CN1297465C

CN1297465C - Elevator

Info

Publication number: CN1297465C
Application number: CNB018224946A
Authority: CN
Inventors: 冈田峰夫; 冈本健一; 钉谷夫; 汤村敬
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2001-12-11
Filing date: 2001-12-11
Publication date: 2007-01-31
Anticipated expiration: 2021-12-11
Also published as: EP1454867B1; KR100511852B1; JPWO2003050029A1; WO2003050029A1; EP1454867A1; JP3944482B2; CN1489548A; EP1454867A4; KR20040018331A

Abstract

The present invention relates to an elevator device which is provided with a first speed regulator (121). When the speed of an elevator cage (8) which elevates in an elevation path (1) reaches the first overspeed, the circulative movement of a speed regulator rope (13) arranged in the elevation path (1) is restrained so as to brake an emergency stop device (10) which is clamped together with a guide rail. Additionally, a second speed regulator (42) is arranged on the elevator cage (8) so as to brake the emergency stop device (10) when the speed of the elevator cage (8) reaches the second overspeed which is lower than the first overspeed. A terminal area driving device (55) is arranged in the elevation path (1) so as to drive the second speed regulator (42) when the elevation of the elevator cage (8) is carried out in terminal areas. The emergency stop device (10) brakes by using the overspeed which is lower than the emergency braking overspeed of a middle area in the terminal area of the elevation path (1) when the elevator cage (8) descends in overspeed. Therefore, the distance of the elevation allowance in the eleavtion path terminal of the elevator cage (8) can be shortened, and both the construction cost of the elevation path (1) and the fabrication cost of a shock absorber (111) can be reduced.

Description

Lift appliance

Technical field

The present invention relates to when the rising or falling speed of cage arrives the mistake speed that surpasses command speed, make the governor action, make the device that abends produce the lift appliance that braking maneuver is carried out the rotary braking of cage by this governor.

Background technology

Fig. 8～Figure 14 is the figure of expression traditional elevator device.The longitudinal diagram that Fig. 8 represents for concept nature, Fig. 9 is the enlarged drawing at the cage position of Fig. 8, Figure 10 is the front elevation that is arranged on the governor on the lift appliance of Fig. 8, Figure 11 is the lateral plan of Figure 10, Figure 12 for the expression Figure 10 the governor operating state, with the cooresponding figure of Figure 10, Figure 13 is the chart of operating speed characteristic of the lift appliance of presentation graphs 8, Figure 14 be presentation graphs 8 lift appliance the energy disperser operating state, with the cooresponding figure of Fig. 8.

Among the figure, the 1st, the elevating road of lift appliance.The 2nd, the top of elevating road 1.201～203 is respectively to be located near top 2 terminal floor to take advantage of mouth, wherein, the 20th, be located at the 1st top of topmost and take advantage of mouth, the 202nd, be located at the 1st top and take advantage of mouthful 201 the 2nd following tops to take advantage of mouth, the 203rd, be located at the 2nd top and take advantage of mouthful 202 the 3rd following tops to take advantage of mouth.

The 3rd, the bottom of elevating road 1.301～303 is respectively to be located near bottom 3 terminal floor to take advantage of mouth, wherein, the 301st, be located at the 1st bottom of foot and take advantage of mouth, the 302nd, be located at the 1st bottom and take advantage of the 2nd bottoms above 301 to take advantage of mouth, the 303rd, be located at the 2nd bottom and take advantage of mouthful 302 the 3rd top bottoms to take advantage of mouth.

The 4th, be located at the Machine Room of elevating road 1 top.5 are arranged on the control panel in the Machine Room 4.6 are arranged on the winch in the Machine Room 4.The 7th, volume hangs over the main rope on the winch 6, and an end and cage 8, the other end and balance block 9 link.The 10th, be located at the device that abends of cage 8 bottoms, produce action when urgent, engage the generation braking maneuver with the upright guide rail 100 of being located at guiding cage 8 liftings in the elevating road 1.

The 101st, be located at the bearing stand below the cage 8.The 102nd, bar, an end pivot is supported on bearing stand 101, and the other end is installed with the brake plate 103 of the device 10 that abends that disposes with guide rail 100 subtends.The 11st, upright be located at elevating road 1 bottom 3, with the energy disperser of cage 8 subtends configuration.12 are arranged on the governor in the Machine Room 4, the detailed content aftermentioned.

The 13rd, the governor rope of endless, quilt is rolled up to be hung on the governor 12, is suspended in downwards in the elevating road 1, and a side is maintained at the mid-length that cage 8 is a bar 102.The 14th, tension wheel is arranged at elevating road 1 bottom 3, straddles the sag bent portion of governor rope 13, applies tension force to governor rope 13.

The 15th, the framework of governor 12.The 16th, be supported on framework 15, roll up the fly wheel governor that hangs on the governor rope 13 by horizontal pivot.The 17th, pivot is supported on the vertical axis of framework.The 18th, the revolution transmission of governor 16 is given the gear mechanism of vertical axis 17.The 19th, with vertical axis 17 free-running fits, be disposed at the sliding cylinder of framework upside.The 191st, follower sleeve, with vertical axis 17 free-running fits, slide relative tube 19 is retained can rotating relatively state, carries out displacement up and down with sliding cylinder 19.

The 20th, be fixed in the supporting arm of vertical axis 7 upper ends.The 21st, the upper end pivot be supported on supporting arm 20 the end, be arranged at the swing arm of supporting arm 20 both sides.The 22nd, be installed on the hammer of swing arm 21 lower ends.The 23rd, the end pivot is supported on the mid-length of swing arm 21, the armite that other end pivot is supported on sliding cylinder 19 upper ends.The 24th, and vertical axis 17 free-running fits, be disposed at the force body that constitutes by compression disc spring between sliding cylinder 19 and the supporting arm 20.

The 25th, the mid-length pivot is supported on the actuating arm of follower sleeve 191 sides.The 26th, the hook accessory, the lower end is provided with hook 27, and the left side pivot among Figure 10 of upside is bearing on the framework 15.The 28th, support connecting rod, an end pivot is supported near the upper end of framework 15, and other end pivot is supported on an end of actuating arm 25.The 29th, the start connecting rod, an end pivot is supported on the other end of actuating arm 25, and other end pivot is supported on the right side among Figure 10 of hook accessory 26 upsides.

The 30th, rope is accepted body, is arranged near the outside, bottom of framework 15, disposes with governor rope 13 subtends.The 31st, bearing body is arranged at the bottom of framework 15, is disposed between the governor rope 13 of both sides, length direction is the oscillating axle 32 pivots supporting of horizontal arrangement.The 33rd, rope is restrained body, is disposed at the bottom of framework 15, is disposed between the governor rope 13 of both sides, accepts the configuration of body 30 subtends by the governor rope 13 and the rope of a side.

The 34th, hang and close portion, be formed at the top that rope is restrained body 33, hang with hook 27 and close.The 35th, supporting axis, length direction is horizontal arrangement, is bearing in rope by pivot and restrains on the body 33.The 36th, union lever, the length direction orthogonal configuration of length direction and supporting axis 35, an end is fixed in supporting axis 35, oscillating axle 32 free-running fits of the other end and bearing body 31.

The 37th, retarding spring is made of the compression disc spring with union lever 36 free-running fits, is separately positioned on two ends, by and the spring bracket 38 of union lever 36 free-running fits is configured in bearing body 31 and rope is restrained between the body 33.The 39th, the constraint mechanism of governor rope 13 is accepted body 30, bearing body 31 by rope.Rope is restrained primary members such as body 33, retarding spring 37 and is constituted.

Among Figure 13, the 40th, be set in the top decelerate position of taking advantage of low below, mouthful 203 positions than the 3rd top, A be top decelerate position 40 and the 1st top take advantage of the top that forms between mouth 20 positions decide the terminal area, B be decide among the A of terminal area decide the decelerating behavior line.The 41st, be set in the bottom decelerate position of taking advantage of high top, mouthful 203 positions than the 3rd top, C be bottom decelerate position 41 with the 1st bottom take advantage of the bottom that forms between mouth 301 positions decide the terminal area, D be decide among the C of terminal area decide the decelerating behavior line.

Again, Vo is the command speed of lift appliance.Unusual, cage 8 takes place when surpassing the mistakes speed lifting of command speed when lift appliance in Vs, the speed of the cage 8 the when action by governor 12 makes and abends device 10 generation braking maneuvers.The speed Vs of mistake normally is set to about 130% of command speed Vo.

Traditional lift appliance adopts said structure, and in the time of usually, hook 27 extensions that the extension in the constraint mechanism 39 of governor 12 closes portion 34 and hook accessory 26 close, and rope is restrained body 33 and remained on hoisting position as shown in Figure 8.Under this state, governor rope 13 is configured in rope and accepts body 30 and restrain body 33 between the two with rope, and both can not contact for this.

Action by control panel 5 is when winch 6 application of forces, main rope 7 is driven, and cage 8 and balance block 9 is the opposite sense lifting mutually, for example, when top

decelerate position

40 and 41 of bottom decelerate position are not carried out lifting with stopping, with command speed Vo lifting.In deciding terminal area A, C, take advantage of mouthful the 201 or the 1st bottom to take advantage of the direction of mouth 301 to be, when the terminal direction turns round, carry out deceleration control with decided decelerating behavior line B, D to the 1st top again.

Again, the lifting driving governor rope 13 by cage 8 makes fly wheel governor 16 revolutions of governor 12.Thus, vertical axis 17 revolutions, hammer 22 is around vertical axis 17 revolutions.Hammer 22 increases the displacement of rising of the centnifugal forces caused according to vertical axis 17 rotating speeds.The swing of the swing arm 21 that the rising displacement by this hammer 22 causes overcomes the power of force body 24, the displacement of rising of sliding cylinder 19 and follower sleeve 191.

The rising displacement that utilizes the descending speed of cage 8 to arrive the follower sleeve 191 that speed Vs causes promptly utilizes sliding cylinder 19 to surpass the rising displacement of institute's allocation, and actuating arm 25 is swung along the clockwise direction among Figure 10.Utilize the swing of this actuating arm 25, hook accessory 26 is swung along the anticlockwise direction among Figure 10 by start connecting rod 29.Thus, the extension that the extension of hook 27 and rope supression body 33 can be closed portion 34 closes releasing, and rope is restrained body 33 and relied on deadweight decline, becomes state shown in Figure 12.

Under this state, governor rope 13 is accepted the cramping that body 30 and rope are restrained body 33 because of the thrust pressure of retarding spring 37 is subjected to rope, governor rope 13 mobile restrained.Because of cage 8 continues to descend, swing along the clockwise direction among Fig. 9 so be located at the bar 102 that governor rope 13 is kept of cage 8.Utilize the swing displacement of this bar 102, the brake plate 103 of the device 10 that abends that does not elaborate engages with guide rail 100 and produces braking maneuver.Thus, the decline that causes of the mistake speed Vs of cage 8 is braked and stops.

The stopping distance SA of the cage 8 that the braking maneuver of device 10 of abending causes is about stopping distance SA=and crosses speed Vs ²/ (2 * 9.8m/s ²).Again, the stopping distance SA of the cage 8 that also causes with the braking maneuver of the device 10 that abends basically of the buffering actuating travel SB of the energy disperser 11 of cage 8 when crossing speed Vs with energy disperser 11 collisions is identical.

Cage 8 descends and turns round, and when taking advantage of the direction running of mouth 301 towards the 1st bottom in the C of deciding terminal area, D carries out deceleration control with decided decelerating behavior line.Thus, in the normal state, governor 12 is failure to actuate, and the power supply blocking of control panel 5 and winch 6 or the situation of device 10 braking maneuvers that abend can not occur.And also can further shorten the buffering actuating travel SB of energy disperser 11.

Suppose brake (not shown) fault of winch 6, and consider the state of affairs that cage 8 is collided with speed and energy disperser 11 near the speed of mistake Vs in the C of deciding terminal area, and the energy disperser 11 with aforementioned buffering actuating travel SB is set.Like this, for example in the occasion of express elevator device, when buffering actuating travel SB surpassed 10m, the free height of energy disperser 11 surpassed 20m.Take advantage of from the 1st bottom mouthfuls 301 to the bottom of elevating road 13 the degree of depth surpasses 20m.

Again, barrier causes cage 8 to be in that energy disperser 11 collides and under the state with energy disperser 11 compressions for some reason, and as shown in figure 14, cage 8 is according to taking advantage of mouthfuls 301 to descend downwards from the 1st bottom with the cooresponding distance of buffering actuating travel SB.Under this state, as shown in figure 14, balance block 9 continues according to rising with the cooresponding distance of buffering actuating travel SB from the hoisting position of common state.

In above-mentioned traditional lift appliance, need energy disperser 11 with the corresponding height of high speed of lift appliance command speed Vo.And, corresponding with the height of energy disperser 11, take advantage of from the 1st bottom mouthfuls 301 to the bottom of elevating road 1 degree of depth between 3 to be that the hole degree of depth of elevating road 1 needs special outer dark.Again, corresponding with the hole degree of depth of elevating road 1, the rising surplus height of the balance block 9 at elevating road 1 top 2 also must be set highly.

Therefore, exist the expense of constructing of elevating road 1 and the high problem of production costs of energy disperser 11.Again, the rising surplus height of the balance block 9 at elevating road 1 top 2 is difficult to realize that mouth 201 is taken advantage of at the 1st top so that mouth 202 is taken advantage of at the 2nd top so can not be provided with, and has the problem that produces obstruction when plan is provided with the building of elevator.

The present invention is exactly that its purpose is to provide a kind of lift appliance that can shorten the lifting surplus distance in the cage elevating road terminal in the elevator of high-speed operation in order to solve the above problems.

Summary of the invention

Lift appliance of the present invention is characterized in that, comprising: by the upright rail guidance in the elevating road, the cage of carrying out lifting in described elevating road be located at; Be arranged on this cage, when needing and engage the device that abends that produces braking maneuver with described guide rail by action; Hang be located in the described elevating road, a side and the described device that abends links and along with circulate in the deciding path governor rope of mobile endless of the lifting of cage; Volume is hung this governor rope, has been arrived when surpassing the 1st of command speed and crossing speed, the circulation of described governor rope is moved forward into row constraint so that the described device that abends produces the 1st governor of braking maneuver when described cage speed; Separate with the 1st governor be arranged on the cage, when this cage speed surpass command speed arrived than the described the 1st cross speed low the 2nd make the actuating arm swing so that the described device that abends produces the 2nd governor of braking maneuver when crossing speed; And be arranged on the terminal area actuating device that in the terminal area of described elevating road, only in the scope of this terminal area, described the 2nd governor is driven.

In above-mentioned lift appliance, the terminal area actuating device is by forming from upright fricting strip body and the friction wheel of establishing in elevating road bottom, described friction wheel constitutes the fly wheel governor of the 2nd governor, and only engage with described fricting strip body in the scope of the terminal area of elevating road, the lifting by cage drives.

In above-mentioned lift appliance, the terminal area actuating device is formed by the miniature gears and the rack bar of the fly wheel governor that constitutes the 2nd governor, the length direction of described rack bar is disposed on the vertical direction, with described pinion, above-below direction is maintained on the supporting arm that is convexly equipped with from cage slidably, described relatively the 2nd governor is disposed at lowering position, the decline of the elevating road terminal area by described cage, the lower end is supported by the elevating road bottom, described relatively the 2nd governor rises, to drive described miniature gears.

Adopt said structure, when cage speed surpasses command speed, in the terminal area of elevating road, utilize and cross the low mistake speed of speed, make the device that abends produce braking maneuver than the emergency braking in the zone line of elevating road.Thus, can shorten the lifting surplus distance in the cage elevating road terminal, can reduce the expense of constructing of elevating road and the production costs of energy disperser, can reduce restriction again the building design aspect that elevator is set.

Description of drawings

Fig. 1 is the concept nature longitudinal diagram of expression the present invention the 1st embodiment.

Fig. 2 is the chart of operating speed characteristic of the lift appliance of presentation graphs 1.

Fig. 3 is the enlarged drawing at the cage position of Fig. 1.

Fig. 4 be presentation graphs 3 the governor operating state, with the cooresponding figure of Fig. 3.

Fig. 5 for the cage of presentation graphs 1 the zone line of elevating road carry out jacking condition, with the cooresponding figure of Fig. 3.

Fig. 6 for the cage of expression the present invention the 2nd embodiment the zone line of elevating road carry out jacking condition, with the cooresponding figure of Fig. 5.

Fig. 7 for the cage of presentation graphs 6 carry out in the terminal area of elevating road jacking condition, with the cooresponding figure of Fig. 3.

Fig. 8 is the concept nature longitudinal diagram of expression traditional elevator device.

Fig. 9 is the enlarged drawing at the cage position of Fig. 8.

Figure 10 is the front elevation that is arranged on the governor in the lift appliance of Fig. 8.

Figure 11 is the lateral plan of Figure 10.

Figure 12 for the expression Figure 10 the governor operating state, with the cooresponding figure of Figure 10.

Figure 13 is the chart of operating speed characteristic of the lift appliance of presentation graphs 8.

Figure 14 be presentation graphs 8 lift appliance the energy disperser operating state, with the cooresponding figure of Fig. 8.

The specific embodiment

Further describe the present invention with reference to the accompanying drawings.

Fig. 1～Fig. 5 is the figure of expression the present invention the 1st embodiment, the longitudinal diagram that Fig. 1 represents for concept nature, Fig. 2 is the chart of operating speed characteristic of the lift appliance of presentation graphs 1, Fig. 3 is the enlarged drawing at the cage position of Fig. 1, Fig. 4 be presentation graphs 3 governor action, with the cooresponding figure of Fig. 3, Fig. 5 for the cage of presentation graphs 1 the zone line of elevating road carry out jacking condition, with the cooresponding figure of Fig. 3.

Among the figure, the 1st, the elevating road of lift appliance.The 2nd, the top of elevating road 1.201～203 is respectively to be located near top 2 terminal floor to take advantage of mouth, the 201st, and be located at the 1st top of topmost and take advantage of mouth, the 202nd, be located at the 1st top and take advantage of the 2nd tops below 201 to take advantage of mouth, the 203rd, be located at the 2nd top and take advantage of the 3rd tops below 202 to take advantage of mouth.

The 3rd, the bottom of elevating road 1.301～303 is respectively that near 3 terminal floor are taken advantage of mouth bottom being located at, the 301st, and be located at the 1st bottom of foot and take advantage of mouth, the 302nd, be located at the 1st bottom and take advantage of mouthful 301 the 2nd following bottoms to take advantage of mouth, the 303rd, be located at the 2nd bottom and take advantage of mouthful 302 the 3rd following bottoms to take advantage of mouth.

The 4th, be located at the Machine Room of elevating road 1 top.5 are arranged on the control panel in the Machine Room 4.6 are arranged on the winch in the Machine Room 4.The 7th, volume hangs over the main rope on the winch 6, and one end and cage 8, the other end and balance block 9 link.The 10th, be located at the device that abends of cage 8 bottoms, produce action when urgent, engage generation braking maneuver (omitting detailed explanation) with the upright guide rail 100 of being located at guiding cage 8 liftings in the elevating road 1.

The 101st, be located at the bearing stand below the cage 8.The 102nd, bar, one end pivot is supported on bearing stand 101, and the other end is installed with the brake plate 103 of the device 10 that abends that disposes with guide rail 100 subtends.The 121st, be located at the 1st governor in the Machine Room 4, because of identical with aforementioned governor shown in Figure 10 12 structures, the explanation that the Therefore, omited is detailed.

The 111st, upright be located at elevating road 1 bottom 3, with the energy disperser of cage 8 subtends configuration.The 13rd, the governor rope of endless, quilt is rolled up to be hung on the 1st governor 121, and is suspended in the elevating road 1, and the one side is maintained in the middle of the length direction that cage 8 is a bar 102.The 14th, tension wheel 14 is arranged at elevating road 1 bottom 3, straddles the sag bent portion of governor rope 13, applies tension force to governor rope 13.

The 42nd, be installed on the 2nd governor of cage 8, comprising: be supported on the fly wheel governor 45 that the friction wheel on the axle 44 of adapter plate 43 constitutes by pivot; Be supported on the flyball 47 of the symmetric position of fly wheel governor 45 sides with respect to axle 44, by pin 46 pivots; Two ends respectively pivot be supported on the flyball 47 of subtend, with the swing of a side flyball 47 connecting rod 48 to the opposing party's flyball 47 transmissions; And with axle 44 free-running fits, be disposed at fly wheel governor 46 sides, be arranged at the stop pin 49 cooresponding ratchets 50 of flyball 47 ends.

Again, the 2nd governor 42 comprises: the actuating arm 51 that an end is fixed in ratchet 50, is convexly equipped with towards cage 8 side directions; The two ends pivot is supported on the protruding end and the union lever 52 bar 102 and ends brake plate 103 opposition sides of actuating arm 51; And the force body 53 of the direction application of force of separating from ratchet 50 by the end of stop pin 49 sides that compression disc spring constitutes, two ends remain in flyball 47 and fly wheel governor 45 sides, to stop pin 49.

The 54th, the fricting strip body, its lower end is from elevating road 1 bottom 3 upright establishing, and the upper end is disposed at the 3rd bottom and takes advantage of mouthful the 303 and the 2nd bottom to take advantage of between the mouth 302.The 55th, the terminal area actuating device is made of fly wheel governor 45 and fricting strip body 54, is arranged in the terminal area of elevating road 1, in this terminal area, fly wheel governor 45 contacts with fricting strip body 54, and the lifting by cage 8 makes fly wheel governor 45 revolutions, and the 2nd governor 42 is driven.

Usually the time, flyball 47 utilizes the power of force body 53 that stop pin 49 is remained on the institute's allocation that separates from ratchet 50, and the revolution that utilizes fly wheel governor 45 is with fly wheel governor 45 revolution.And in a single day the rising or falling speed of cage 8 arrives the described later the 2nd and crosses speed, and the power that then overcomes force body 53 is carried out rotation, and stop pin 49 engages with ratchet 50.Thus, actuating arm 51 swings, i.e. action by the 2nd governor 42 makes the device 10 that abends produce braking maneuver.

Among Fig. 2, the 40th, be set in the top decelerate position of taking advantage of low below, mouthful 203 positions than the 3rd top, A be top decelerate position 40 and the 1st top take advantage of the top that forms between 20 positions decide the terminal area, B be decide among the A of terminal area decide the decelerating behavior line.The 41st, be set in the bottom decelerate position of taking advantage of high top, 303 positions than the 3rd bottom, C be bottom decelerate position 41 and the 1st bottom take advantage of the bottom that forms between mouth 301 positions decide the terminal area, D be decide among the A of terminal area decide the decelerating behavior line.

E is the upper end position of the fricting strip body 54 of the terminal area actuating device 55 in the elevating road 1, and Vo is the command speed of lift appliance.Vs makes the speed of the cage 8 when abending device 10 generation braking maneuvers when lift appliance in the 1st action of crossing the about card mechanism 39 that unusual, governor rope 13 when cage 8 is crossed speed Vs lifting to surpass the 1st of command speed, by retraining the 1st governor 121 takes place in the speed.The 1st crosses speed Vs is set to about 130% of command speed Vo usually.

Vt crosses in the speed the 2nd, when lift appliance take place unusual, cage 8 with the mistakes speed that surpasses command speed in the terminal area during lifting when surpassing the speed decline that institute decide to represent among the decelerating behavior line D, the speed of the cage 8 when abending device 10 generation braking maneuvers by making by the stop pin 49 of the 2nd governor 42 of terminal area actuating device 55 drivings and engaging of ratchet 50.And the 2nd mistake speed Vt sets to such an extent that speed Vs is low excessively than the 1st.

In the lift appliance of said structure, in the time of usually, an ancient unit of weight 27 extensions that the extension in the constraint mechanism 39 of the 1st governor 121 closes portion 34 and hook accessory 26 close, and the rope supression is stopped 33 and remained on aforementioned hoisting position shown in Figure 10.Under this state, governor rope 13 is configured in rope and accepts body 30 and restrain body 33 between the two with rope, and both do not contact for this.Again, the flyball of the 2nd governor 42 47 is usually the time, utilizes force body 53 that stop pin 49 is remained on not and ratchet 50 position contacting.

In the action by control panel 5 during to winch 6 application of forces, main rope 7 is driven, and cage 8 and balance block 9 is the opposite sense lifting mutually, for example, when

top decelerate position

40 and 41 of bottom decelerate position are not carried out lifting with stopping, turn round with command speed Vo.In deciding terminal area A, C, when cage 8 takes advantage of mouthful the 201 or the 1st bottom to take advantage of 301 direction to be the running of terminal direction to the 1st top, then carry out deceleration control with decided decelerating behavior line B, D again.

Again, irrelevant with the lifting position in the elevating road 1 of cage 8, the lifting by cage 8 drives fly wheel governor 16 revolutions that governor rope 13 makes the 1st governor 121.Thus, vertical axis 17 revolutions, hammer 22 is around vertical axis 17 revolutions.Hammer 22 increases the displacement of rising of the centnifugal forces caused according to vertical axis 17 rotating speeds.The swing of the swing arm 21 that the rising displacement by this hammer 22 causes overcomes the application of force of force body 24, the displacement of rising of sliding cylinder 19 and follower sleeve 191.

Utilize the descending speed of cage 8 to arrive the 1st rising displacement of crossing the follower sleeve 191 that speed Vs causes and promptly utilize follower sleeve 191 to surpass the rising displacement of institute's allocation, actuating arm 25 is swung along the clockwise direction among aforementioned Figure 10.Utilize the swing of this actuating arm 25, hook accessory 26 is swung along the anticlockwise direction among Figure 10 by start connecting rod 29.Thus, the extension that the extension of an ancient unit of weight 27 and rope supression body 33 can be closed portion 34 closes releasing, and rope is restrained body 33 and relied on deadweight decline, becomes aforementioned state shown in Figure 12.

Under this state, governor rope 13 is accepted body 30 and rope by rope and is restrained body 33 by the thrust pressure cramping of retarding spring 37 and retrain moving of governor rope 13.Because of cage 8 continues to descend, swing along the clockwise direction among Fig. 9 so be located at the bar 102 of the maintenance governor rope 13 on the cage 8.Utilize the swing displacement of this bar 102, the brake plate 103 of the device 10 that abends engages with guide rail 100 and produces braking maneuver (not elaborating).Thus, the 1st of cage 8 the cross decline that speed Vs causes and be braked and stop.

Again, elevating road 1 decide among the C of terminal area, make the occasion of cage 8 lifting in the scope that drives by terminal area actuating device 55 when the 2nd governor 42, cage 8 failure and other reasons that the terminal direction that causes because of deciding decelerating behavior line D turns round, when the descending speed of cage 8 was crossed speed Vt above the 2nd, the 2nd governor 42 produced action as described below.

That is, decide the rising or falling speed of the cage 8 among the C of terminal area and cross speed Vt in case surpass the 2nd, then flyball 47 overcomes the power of force body 53, with respect to fly wheel governor 45 rotations, stop pin 49 is engaged with ratchet 50.Thus, actuating arm 51 swings are, 42 actions of the 2nd governor, and the device 10 that abends produces braking maneuvers.Thereby the 2nd of cage 8 is crossed the decline braking that speed Vt causes and stop.

In a word, when the lifting position of cage 8 is in when being the zone line of elevating road 1 than high top, terminal area actuating device 55 upper ends, the 2nd governor 42 does not drive.Under this state, when the speed of cage 8 is crossed speed Vs above the 1st, 121 actions of the 1st governor, the device 10 that abends produces braking maneuvers.

When the lifting position of cage 8 is in when being the terminal area of elevating road 1 than low below, terminal area actuating device 55 upper ends, the 2nd governor 42 drives.Thus,, the speed of cage 8 is lower than the 1st when crossing the 2nd of speed Vs and crossing speed Vt when surpassing, 42 actions of the 2nd governor, and the device 10 that abends produces braking maneuvers.

And, the upper end position of the fricting strip body 54 of terminal area actuating device 55 is set as follows.That is, the difference of the height of the position of the cage 8 the when position of the cage 8 the when fly wheel governor 45 and fricting strip body 54 upper ends of the 2nd governor 42 are in subtend is contacted with energy disperser 111 with the bottom of cage 8 is as La, then La=(the 1st mistake speed Vs ²-Di 2 crosses speed Vt ²)/(2 * 9.8m/s ²).

Thus, even just be in cage 8 fricting strip body 54 upper end position directly over and reach the 1st and cross speed Vs, cause the occasion of device 10 braking maneuvers that abend because of 121 actions of the 1st governor, before the cage 8 pushing energy dispersers 111 that descend, also cage 8 is decelerated to the 2nd and crosses speed Vt.

Like this, although energy disperser 111 does not have the cooresponding function with the 1st mistake speed Vs, but have and the low-tach the 2nd cross the cooresponding function of speed Vt than it, can use the short energy disperser actuating travel of buffering actuating travel SB of crossing aforementioned Figure 14 of speed Vs corresponding function than the 1st.Therefore, can reduce to take advantage of from the 1st bottom mouthfuls 30 to the bottom of elevating road 1 degree of depth between 3 is the hole degree of depth of elevating road 1.

Again, because the speed can reduce cage 8 and contact with energy disperser 111 time also can shorten and cushion actuating travel SB, therefore, the rising surplus height of the balance block 9 at elevating road 1 top 2 also can reduce.Thereby can reduce the expense of constructing of elevating road 1 and the production costs of energy disperser 111.

Owing to can reduce the rising surplus height of the balance block 9 at elevating road 1 top 2, therefore the 1st top can be set easily take advantage of mouth 201 again, can improve the building design-calculated degree of freedom that elevator is set so that mouth 202 is taken advantage of at the 2nd top.And since the action of the 2nd governor 42 and without any need for externally fed, even in the power failure occasion, also can carry out speed without barrier to detect, can make the device 10 that abends produce braking maneuvers again.

Fig. 6 and Fig. 7 are the figure of expression the present invention the 2nd embodiment, wherein, Fig. 6 for the expression cage the zone line of elevating road carry out jacking condition, with earlier figures 5 cooresponding figure, Fig. 7 for the cage of presentation graphs 6 the zone line of elevating road carry out jacking condition, with earlier figures 3 cooresponding figure.In addition, except Fig. 6 and Fig. 7, the structure of lift appliance is identical with the embodiment of earlier figures 1～Fig. 5.

Among the figure, the symbolic representation considerable part identical with Fig. 1～Fig. 5,56 is fly wheel governors of the 2nd governor 42, the miniature gears of axle on 44 that is supported on adapter plate 43 by pivot constitutes.The 57th, length direction be disposed on the vertical direction with fly wheel governor 56 ingear rack bars 57.The 58th, be arranged at the prevention body of rack bar 57 upper ends.

The 59th, supporting arm, cage 8 is fixed and protruded to an end, disposes two that above-below direction is separated from each other, and by the other end rack bar 57 kept along the vertical direction slidably.The 60th, buffer component is arranged on 3 of elevating road 1 bottoms, with the lower end subtend configuration of rack bar 57.

The 61st, the terminal area actuating device, major part is made of fly wheel governor 56 and rack bar 57, when the zone line lifting occasion of cage 8 in elevating road 1, as shown in Figure 6, stops body 58 to contact with supporting arm 59, and rack bar 57 relative cage 8 remain in lowering position.When the zone line lifting of cage 8 in elevating road 1, as shown in Figure 6, because of rack bar 57 and cage 8 one liftings, fly wheel governor 56 does not carry out relative displacement relatively, and fly wheel governor 56 does not drive.

In case cage 8 near the bottom 3 of elevating road 1 decide terminal area C and descend, then rack bar 57 contacts with buffer component 60 and is held.And, if cage 8 continues to descend, then becoming state shown in Figure 7, rack bar 57 relative fly wheel governors 56 carry out relative displacement, and fly wheel governor 56 is driven.

In the lift appliance of said structure, promptly when the lifting position of cage 8 was in the zone line of elevating road 1, the 2nd governor 42 did not drive the occasion that is not cushioned cage 8 liftings under the state that member 60 supports at the rack bar 57 of terminal area actuating device 61.

Again, promptly when near the terminal area C the bottom 3 of lifting position in elevating road 1 of cage 8 descended, the fly wheel governor 56 relative rack bars 57 of the 2nd governor 42 carried out relative displacement to the occasion that is cushioned cage 8 liftings under the state that member 60 supports at the rack bar 57 of terminal area actuating device 61.

Drive fly wheel governor 56 thus, when the speed of cage 8 was crossed speed Vt above the 2nd, the device 10 that abends produced braking maneuvers.Like this, Fig. 6 that does not elaborate and the embodiment of Fig. 7 also can obtain the same effect of embodiment with Fig. 1～Fig. 5.

By the decline of cage 8, rack bar 57 contacts with the buffer component 6C of 3 of elevating road 1 bottoms.Vibration in the time of can reducing rack bar 57 and contact with 3 of elevating road 1 bottoms can improve the accuracy of detection that the 2nd of the 2nd governor 42 is crossed speed Vt.

In addition, when cage 8 when rack bar 57 is cushioned state that member 60 supports and rises, rack bar 57 from state shown in Figure 7 begin to make fly wheel governor 56 revolutions and relatively cage 8 descend.And by stoping body 58 and supporting arm 59 butts to stop the continuation decline of rack bar 57 relative cage 8, and make it with cage 8 risings.

The possibility of utilizing on the industry

In sum, lift appliance of the present invention is to guide cage by the vertical guide rail of being located in the elevating road Lifting, again, the speed regulator rope of endless hung be located in the elevating road, this speed regulator rope is along with elevator Loopy moving is carried out in the lifting in railway carriage or compartment in deciding path. And, move whenever necessary in the cage setting, Engage, produce the device that abends of braking maneuver with guide rail. One of device and speed regulator rope abends Side links.

Again, be provided with the 1st governor, cross speed when cage speed has arrived above the 1st of normal speed In time, retrain the loopy moving of speed regulator rope, makes the device that abends produce braking maneuver. And, Be provided with the 2nd governor in cage, when cage speed surpasses normal speed, arrived than the 1st mistake The 2nd loopy moving to speed regulator rope when crossing speed that speed is low retrains, and the device that abends is produced Give birth to braking maneuver. In the terminal area of elevating road, be provided with the terminal area drive unit, in the terminal area The 2nd governor is driven.

Thus, when the rising or falling speed of cage surpasses normal speed, in the terminal area of elevating road, profit With cross the low mistake speed of speed than the brake hard in the zone line of elevating road the device that abends is produced Braking maneuver. Thus, be applicable to have the lifting surplus distance that can shorten in the cage elevating road terminal, can Reduce the lift appliance of effect of the production costs of the height of elevating road, the expense of constructing that reduces elevating road and buffer Structure.

Claims

1. a lift appliance is characterized in that, comprising: by the upright rail guidance in the elevating road, the cage of carrying out lifting in described elevating road be located at; Be arranged on this cage, when needing and engage the device that abends that produces braking maneuver with described guide rail by action; Hang be located in the described elevating road, a side and the described device that abends links and along with circulate in the deciding path governor rope of mobile endless of the lifting of cage; Volume is hung this governor rope, has been arrived when surpassing the 1st of command speed and crossing speed, the circulation of described governor rope is moved forward into row constraint so that the described device that abends produces the 1st governor of braking maneuver when described cage speed; Separate with the 1st governor be arranged on the cage, when this cage speed surpass command speed arrived than the described the 1st cross speed low the 2nd make the actuating arm swing so that the described device that abends produces the 2nd governor of braking maneuver when crossing speed; And be arranged on the terminal area actuating device that in the terminal area of described elevating road, only in the scope of this terminal area, described the 2nd governor is driven.

2. lift appliance as claimed in claim 1, it is characterized in that, the terminal area actuating device is by forming from upright fricting strip body and the friction wheel of establishing in elevating road bottom, described friction wheel constitutes the fly wheel governor of the 2nd governor, and only engage with described fricting strip body in the scope of the terminal area of elevating road, the lifting by cage drives.

3. lift appliance as claimed in claim 1, it is characterized in that, the terminal area actuating device is formed by the miniature gears and the rack bar of the fly wheel governor that constitutes the 2nd governor, the length direction of described rack bar is disposed on the vertical direction, with described pinion, above-below direction is maintained on the supporting arm that is convexly equipped with from cage slidably, described relatively the 2nd governor is disposed at lowering position, the decline of the elevating road terminal area by described cage, the lower end is supported by the elevating road bottom, described relatively the 2nd governor rises, to drive described miniature gears.