aim of drop prevention of the elevator is achieved.

Description

The method of work of elevator

Technical field

The present invention relates to elevators field, particular but not exclusively relate to the anti-fall unit of a kind of elevator.

Background technology

When elevator occurs unexpected in some cases, elevator can drastically drop, and damages to the people taking elevator.Especially Be when rescue worker the elevator being stuck in floor gap is being carried out personnel withdraw time, elevator can fall because of accident, because of tenesmus Car and static body of wall can produce, to place's object between, the effect cut, and make some of the health of evacuating people The car that position is dropped cuts.How to avoid elevator accidental falling, and then minimizing injury to personnel or injures and deaths become people The problem that need solve.

Summary of the invention

It is an object of the invention to solve the problems referred to above, and the anti-fall unit of a kind of elevator is provided.

To this end, the present invention provides the anti-fall unit of a kind of elevator, it includes support, the first tooth being fastenedly connected with car Wheel, the second gear, guide rail, roller, trigger element, connecting rod, elastic return part, support shaft, trigger element is installed on support, logical Cross support shaft to be freely rotatably mounted on support by roller, by support shaft, the first gear is freely rotatably mounted at On support, being arranged at by guide rail between the first gear and roller, the first gear is meshed with the flank of tooth of guide rail, roller and guide rail Bright finish rolls and coordinates, and makes the second gear revolve round the sun around the axis of the first gear by connecting rod, and the second gear is relative to connecting rod certainly simultaneously By rotating, the second gear and the first gear engage each other, and connecting rod is provided with the triggering hole that end coordinates of triggering with trigger element, tactile Make a start and trigger hole plug-in type and coordinate.

Specifically, when trigger end insert trigger hole time, the second gear on connecting rod be maintained at the first gear lower section and Away from the position of the flank of tooth of guide rail, i.e. trigger end make the second gear not with the face of guide rail；Triggering is withdrawn from when triggering end Kong Shi, by the elastic force effect of elastic return part make the second gear on connecting rod near the flank of tooth of guide rail, and make the second gear with The face of guide rail also engages.

Obviously, when trigger end insert trigger hole time, the second gear on connecting rod is maintained at the top of the first gear and remote On the position of the flank of tooth of guide rail, i.e. trigger end make the second gear not with the face of guide rail；Triggering hole is withdrawn from when triggering end Time, make the second gear on connecting rod near the flank of tooth of guide rail by the elastic force effect of elastic return part, and make the second gear and lead The face of rail also engages.

Specifically, when the second gear is not got involved, the second gear and the first gear engagement rotation, the first gear is mutual with guide rail Engagement rotation；When the second gear is got involved, the tooth of the second gear and the tooth of guide rail are mutual to top, again because of the respective direction of motion Roller position-limiting action because of rail back (bright finish), it is to avoid because when the second gear is got involved, produced active force makes guide rail become Shape, therefore can make the first gear, the second gear and guide rail three be interlocked tightly to each other, due to the second gear with lead The acting on top of rail prevents the first gear and the second gear to engage each other rotation, so that the first gear stops operating, i.e. First gear also stops the engagement rotation with guide rail, thus prevents the tenesmus of elevator.

Beneficial effect: when elevator is properly functioning, makes the second gear be maintained at away from guide rail by trigger element On the position of the flank of tooth, the first gear is meshed with the flank of tooth of guide rail, the first pinion rotation, and then drives the second pinion rotation, rolling Taking turns the bright finish along guide rail to roll, the degree of freedom of the mechanism being made up of the first gear, the second gear, connecting rod, guide rail, roller is 1, So elevator can run the most up and down；When fortuitous event occurs in elevator, trigger element is triggered, and triggers the end triggering from connecting rod Hole is withdrawn from, makes the second gear on connecting rod near the flank of tooth of guide rail by the elastic force effect of elastic return part, and make the second tooth Taking turns and the face of guide rail engaging, now, the first gear, guide rail and the second gear three engage each other, by the first gear, The degree of freedom of the mechanism that the second gear, connecting rod, guide rail, roller are constituted is 0, so elevator can not run up and down, especially since Second gear is positioned at the lower section of the first gear, and elevator has the trend of operation downwards, certainly will make the first gear along guide rail to Lower engagement, and be positioned at the second gear below the first gear and certainly will provide a rightabout active force and stop the first gear Rotate.Therefore, the anti-fall process of elevator is, trigger end trigger, the elastic force of elastic return part make the first gear, the second gear and Guide rail constitutes meshing relation keep such meshing relation two-by-two two-by-two, and such meshing relation prevents falling of elevator.

Employing gear engagement makes the degree of freedom of mechanism be 0, is different from employing circle wheel and makes degree of freedom be 0, and circle is taken turns easily first Skid between the flank of tooth of gear and track, in turn result in elevator tenesmus；And use gear to engage, can make the first gear, the second gear, Track this three be interlocked the most securely, has stopped the tenesmus of elevator.

Accompanying drawing explanation

In explanation below in reference to the accompanying drawing embodiment to being given as non-limiting example, the present invention and superiority thereof Will be better understood, accompanying drawing is as follows:

Fig. 1 is the axonometric chart of anti-fall unit disclosed by the invention；

Fig. 2 is the axonometric chart after being removed by the support of the side in Fig. 1；

Fig. 3 is the front view of Fig. 1；

Fig. 4 is the front view of Fig. 2；

Fig. 5 is the schematic diagram that the second gear in Fig. 4 will be got involved；

Fig. 6-7 be connecting rod with trigger element couple schematic diagram；

Fig. 8 is the axonometric chart of support；

Fig. 9 is the axonometric chart of connecting rod；

Figure 10 is the partial sectional view of connecting rod in Fig. 9；

Figure 11 is the three-dimensional exploded view of the anti-fall unit in Fig. 1；

Figure 12-13 is the axonometric chart of trigger element；

Figure 14 is the schematic diagram of the anti-fall unit in embodiment two；

Description of reference numerals

1. the first gear；2. guide rail；3. roller；4. the second gear；5. support shaft；6. support；7. connecting rod；8. spring；9. trigger Unit；10. sleeve；601. through hole；602. screwed hole；701. trigger hole；901. trigger end.

Detailed description of the invention

Embodiment one

As shown in Figure 1, Figure 2 with shown in Figure 11, the anti-fall unit of elevator disclosed by the invention, it includes the support being fastenedly connected with car 6, first gear the 1, second gear 4, guide rail 2, roller 3, trigger element 9, connecting rod 7, spring 8, support shaft 5, nut, packing ring, open Mouth pin and sleeve 10, trigger element 9 is installed on support 6 by screw, by support shaft 5 by roller 3 rotatably It is installed between two supports 6, by support shaft 5, first gear 1 is freely rotatably mounted between two supports 6, will Guide rail 2 is arranged between the first gear 1 and roller 3, and the first gear 1 is meshed with the flank of tooth of guide rail 2, roller 3 and 2 light of guide rail Face rolls and coordinates, and makes the second gear 4 revolve round the sun around the axis of the first gear 1 by connecting rod 7, the second relative connecting rod 7 of gear 4 simultaneously Freely rotatable, the second gear 4 engages each other with the first gear 1, and connecting rod 7 is provided with what the triggering end 901 with trigger element 9 coordinated Trigger hole 701, trigger end 901 and coordinate with triggering hole 701 plug-in type, adjusted the position of the second gear 4 by sleeve 10, make second Gear 4 and the alignment of the first gear 1 respective median plane, will be located in the support 6 of the first gear 1 both sides by nut and packing ring Connect, then cut by opening and prevent nut loosening from dropping.

As shown in Figure 3 and Figure 4, when triggering end 901 and inserting triggering hole 701, the second gear 4 on connecting rod 7 is maintained at On the lower section of the first gear 1 and the position away from the flank of tooth of guide rail 2, i.e. trigger end 901 make the second gear 4 not with the tooth of guide rail 2 Face contacts, and now, spring 8 is in extended state.

As shown in Figure 6, the triggering end 901 of trigger element 9 inserts in the triggering hole 701 of connecting rod 7, and connecting rod 7 is limited in works as Front position, i.e. connecting rod 7 is straight down.

As it is shown in fig. 7, the end 901 that triggers of trigger element 9 withdraws from the triggering hole 701 of connecting rod 7, the elastic force by spring 8 is made With the second gear 4 made on connecting rod 7 near the flank of tooth of guide rail 2, and make the face of the second gear 4 and guide rail 2 and engage, as Shown in Fig. 5.

As shown in Figure 8, support 6 is provided with and the through hole 601 of support shaft 5 matched in clearance, is additionally provided with installation trigger element 9 Screwed hole 602.

As shown in Figure 9 and Figure 10, the head and the tail two ends of connecting rod 7 are provided with and the through hole 601 of support shaft 5 matched in clearance, connecting rod 7 Side be provided with trigger element 9 trigger the triggering hole 701 that coordinates of end 901 plug-in type, triggering hole 701 is blind hole, blind hole With trigger end 901 matched in clearance, and the port of blind hole 701 is provided with chamfering, it is simple to triggers end 901 and inserts.

As shown in Figure 12 and Figure 13, the front end of trigger element 9 is provided with telescopic triggering end 901, passes through solenoid Control to trigger the flexible of end 901.When triggering signal and applying with trigger element 9, trigger end 901 and retract.

When the second gear 4 is not got involved, the second gear 4 and the first gear 1 engagement rotation, the first gear 1 is mutual with guide rail 2 Engagement rotation；When the second gear 4 is got involved, the tooth of the second gear 4 and the tooth of guide rail 2 are the most right because of the respective direction of motion Top, again because of roller 3 position-limiting action at guide rail 2 back side (bright finish), makes first gear the 1, second gear 4 and guide rail 2 three mutual It is interlocked, due to the second gear 4 and guide rail 2, top effect is prevented engaging each other of the first gear 1 and the second gear 4 Rotating, so that the first gear 1 stops operating, the i.e. first gear 1 also stops the engagement rotation with guide rail 2, thus prevents electricity The tenesmus of ladder.

Embodiment two

Embodiment one will be positioned at the second gear 4 below support 6 it will be arranged on the top of support 6, and insert trigger when triggering end 901 During hole 701, the second gear 4 on connecting rod 7 is maintained on the top of the first gear 1 and the position away from the flank of tooth of guide rail 2, That is, trigger end 901 make the second gear 4 not with the face of guide rail 2；When triggering end 901 and withdrawing from triggering hole 701, by bullet The elastic force effect of spring 8 makes the second gear 4 on connecting rod 7 near the flank of tooth of guide rail 2, and makes the second gear 4 connect with the flank of tooth of guide rail 2 Touch and engage, it is possible to realize the anti-fall of elevator.

Claims

1. a method of work for elevator, elevator includes that anti-fall unit, anti-fall unit include the support being fastenedly connected with car (6), along elevator arrange guide rail (2), it is characterised in that the anti-fall unit of described elevator also include the first gear (1), second Gear (4), roller (3), trigger element (9), connecting rod (7), elastic return part (8), support shaft (5)；Trigger element (9) is installed on On support (6), by support shaft (5), roller (3) is freely rotatably mounted on support (6), by support shaft (5) by One gear (1) is freely rotatably mounted on support (6), is arranged between the first gear (1) and roller (3) by guide rail (2), First gear (1) is meshed with the flank of tooth of guide rail (2), and roller (3) rolls with the bright finish of guide rail (2) and coordinates, and is made by connecting rod (7) Second gear (4) wheel revolves round the sun around the axis of the first gear (1), and the second gear (4) connecting rod (7) relatively is freely rotatable simultaneously, the Two gears (4) engage each other with the first gear (1), and connecting rod (7) is provided with what the triggering end (901) with trigger element (9) coordinated Trigger hole (701), trigger end (901) and coordinate with triggering hole (701) plug-in type；

Described method of work, including: described triggering end (901) inserts when triggering hole (701), the second tooth on connecting rod (7) Wheel (4) is maintained on the top of the first gear (1) and the position away from the flank of tooth of guide rail (2), i.e. triggers end (901) and makes the Two gears (4) not with the face of guide rail (2)；When triggering end (901) and withdrawing from triggering hole (701), by elastic return part Elastic force effect make the second gear (4) on connecting rod (7) near the flank of tooth of guide rail (2), and make the second gear (4) and guide rail (2) Face and engage.