CN105731212B - Governor and lift appliance - Google Patents

Abstract

The present invention provides governor and lift appliance, which can carry out trip operation even if be not provided with inspection opening portion and can not set in the case of long-distance operating device in liftway.Governor (200), which has, is wound with the rope sheave (3) of speed governing hoist cable (1) being connect with lifting body, malaria (4,5), balancing spring (20) (malaria force application component), toothed ratchet (6) (rotary body), active gage (7), boots mechanism (8) and active gage operating mechanism (9).Active gage operating mechanism (9) has the cable (42) that link with active gage (7) and generates frictional force between cable (42) and hold the cable handle part (43) of the cable (42), makes active gage movement and engages with the malaria before carrying out the rotation based on centrifugal force.

Description

Governor and lift appliance

Technical field

The present invention relates to governor and lift appliances.

Background technology

It is generally configured with making to be absorbed in defined hypervelocity for monitoring the lifting speed of lift car always in lift appliance The governor of the lift car emergent stopping of state.Specifically, governor is more than specified speed in the lifting speed of lift car When spending and reaching the first supervelocity (being usually 1.3 times of normal speed), the hoist engine for driving lift car is cut off respectively Power supply and control the hoist engine control device power supply.In addition, governor is more than the in the decrease speed of lift car One supervelocity and when reaching the second supervelocity 1.4 times of normal speed (be usually), fill the emergency braking set on lift car It puts action and makes elevator car machinery emergent stopping.

Wherein, it in the maintenance test of lift appliance, forcibly carries out trip operation into enforcement governor and makes promptly to make The inspection of dynamic device action confirms the security function of lift appliance.It is configured in the lift appliance of Machine Room in governor, operation Person can enter Machine Room and direct operation governor, so as to which the governor be made forcibly to carry out trip operation.

But as lift appliance, top or lower part of the governor configuration sometimes in liftway.Operator into In the state of entering in liftway, lift car can not be lifted.The situation in liftway is configured in governor as a result, Under, it needs it to be made forcibly to carry out trip operation from the peripheral operation governor of liftway.

Governor is made forcibly to carry out the method for trip operation, such as propose and lifting as from the outside of liftway The opening portion of the wall setting inspection of channel and from the method for the opening portion direct operation governor or use patent document 1 The method of shown such long-distance operating device and direct operation governor.

Citation

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2001-106454 bulletins

The subject that the invention solves

But seek not to the wall of liftway setting inspection opening portion situation, can not in liftway Governor can also be made forcibly to carry out trip operation and carry out maintenance test in the case of setting long-distance operating device.

Invention content

The object of the present invention is to provide governor and lift appliances, and the governor is in the opening for not needing to inspection Portion and trip operation also can be forcibly carried out in the case that long-distance operating device can not be set in liftway.

Solution

It in order to solve the above problems and achieves the object of the present invention, governor of the invention, which has rope sheave, malaria, malaria, to be applied Power component, rotary body, boots mechanism, active gage and active gage operating mechanism.Rope sheave is rotatably disposed in liftway, and It is wound with the speed governing hoist cable being connect with lifting body.Malaria is installed in rotation on rope sheave, and utilizes the feelings rotated in rope sheave The centrifugal force that is acted under condition and rotated.Malaria force application component applies the direction of the malaria towards the rotation for overcoming malaria Power, when centrifugal force reaches more than specified value, the malaria force application component allows the rotation of malaria.

Rotary body is rotatably disposed in liftway, and the malaria with being rotated using centrifugal force is engaged and revolved Turn.Boots mechanism links with rotary body, and is acted by the rotation of rotary body and speed governing is braked with hoist cable.Active gage can Movably engage with rotary body, and rotated together with rotary body.Active gage operating mechanism makes active gage mobile and makes active gage Engage with the malaria before carrying out the rotation based on centrifugal force.Moreover, active gage operating mechanism has the line linked with active gage It cable and generates frictional force between cable and holds the cable handle part of the cable.

In addition, the present invention lift appliance have lifting body, hanging holding lifting body main hoist cable, be wound with main hoist cable and drive Main hoist cable and make traction sheave and connect with lifting body and with the speed governing that the lifting body moves together with hanging that lifting body lifts Rope.In addition, it is also equipped with making the emergency braking apparatus of lifting body emergent stopping, reaches in the lifting speed of lifting body and compare normal speed It acts emergency braking apparatus in the case of fast supervelocity and makes the above-mentioned governor of lifting body emergent stopping.

Invention effect

According to the governor and lift appliance of above structure, even if leading in the opening portion for being not provided with inspection and in lifting In the case of can not long-distance operating device be set in road, trip operation also can be forcibly carried out.

Subject other than the above, structure and effect are become clear by the explanation of following embodiment.

Description of the drawings

Fig. 1 is the structure chart of the configuration example for the lift appliance for representing one embodiment of the present invention.

Fig. 2 is the front view of the configuration example for the governor for representing one embodiment of the present invention.

Fig. 3 is the sectional view along line A-A shown in Fig. 2.

Fig. 4 is the schematic diagram for the active gage operating mechanism for representing one embodiment of the present invention.

The explanation of the state of the active gage of governor when Fig. 5 is the usual operating for representing one embodiment of the present invention Figure.

Fig. 6 is the definition graph of the state of the active gage movement for the governor for representing to make one embodiment of the present invention.

Fig. 7 is that the active gage for the governor for representing one embodiment of the present invention and malaria are engaged and make toothed spine Wheel rotation is so as to carry out the definition graph for the state for forcing trip operation.

Fig. 8 is to represent that pressure trip operation shown in Fig. 7 acts the definition graph for the state that lifting body is made to increase.

Fig. 9 is that the active gage for the governor for representing one embodiment of the present invention restores to the explanation of the state of position of readiness Figure.

Reference sign：

1 ... speed governing hoist cable, 2 ... base stations, 3,90 ... rope sheaves, 4,5 ... malarias, 6 ... toothed ratchets, 7 ... active gages, 8 ... boots mechanisms, 9 ... active gage operating mechanisms, 11 ... fulcrums, 12 ... arms, 13 ... spring fixing portions, 15a, 15b ... balance staff, 17 ... Connecting rod, 18 ... fixinig plates, 19 ... pendulum pawls, 21 ... snap-latch pieces, 21a ... protruding portions, 22 ... limiters, 23 ... brackets, 25 ... pass through Through-hole, the first breakthrough parts of 25a ..., the second breakthrough parts of 25b ..., 26 ... engaging protrusions, 27 ... rotary body force application components, 28 ... connections Axis, 31 ... connecting rods, 32 ... spring shafts, 32a ... spring seat portions, 33 ... control arms, 33a ... axis through-Penetration portion, 33b ... are supported Portion, 35 ... brake shoes, 36 ... fulcrum posts, 41 ... support rods, 42 ... cables, 43 ... cable handle parts, 45 ... affixed sides hold piece, 46 ... rotating sides holding piece, 47 ... axis, 100 ... lift appliances, 200 ... governors, 300 ... lifting bodies, 500 ... main hoist cables, 600 ... traction sheaves, 700 ... guide rails, 800 ... devices, 900 ... working beams, 1000 ... buildings, 1100 ... liftways, 1200 ... Machine Rooms.

Specific embodiment

Hereinafter, the mode of governor and lift appliance for being used to implement the present invention is illustrated with reference to Fig. 1~Fig. 9. It should be noted that in the drawings, identical reference numeral is marked for shared component.

<Lift appliance>

First, the structure of the lift appliance of one embodiment of the present invention is illustrated with reference to Fig. 1.

Fig. 1 is the structure chart of the configuration example for the lift appliance for representing one embodiment of the present invention.

As shown in Figure 1, lift appliance 100 has lifting body (lift car) 300, balance weight 400, main hoist cable 500, traction Wheel 600, guide rail 700, emergency braking apparatus 800, working beam 900 and governor 200.

Lifting body 300 is configured in the liftway 1100 set on building 1000.The lifting body 300 has multiple slips Part (not shown), multiple sliding parts are engaged on guide rail 700 for that can slide.As a result, lifting body 300 guided by guide rail 700 and It is lifted in liftway 1100.

Hereinafter, the direction that lifting body 300 and balance weight 400 are lifted is set as lifting direction.That is, guide rail 700 is lifting Side boots up lifting body 300.

Balance weight 400 has multiple sliding parts (not shown).Multiple sliding parts of balance weight 400 are being fixed on liftway Engaging is can slide on the guide rail (not shown) of 1100 wall surface.Therefore, balance weight 400 is (not shown) along lifting side by guide rail It is lifted in liftway 1100 to guiding.

Hanging holding lifting body 300 and balance weight 400 on main hoist cable 500.Traction sheave 600 is configured set on building 1000 Machine Room 1200.Main hoist cable 500 is wound on the traction sheave 600.In addition, it is configured in Machine Room 1200 to traction sheave 600 driving devices for being driven and being braked (not shown).Driving device hangs master by rotating traction sheave 600 Rope 500 carries out friction-driven, so as to lift lifting body 300 and balance weight 400.

Emergency braking apparatus 800 is set on lifting body 300, is in case of emergency held guide rail 700 using chock and is made liter The lifting for dropping body 300 stops.Working beam 900 is supported on a pivot on lifting body 300, and drives emergency braking apparatus 800.The working beam 900 link with aftermentioned speed governing hoist cable 1.

Governor 200 is more than normal speed in the lifting speed of lifting body 300 and to reach the first supervelocity (for example, specified 1.3 times of speed) when, it cuts off to drive the power supply of the driving device of traction sheave 600 (not shown) and control the drive respectively The power supply of the control device (not shown) of dynamic device.The second surpass in addition, governor 200 reaches in the decrease speed of lifting body 300 During speed (being, for example, 1.4 times of normal speed), the working beam 900 set on lifting body 300 is made to work and make emergency braking apparatus 800 actions.Make 300 mechanicalness emergent stopping of lifting body as a result,.

<Governor>

Next, the structure of governor 200 is illustrated with reference to Fig. 2 and Fig. 3.

Fig. 2 is the front view for the configuration example for representing governor 200.Fig. 3 is the sectional view along line A-A shown in Fig. 2.

As shown in FIG. 2 and 3, governor 200 has base station 2, rope sheave 3, malaria 4 and 5, toothed ratchet 6, active gage 7th, boots mechanism 8 and active gage operating mechanism 9.

Base station 2 is configured on the top of liftway 1100, and is fixed on the top of guide rail 700.Rope sheave 3 rotatably supports In fulcrum 11 fixed on base station 2.Cricoid speed governing hoist cable 1 is wound on the rope sheave 3.Speed governing hoist cable 1 and lifting Body 300 (with reference to Fig. 1) connection, moves together with lifting body 300 and rotates rope sheave 3.

In the present embodiment, if lifting body 300 declines, rope sheave 3 is rotated towards the R1 directions centered on fulcrum 11, If lifting body 300 rises, rope sheave 3 is rotated towards the R2 directions centered on fulcrum 11.

In addition, the rope sheave 91 wound for speed governing hoist cable 1 is configured in the lower part of liftway 1100.The rope sheave 91 is rising It is opposed with rope sheave 3 on drop direction, and be rotatably supported in the fixed supporting member in the lower part of guide rail 700 (not shown).

Arm 12 is fixed on rope sheave 3.Therefore, arm 12 rotates together with rope sheave 3.It is equipped on the arm 12 for aftermentioned flat The fixed spring fixing portion 13 in one end of weighing apparatus spring 20.

Malaria 4,5 is rotatably supported in fixed balance staff 15a, 15b on arm 12.Malaria 4,5 is shaped generally as circular arc Shape, balance staff 15a, 15b run through from the position of the centre-of gravity shift of malaria 4,5.Malaria 4 has the one end using balance staff 15a as boundary 4a and the other end 4b, one end 4a are than the other end 4b weights.In addition, malaria 5 has the one end 5a using balance staff 15b as boundary With the other end 5b, one end 5a is than the other end 5b weights.

When arm 12 rotates together with rope sheave 3, malaria 4,5 is made to be turned centered on balance staff 15a, 15b by centrifugal force It is dynamic.Then, direction (outside) displacements of one end 4a, 5a of malaria 4,5 to separate fulcrum 11, the other end 4b of malaria 4,5, 5b is to the direction displacement close to fulcrum 11.In addition, malaria 4,5 is concatenated by connecting rod 17, effect has the situation of centrifugal force Under displacement (amount of spin) become identical.

Spring stator 18, pendulum pawl 19 are equipped in the other end 4b of malaria 4.The stable equilibrium bullet in spring stator 18 The other end of spring 20.Balancing spring (compression helical spring) 20 shows a concrete example of the malaria force application component of the present invention, relatively In the other end 4b directions of malaria 4 resistance is generated close to the direction displacement of fulcrum 11.That is, act on malaria 4,5 from In the case that mental and physical efforts are more than the resistance of balancing spring 20, flexible deformation (compression) occurs for balancing spring 20, and malaria 4,5 is with balance staff It is rotated centered on 15a, 15b.

Pawl 19 is put to protrude from the side of the inside (11 side of fulcrum) in malaria 4.When making the rotation of malaria 4,5 by centrifugal force The other end 4b of malaria 4 is to during direction displacement close to fulcrum 11, and the aftermentioned teeth portion of pendulum pawl 19 and toothed ratchet 6 is (not Diagram) engaging.

Detection protrusion 4c, 5c are equipped in one end 4a, 5a of malaria 4,5.The detection is with protrusion 4c, 5c from malaria 4th, the side in the outside (side opposite with fulcrum 11) in 5 protrudes.Detection with protrusion 4c, 5c malaria 4,5 with balance staff 15a, It is contacted centered on 15b with detection switch (not shown) in the case of being rotated.

Toothed ratchet 6 shows a concrete example of the rotary body of the present invention, and is rotatably supported in fulcrum 11.The band tooth Ratchet 6 be formed as disk-shaped, the plane of a side is opposed with malaria 4,5.Teeth portion is formed on the peripheral surface of toothed ratchet 6 (not shown).In the pendulum pawl 19 of malaria 4 that the teeth portion engaging of toothed ratchet 6 is rotated centered on balance staff 15a.

In addition, it is fixed with snap-latch piece 21 on toothed ratchet 6.The snap-latch piece 21 has the outer diameter than toothed ratchet 6 The protruding portion 21a more protruded outward.Protruding portion 21a is rotated from original state towards R1 directions to defined in toothed ratchet 6 It in the case of angle, is abutted with the limiter 22 set on governor 200 (with reference to Fig. 5), so as to limit the rotation of toothed ratchet 6 Turn.

Rotary body force application component 27 is connected on the protruding portion 21a of snap-latch piece 21.The rotary body force application component 27 is for example It is the elastic components such as spring, rubber, exerts a force towards the R2 directions centered on fulcrum 11 to toothed ratchet 6.Band tooth as a result, Ratchet 6 usually maintain the state i.e. original states that are detached with limiter 22 of protruding portion 21a.

Toothed ratchet 6 is rotated in the power for being applied in the force for overcoming rotary body force application component 27 towards R1 directions.It is another Aspect, when the power of force of rotary body force application component 27 is overcome to be released from, toothed ratchet 6 restores to original state.That is, band The ratchet 6 of tooth rotates the work abutted to protruding portion 21a with limiter 22 from the original state to be exerted a force by rotary body force application component 27 Make state.

In addition, bracket 23 is installed on toothed ratchet 6.In toothed ratchet 6 in the initial state, 23, bracket In the lower section of toothed ratchet 6.It is fixed on the bracket 23 concrete example for showing the active gage force application component of the present invention One end of extension spring (draft helical spring) 24.

Active gage 7 is shaped generally as rectangular plate, the plane of a side and the plane card of the opposing party of toothed ratchet 6 Being combined into can slide.Perforative through hole 25 in a thickness direction is equipped on active gage 7 (with reference to Fig. 2).25 edge of through hole The long side direction extension of active gage 7, and with for 11 perforative first breakthrough part 25a of fulcrum and for aftermentioned connecting shaft 28 Perforative second breakthrough part 25b.

The size and the diameter of fulcrum 11 of the width of first breakthrough part 25a are roughly equal, the width of the second breakthrough part 25b The diameter of size and connecting shaft 28 is roughly equal.Therefore, active gage 7 is guided and by fulcrum 11 and connecting shaft 28 along connection Fulcrum 11 and the line of connecting shaft 28 are moved.In the case where toothed ratchet 6 is in original state, connection fulcrum 11 is with connecting The line of spindle 28 becomes parallel or substantially parallel with lifting direction.Then, the first breakthrough part 25a of active gage 7 is passed through with second The lower section (descent direction) of logical portion 25b is continuous.

One end on the long side direction of active gage 7 is equipped with engaging protrusion 26.In usual operating, engaging protrusion 26 is located at Than the outer diameter position in the inner part of toothed ratchet 6, even if in the case of being rotated in malaria 4,5 does not engage with pendulum pawl 19.Separately Outside, the other end on the long side direction of active gage 7 is fixed with the other end of extension spring 24.

In the case where toothed ratchet 6 is in original state, active gage 7 be stretched spring 24 spring force stretch and match It puts in the position of readiness to exert a force to 23 side of bracket.Then, active gage 7 is being applied in the force (spring force) that overcomes extension spring 24 Power when, moved by the direction that fulcrum 11 and connecting shaft 28 guide and be directed away from bracket 23.

Boots mechanism 8 has connecting rod 31, spring shaft 32, control arm 33, force application spring 34 and brake shoe 35.

Connecting rod 31 is formed as rodlike, and is rotatably supported in the fixed connecting shaft 28 on toothed ratchet 6.Connection Axis 28 is protruded from the plane of the opposing party of toothed ratchet 6, as described above, the second breakthrough part 25b through active gage 7.Then, The one end of connecting rod 31 is supported as that can rotate through the part of active gage 7 in connecting shaft 28.

Spring shaft 32 is inserted into the end of the opposing party of connecting rod 31 in a manner of it can slide.In spring shaft 32 with connecting The end of 31 opposite side of bar is equipped with spring seat portions 32a.Then, spring shaft 32 is through control arm 33, force application spring 34.

Control arm 33 has for 32 perforative axis through-Penetration portion 33a of spring shaft and is continuously propped up with axis through-Penetration portion 33a Bearing portion 33b.Axis through-Penetration portion 33a is configured between connecting rod 31 and force application spring 34.Supported portion 33b is rotatably supported in Fixed fulcrum post 36 on base station 2.

Force application spring 34 is, for example, compression helical spring, and the axis through-Penetration portion 33a of control arm 33 is carried out to 31 side of connecting rod Force.That is, one end of force application spring 34 is abutted with spring seat portions 32a, the axis of the other end and control arm 33 of force application spring 34 passes through Wear portion 33a abuttings.

It should be noted that it in the present embodiment, is applied as by the axis through-Penetration portion 33a of control arm 33 to 31 side of connecting rod The force application component of power and used compression helical spring, but as the force structure that exerts a force of control arm 33 to the present invention Part can also use other elastic components such as the spring other than compression helical spring or rubber.

Brake shoe 35 is rotatably supported in the supported portion 33b of control arm 33, and with being wound in the speed governing of rope sheave 3 with hanging Rope 1 is opposed.In the case that in the rotation with toothed ratchet 6, correspondingly Shi Xue mechanisms 8 act, which presses on speed governing With hoist cable 1.

Next, active gage operating mechanism 9 is illustrated with reference to Fig. 3 and Fig. 4.

Fig. 4 is the schematic diagram for representing active gage operating mechanism 9.

It is fixed on the support rod 41 of active gage 7 as shown in figure 3, active gage operating mechanism 9 has, connect with support rod 41 Cable 42 and the cable handle part 43 that cable 42 is held using frictional force.Support rod 41 is fixed on the opposing party of active gage 7 Plane on, it is and prominent to the side opposite with toothed ratchet 6.Cable 42 extends along lifting direction (upper and lower directions), and Lower end is connect with support rod 41.

As shown in figure 4, cable handle part 43, which has, clips the opposed affixed side holding piece 45 of cable 42 and rotating side handle Piece 46 is held, rotating side holding piece 46 is supported into axis 47 for that can rotate and rotating side is held into piece 46 towards affixed side handle Hold the force application spring 48 of 45 side of piece force.The cable handle part 43 makes affixed side hold piece 45 and rotating side holding piece 46 and line Frictional force is generated between cable 42 and holds cable 42.

The frictional force generated between affixed side holding piece 45 and rotating side holding piece 46 and cable 42 compares extension spring The spring force of 24 (with reference to Fig. 3) is big.Therefore, when overcome affixed side hold piece 45 and rotating side hold piece 46 and cable 42 it Between the frictional force that generates and when lifting cable 42, active gage 7 is risen by fulcrum 11 and the guiding of connecting shaft 28.Moreover, work as When releasing the lifting of cable 42, cable 42 is held by cable handle part 43, and active gage 7 is maintained at the position of rising.

[action of governor when usually operating]

Next, with reference to Fig. 5 to usually operating when the action of governor 200 illustrate.

Fig. 5 is the definition graph of the state of the active gage 7 when representing usually to operate.

As shown in figure 5, in lift appliance 100 in usual operating, the toothed ratchet 6 of governor 200 becomes initial State, active gage 7 are configured at position of readiness.Therefore, the engaging protrusion 26 of active gage 7 is located at the outer diameter than toothed ratchet 6 Position in the inner part.

When lifting body 300 declines (with reference to Fig. 1), speed governing hoist cable 1 moves together with lifting body 300 and makes 3 court of rope sheave To R1 directions (with reference to Fig. 2) rotation.Centrifugal force is acted on to malaria 4,5 as a result, when the centrifugal force is more than the resistance of balancing spring 20 When, malaria 4,5 is rotated centered on balance staff 15a, 15b.

When the decrease speed of lifting body 300 (with reference to Fig. 1) reaches the first supervelocity (being, for example, 1.3 times of normal speed) When, one end 4a, 5a of malaria 4,5 for being rotated centered on balance staff 15a, 15b are contacted with detection switch (not shown). Governor 200 detects that the lifting speed of lifting body 300 reaches the first supervelocity as a result,.Then, governor 200 is cut off respectively The electricity of the power supply for driving the driving device (not shown) of traction sheave 600 and the control device (not shown) for controlling the driving device Source.

In addition, when the decrease speed of lifting body 300 reaches the second supervelocity (being, for example, 1.4 times of normal speed), with The pendulum pawl 19 of malaria 4 rotated centered on balance staff 15a engages, and make toothed ratchet 6 with the teeth portion of toothed ratchet 6 It is rotated towards R1 directions.That is, governor 200 carries out trip operation.When toothed ratchet 6 is rotated, 31 direction of connecting rod R1 directions are moved, and control arm 33 is rotated centered on fulcrum post 36 to R1 directions.

When control arm 33 is rotated to R1 directions, brake shoe 35, which is pressed on, is wound in the speed governing of rope sheave 3 on hoist cable 1, and Tension is applied to speed governing hoist cable 1.The mobile stopping of speed governing hoist cable 1, lifting body 300 continue to decline as a result,.As a result, The working beam 900 (with reference to Fig. 1) linked with speed governing hoist cable 1 is lifted, and emergency braking apparatus 800 is made to work, so as to make lifting 300 mechanicalness emergent stopping of body.

[action of governor during maintenance test operation]

Next, with reference to Fig. 6~Fig. 9 to maintenance test operation when the action of governor 200 illustrate.

Fig. 6 is the definition graph for representing the state that active gage 7 is moved from position of readiness.Fig. 7 is to represent active gage 7 and malaria 4 Engage the definition graph of state for rotating toothed ratchet 6 and carrying out forcing trip operation.Fig. 8 is to represent shown in Fig. 7 strong Trip operation processed acts the definition graph for the state that lifting body 300 is made to increase.Fig. 9 is to represent that active gage 7 restores to the shape of position of readiness The definition graph of state.

In maintenance test operation, confirm whether emergency braking apparatus 800 works normally.

In order to confirm whether emergency braking apparatus 800 works normally, as shown in fig. 6, operator enters liftway 1100 It is interior, overcome the frictional force generated between cable handle part 43 and cable 42 and lift cable 42.

Active gage 7 is risen by fulcrum 11 and the guiding of connecting shaft 28 as a result,.By the cable 42 of operator's lifting by line Cable handle part 43 is held, and therefore, even if operator discharges cable 42, active gage 7 is also held at the position of rising.When confirmation work When making piece 7 and being maintained at the position of rising, operator comes out from liftway 1100.

In operator after liftway 1100 comes out, decline lifting body 300.Rope sheave 3 and malaria 4,5 as a result, It is rotated towards R1 directions, the pendulum pawl 19 of malaria 4 engages with the engaging protrusion 26 of active gage 7.Later, when lifting body 300 is further When declining and rotating rope sheave 3 and malaria 4,5, as shown in fig. 7, active gage 7 by malaria 4 press and centered on fulcrum 11 into Row rotation.

Run through the connecting shaft 28 for having and being fixed on toothed ratchet 6 in the second breakthrough part 25b of active gage 7.Therefore, with branch The active gage 7 rotated centered on axis 11 presses connecting shaft 28 towards R1 directions, makes toothed ratchet 6 and active gage 7 It is rotated together towards R1 directions.That is, governor 200 carries out pressure trip operation.

When toothed ratchet 6 is rotated towards R1 directions, the feelings of the second supervelocity are reached with the decrease speed of lifting body 300 Condition similarly makes connecting rod 31 be moved (with reference to Fig. 2) towards R1 directions, and control arm 33 is centered on fulcrum post 36 towards and to R1 side To being rotated.

When control arm 33 is rotated towards R1 directions, brake shoe 35, which is pressed on, is wound in the speed governing of rope sheave 3 on hoist cable 1, And tension is applied to speed governing hoist cable 1.As a result, the working beam 900 (with reference to Fig. 1) linked with speed governing hoist cable 1 is lifted, Emergency braking apparatus 800 is made to work, makes 300 mechanicalness emergent stopping of lifting body.

It should be noted that when toothed ratchet 6 is rotated towards R1 directions, protruding portion 21a and the limiting of snap-latch piece 21 Device 22 abuts, and is rotated so as to limit toothed ratchet 6 towards R1 directions.Thereby, it is possible to make brake shoe 35 will not be infinitely by writing that surpasses all the others The speed governing hoist cable 1 of rope sheave 3 is around in, brake shoe 35, rope sheave 3 etc. can be avoided damage to.

In addition, when active gage 7 is rotated towards R1 directions, the support rod 41 for being fixed on active gage 7 is carried out towards R1 directions Rotation.At this point, the power that cable 42 is exceeded the frictional force generated between cable handle part 43 and cable 42 pulls.Line as a result, Cable 42 is gone out from cable handle part 43 towards 41 layback of support rod.

After the work that confirmed emergency braking apparatus 800, operator rises lifting body 300.As a result, rope sheave 3 with And malaria 4,5 is rotated towards R2 directions, the pressing of the engaging protrusion 26 towards active gage 7 of the pendulum pawl 19 based on malaria 4 is solved It removes.Then, toothed ratchet 6 is rotated by the force of rotary body force application component 27 towards R2 directions, and is restored to original state.

When toothed ratchet 6 is rotated towards R2 directions, the connecting shaft 28 of toothed ratchet 6 is fixed on by 7 court of active gage It is pressed to R2 directions, active gage 7 is made to be rotated together towards R2 directions with toothed ratchet 6.It should be noted that working Piece 7 towards R1 directions rotate when cable 42 gone out from cable handle part 43 towards 41 layback of support rod, therefore, when 7 court of active gage When being rotated to R2 directions, as shown in figure 8, the cable 42 of pull-out amount is bent.

It is bent by the cable 42 for making pull-out amount, eliminates the power for the position that active gage 7 is maintained to rising, active gage 7 Be stretched spring 24 spring force pull, as shown in figure 9, being moved to position of readiness.

In this way, in the present embodiment, if lifting active gage 7 using cable 42, even if operator does not operate tune later Fast device 200, is also able to confirm that whether emergency braking apparatus 800 works normally.In addition, confirmed emergency braking apparatus 800 just Often after work, it even if operator does not operate governor 200 and lifting body 300 is only made to increase, also can restore governor 200 State before to maintenance test (before lifting active gage 7 using cable 42).

In addition, in the present embodiment, the structure of the movement of fulcrum 11 and the guiding active gage 7 of connecting shaft 28 is set as, by This, do not need to reset for guide active gage 7 movement component, can realize the reduction of number of components.

More than, the embodiment of governor and lift appliance for the present invention also illustrates its function and effect.So And governor and lift appliance of the invention is not limited to above-mentioned embodiment, can not depart from claims It is subject to various modifications implementation in the range of the purport of recorded invention.

For example, in the above-described embodiment, it is set as fulcrum 11 and structure for that can rotate is supported by toothed ratchet 6, if Fulcrum 11 for rope sheave 3 doubles as the structure of the axis of toothed ratchet 6.But as the present invention rotary body (toothed ratchet), It can also be set as the structure pivoted about with the axis different from rope sheave 3.

In addition, in the above-described embodiment, extension spring 24 is used as active gage force application component.But make The compressed spring of active gage 7 is pressed for active gage force application component of the invention or to 23 side of bracket.In addition, as this The active gage force application component of invention, however it is not limited to which spring can also use other elastic components such as rubber.

In addition, in the above-described embodiment, balancing spring (compression spiral bullet is used as malaria force application component Spring) 20.But the malaria force application component as the present invention or the close branch of the other end 4b directions relative to malaria 4 The direction of axis 11 carries out displacement and generates the draft helical spring of resistance.In addition, the malaria force application component as the present invention, not It is limited to spring, other elastic components such as rubber can also be used.

In addition, in the above-described embodiment, lift car is set as lifting body 300.But as the lifting of the present invention Body or balance weight 400.

Claims (4)

1. a kind of governor, which is characterized in that

The governor has：

Rope sheave is rotatably disposed in liftway, and is wound with the speed governing hoist cable being connect with lifting body；

Malaria is installed in rotation on the rope sheave, and utilizes the centrifugal force acted in the case of rope sheave rotation And it is rotated；

Malaria force application component exerts a force to the direction of the malaria towards the rotation for overcoming the malaria, when the centrifugal force When reaching more than specified value, the malaria force application component allows the rotation of the malaria；

Rotary body is rotatably disposed in the liftway, and the malaria with being rotated using the centrifugal force Engage and rotated；

Boots mechanism links with the rotary body, and is acted and to the speed governing hoist cable by the rotation of the rotary body It is braked；

Active gage movably engages with the rotary body, and is rotated together with the rotary body；And

Active gage operating mechanism makes the active gage mobile and makes the active gage and carry out the rotation based on the centrifugal force Malaria engaging before,

The active gage operating mechanism has：

Cable links with the active gage；And

Cable handle part generates frictional force between the cable and holds the cable.

2. governor according to claim 1, which is characterized in that

The governor has：

Active gage force application component exerts a force to the active gage, make active gage configuration with carry out based on it is described from The position of readiness that the malaria before the rotation of mental and physical efforts does not engage；And

Rotary body force application component exerts a force to the rotary body, and the rotary body is set as not make the boots mechanism action Original state,

It is more than the force of the active gage force application component by the frictional force that the cable handle part generates.

3. governor according to claim 1 or 2, which is characterized in that

The rotary body is rotatably supported in fulcrum, which is that can rotate by rope sheave bearing,

The boots mechanism is rotatably supported in the fixed connecting shaft on the rotary body,

The active gage is guided and moved by the fulcrum and the connecting shaft.

4. a kind of lift appliance, has：

Lifting body is configured in liftway；

Main hoist cable, lifting body described in hanging holding；

Traction sheave is wound with the main hoist cable, and drives the main hoist cable and lift the lifting body；

Speed governing hoist cable connect with the lifting body and is moved together with the lifting body；

Emergency braking apparatus makes the lifting body emergent stopping；And

Governor in the case of the supervelocity for reaching faster than normal speed in the lifting speed of the lifting body, makes described tight Anxious brake apparatus acts and makes the lifting body emergent stopping,

It is characterized in that,

The lift appliance has：

Rope sheave is rotatably disposed in the liftway, and is wound with the speed governing hoist cable；

Malaria is installed in rotation on the rope sheave, and utilizes the centrifugal force acted in the case of rope sheave rotation And it is rotated；

Malaria force application component exerts a force to the direction of the malaria towards the rotation for overcoming the malaria, when the centrifugal force When reaching more than specified value, the malaria force application component allows the rotation of the malaria；

Rotary body is rotatably disposed in the liftway, and the malaria with being rotated using the centrifugal force Engage and rotated；

Boots mechanism links with the rotary body, and is acted and to the speed governing hoist cable by the rotation of the rotary body It is braked；

Active gage movably engages with the rotary body, and is rotated together with the rotary body；And

Active gage operating mechanism makes the active gage mobile and makes the active gage and carry out the rotation based on the centrifugal force Malaria engaging before,

The active gage operating mechanism has：

Cable links with the active gage；And

Cable handle part generates frictional force between the cable and holds the cable.