CN102070059A - Hydraulic speed limiting elevator - Google Patents

Hydraulic speed limiting elevator Download PDF

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Publication number
CN102070059A
CN102070059A CN2011100007280A CN201110000728A CN102070059A CN 102070059 A CN102070059 A CN 102070059A CN 2011100007280 A CN2011100007280 A CN 2011100007280A CN 201110000728 A CN201110000728 A CN 201110000728A CN 102070059 A CN102070059 A CN 102070059A
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CN
China
Prior art keywords
hydraulic
car
gear
actuating cylinder
elevator
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CN2011100007280A
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Chinese (zh)
Inventor
张向阳
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张向阳
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Priority to CN2011100007280A priority Critical patent/CN102070059A/en
Publication of CN102070059A publication Critical patent/CN102070059A/en

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Abstract

The invention discloses a hydraulic speed limiting elevator, and relates to lifting equipment. The elevator comprises a shaft wall, a cage frame and a hydraulic speed limiting device arranged on the cage frame, wherein the hydraulic speed limiting device comprises a hydraulic cylinder and a hydraulic rod, the hydraulic rod is arranged in a chamber of the hydraulic cylinder, the hydraulic rod is provided with a plunger, the plunger is provided with a throttling orifice, and one end or two ends of the hydraulic rod extends or extend out of the chamber of the hydraulic cylinder. The left and right inner sides of the shaft wall are symmetrically provided with cage guide rails, the cage guide rails are provided with racks and roller grooves, the left and right outer sides of the cage frame are symmetrically provided with gears and rollers, the gears are engaged with the racks of the cage guide rails, and the rollers are matched with the roller grooves; and the hydraulic rod or the hydraulic cylinder is fixedly connected with the cage frame, and correspondingly, the hydraulic cylinder or the hydraulic rod is in transmission connection with the gears through a deceleration mechanism. The hydraulic speed limiting device has simple structure and reliable work, the cage has high running safety, and the elevator has low overall manufacturing cost. The elevator is mainly used for low-storey residences, particularly old low-storey residences of less than 9 storeys.

Description

A kind of hydraulic pressure speed limit elevator

Technical field

The present invention relates to a kind of lifting means, particularly relate to a kind of elevator with safety guard.

Background technology

Hoistway is the running space of lift car, around the hoistway is well enclosure, well enclosure is body of wall or the works that is used for separating between hoistway and other places, described works can be the framework that civil engineering is formed, the also headframe that can be made up of metal frame, the well enclosure of modem elevator is generally body of wall.Well enclosure or headframe are provided with guide rail, and car is provided with leads boots, and car slides on guide rail by leading boots, make car keep correct running route in hoistway.

The traction technology of modem elevator is very ripe, but the greatest drawback that traction drives is: car and well enclosure are sliding block joint, car with steel rope by traction sheave with to reconnecting, it between steel rope and the traction sheave frictional transmission, and the reliability of frictional transmission is relatively poor, in case electronic control system is malfunctioning or steel rope and traction sheave skid even rupture, car will get out of hand and the major accident of squatting the end or rushing to summit.

For improving safety and the reliability that traction drives, towed elevator has been set very high safety factor (more than 10-12 times), and correspondingly is provided with a series of mechanical safety devices and electric safety device.Mechanical safety device comprises velocity limiter, safety tongs, energy disperser etc., and wherein safety tongs is crucial safety device.When elevator stall was fallen, the voussoir on the velocity limiter pulling safety tongs blocked guide rail firmly, forces car to stop.The effect of safety tongs is sudden and enforceable, has very big instant impact, and this impulsive force not only can damage guide rail and other mechanical parts, and can bring discomfort to the occupant.Simultaneously, safety factor that towed elevator is very high and the complicated also inevitable cost that increases elevator greatly of safety guard.

Summary of the invention

Above-mentioned defective at existing towed elevator safety guard exists the purpose of this invention is to provide a kind of hydraulic pressure speed limit elevator, and the speed-limit device of described elevator is simple in structure, reliable operation, and cage operation is safe, and the elevator overall cost is lower.

The objective of the invention is to be achieved through the following technical solutions: a kind of hydraulic pressure speed limit elevator, comprise well enclosure, car frame, described elevator comprises the hydraulic pressure speed-limit device of being located at car frame, described hydraulic pressure speed-limit device comprises hydraulic actuating cylinder and hydraulic stem, hydraulic stem is located at the hydraulic actuating cylinder chamber, hydraulic stem is provided with plunger, and plunger is provided with metering hole, and it is outdoor that hydraulic cylinder cavity is stretched out in the hydraulic stem one or both ends.The effect of metering hole is to limit the quantity of mobilely, and when plunger moved with normal speed, metering hole was very little to the damping of hydraulic oil, and when the motion of plunger hypervelocity, metering hole can produce damping to hydraulic oil, and it is big more to exceed the speed limit, and damping is big more;

The left and right inboard of described well enclosure is arranged with car guide rail, described car guide rail is provided with tooth bar and slot rolling, the left and right outside of described car frame is arranged with gear and roller, the tooth bar engagement on described gear and the car guide rail, and described roller cooperates with slot rolling; Wheel and rack engagement and roller cooperate with slot rolling not only for cage operation provides guide function, and the sliding block joint of car and well enclosure changed into are connected with a joggle.

Because the range ability of car is long, the stroke of plunger is lacked, so must be connected by speed reduction gearing between gear and the hydraulic pressure speed-limit device.At car frame the hydraulic pressure speed-limit device is installed and can be taked two kinds of schemes: the one, described hydraulic stem and car frame are affixed, and are in transmission connection by speed reduction gearing between hydraulic actuating cylinder and the gear; The 2nd, described hydraulic actuating cylinder and car frame are affixed, and are in transmission connection by speed reduction gearing between hydraulic stem and the gear.

Hydraulic actuating cylinder of the present invention can be done further improvement, and described hydraulic actuating cylinder comprises throttle pipe, and described throttle pipe two ends and hydraulic actuating cylinder chamber upper/lower terminal hole connect, and throttle pipe is provided with flow regulating valve; Throttle pipe is the hydraulic oil accessory channel, adds throttle pipe and flow regulating valve and can adapt to the needs that lift car frequently quickens, slows down better.

On address, hydraulic actuating cylinder or hydraulic stem can be affixed with car frame, but consider that the installing space of car frame is limited, preferred version is that hydraulic stem and car frame are affixed.It is available that hydraulic stem and car frame are connected with two kinds of schemes:

The one, described hydraulic stem two ends stretch out the hydraulic actuating cylinder chamber and car frame affixed.Described speed reduction gearing comprises worm screw, worm gear, speed limit gear and tooth bar, and described worm screw sets firmly with gear is coaxial, and described worm gear sets firmly with the speed limit gear is coaxial, and described tooth bar is fixedly arranged on hydraulic actuating cylinder, described speed limiting gear wheel and rack engagement;

The 2nd, described hydraulic stem upper end is stretched out the hydraulic actuating cylinder chamber and is connected with car frame.Described speed reduction gearing comprises worm screw, worm gear, speed limit gear, tooth bar and guide wheel, described hydraulic actuating cylinder comprises the hydraulic actuating cylinder frame, described worm screw sets firmly with gear is coaxial, described worm gear sets firmly with the speed limit gear is coaxial, described tooth bar and guide wheel are located at the hydraulic actuating cylinder frame, described speed limiting gear wheel and rack engagement; Described car frame is provided with the hydraulic actuating cylinder guide groove, and described guide wheel cooperates with the hydraulic actuating cylinder guide groove.

Hydraulic pressure speed limit elevator of the present invention also comprises actuating device, and described actuating device can be located at the machine room at well enclosure top and adopt traction to drive, and also can be located at car frame, and drives by tooth bar on the car guide rail and the gear mesh of being located at car frame.When actuating device is located at car frame, described gear is a driven wheel, described actuating device comprises drive motor, motor worm, driving worm gear and axle drive shaft, described driven wheel is located at the axle drive shaft two ends, described driving worm gear is located at the axle drive shaft middle part, drives worm gear and the motor worm engagement of being located at the drive motor output shaft.

The advantage of hydraulic pressure speed limit elevator of the present invention is:

1, the hydraulic pressure speed-limit device is simple in structure, reliable operation.The principle of work of hydraulic pressure speed-limit device is: drive shaft is moved and up-and-down movement with elevator by the plunger that speed reduction gearing drives in the hydraulic actuating cylinder, and hydraulic oil is then by current downflow on the metering hole on the plunger; When elevator normally moved, the resistance that hydraulic oil flows in metering hole was very little, and when elevator overspeed moved, hydraulic oil increased by the resistance of metering hole, and piston movement speed is slowed down, and so feeds back to drive shaft, forces deceleration of elevator until normal operation.The hydraulic pressure speed-limit device is a mechanical safety device, and it is connected by worm-gears and rack-and-pinion with driven wheel, and is simple in structure, reliable operation, and speed limit is steady, can not produce impulsive force, ride comfort;

2, cage operation is safe.As the extraordinary lifting means very high to security requirement, the car frame of towed elevator itself does not have brake equipment and speed-limit device, even car frame is provided with said apparatus, because well enclosure and car are sliding block joint, these devices can not play a role.Adopt rack pinion to be connected with a joggle between well enclosure of the present invention and the car frame, this method of attachment is safe and reliable, transmitting ratio is accurately arranged, make car frame that speed-limit device is set and brake equipment becomes possibility, particularly this method of attachment cooperates with the hydraulic pressure speed-limit device of being located at car frame together, improved the safety and the reliability of cage operation greatly, made car stall, out-of-control phenomenon can not take place;

3, the elevator overall cost is lower.Because car is provided with hydraulic pressure speed-limit device and brake equipment; these devices are safe and reliable, can effectively control the operation of car, so the safety factor of hydraulic pressure speed limit elevator of the present invention can reduce; safety guard can be simplified, and therefore can reduce the overall cost of elevator.

Description of drawings

Fig. 1 hydraulic pressure speed limit of the present invention elevator solution 1 scheme drawing

Fig. 2 hydraulic cylinder structure scheme drawing of the present invention

Fig. 3 hydraulic pressure speed limit of the present invention elevator solution 2 scheme drawings

Fig. 4 hydraulic pressure speed-limit device of the present invention structure transparent view

Fig. 5 hydraulic actuating cylinder frame of the present invention transparent view

Fig. 6 actuating device transparent view of the present invention

Fig. 7 adjustable bearings seat of the present invention scheme drawing

Fig. 8 hydraulic pressure speed-limit device of the present invention speed reduction gearing scheme drawing

Fig. 9 hydraulic actuating cylinder guiding mechanism of the present invention scheme drawing

The well enclosure that Figure 10 the present invention is made up of derrick cooperates scheme drawing with car

Figure 11 elevator well frame transparent view of the present invention

Figure 12 standard derrick of the present invention scheme 1 transparent view

Figure 13 standard derrick of the present invention scheme 2 transparents view

Figure 14 car guide rail of the present invention cooperates scheme drawing with the gear roller

Among the figure: standard derrick 1 car 2 drive units, 3 hydraulic speed limiting device 4 counterweights, 5 well enclosures 8 layers of door frame, 11 underframe 12 columns, 101 front-axle beams, 102 beams, 103 back rest 104 curb girders, 105 tie rods or 115 pairs of heavy rail framves of stiffener 106 Connection Blocks, 107 connecting hole 108 car guide rails, 110 slot rolling 110B pin-and-hole 110C rail brackets 111 traction sheaves 112 layers of door chute, 113 counter weight guide tracks, 116 pulleys, 121 car frames, 21 rollers, 22 hydraulic cylinder guide grooves, 24 blimps, 28 drive motors, 31 motor worms, 32 motor racks, 33 driving shafts, 34 gears 35 drive worm gear 36 bearings 37 bearing block 37A axle bed framves 38 set screw 39 hydraulic cylinders 41 hydraulic cylinder framves 42 reducing gears 43 hydraulic stems 412 plungers 413 metering holes 414 conical plugs 415 throttle pipes 416 choke valves 417 guide wheels 421 worm screws 431 worm gears 432 worm-wheel shafts 433 worm gear pedestals 434 speed limit gears 435 tooth bars 436

The specific embodiment

Preferred embodiment: as Figure 10, Fig. 3, shown in Figure 6, hydraulic pressure speed limit elevator of the present invention comprises well enclosure 8, car 2, actuating device 3 and hydraulic pressure speed-limit device 4.Described well enclosure 8 is a headframe, and car 2 moves in headframe.Headframe is the number of plies that floor is installed according to elevator, the metal frame that is assembled by the high strength bolt lamination by the standard derrick 1 more than 2.

As shown in figure 12, described standard derrick 1 comprises 101,3 back rest of 4 columns 104 and each 3 left and right curb girder 105; Described column 101 is distributed in four jiaos of derrick, and its top and bottom water level land are installed with Connection Block 107, and Connection Block 107 is provided with the connecting bore 108 more than 4; The described back rest 104 and left and right curb girder 105 two ends join with the upper, middle and lower section of column 101 respectively, are provided with tie rod 106 between the back rest 104 of described homonymy and between the left and right curb girder 105 of homonymy;

Described standard derrick 1 also comprises 2 front-axle beams 102 and 1 door beam 103 that homonymy is provided with, the upper and lower end of described front-axle beam 102 two ends and column 101 joins, and door beam 103 is located at the centre of upper and lower front-axle beam 102 and join with the stage casing of column 101, interior spacing between described door beam 103 and the last front-axle beam 102 is 2000mm, and the purpose of reserving this spacing is that elevator door is installed for convenience; Be provided with brace panel 106 between described front-axle beam 102 down and door beam 103 and the column 101.Certainly, layer door also can be installed in the below of standard derrick 1, and at this moment the interior spacing between door beam 103 and the following front-axle beam 102 is 2000mm, then is provided with brace panel 106 between last front-axle beam 102 and door beam 103 and the column 101.

See Figure 12, Fig. 6 and Figure 14, described standard derrick 1 comprises 2 car guide rails 110, described car guide rail 110 is provided with the slot rolling 110B and the pin-and-hole 110C of tooth bar, recessed circle, for connecting upper and lower adjacent car guide rail 110 location, described car guide rail 110 is by the vertically symmetrical inboard, middle part that is installed in left and right curb girder 105 of rail brackets 111 by pin for described pin-and-hole 110C;

Described standard derrick 1 also comprises 2 left and right symmetrically arranged counterweight guide rails 115, counterweight guide rail 115 is by vertically being located at the rear inside of left and right curb girder 105 to heavy rail frame 116, counterweight guide rail 115, the structure to heavy rail frame 116 and counterweight, method of attachment are identical with existing towed elevator, will not describe in detail at this.

The layer door and the gate of present embodiment adopt the vertical switch mode of opening under the shangguan, for door mechanism system is installed, described standard derrick 1 also comprises 2 left and right symmetrically arranged layer door chutes 113 (seeing Figure 12), layer door chute 113 vertically is located at the inboard of front-axle beam 102 and door beam 103 left and right ends, and layer door chute 113 is used for the mounting layer door.Adopt vertically door opening and closing mechanism make the width of standard derrick 1 can reduce significantly (in the present embodiment, the transverse center of column 101 distance<1200mm), thereby the installation elevator is reduced to minimum to the influence of low layer resident family ventilation and lighting.

Be convenient processing and assembled on site, derrick is necessary to carry out standardized production.The unit of derrick is " joint ", and a standard derrick is called standard knot, and the design of standard knot, processing must be considered following several problems: 1, the height of typical floor; 2, safety factor; 3, tooth bar modulus; 4, with the corresponding tooth bar number of teeth of typical floor height and tooth bar length.The calibrated altitude of existing domestic floor is generally 3000mm, and with reference to the tooth bar modulus and the safety factor of building construction hoist, tooth bar modulus of the present invention can be selected between 6-8.As select 6, and tooth pitch P=18.8496, the number of teeth 160, tooth bar length ≈ 3016mm, as select 8, and tooth pitch P=25.1328, the number of teeth 120, tooth bar length ≈ 3016mm, as select 7, tooth pitch P=21.9912, the number of teeth 137, tooth bar length ≈ 3013mm.Consider the characteristics in the deadweight of hydraulic pressure speed limit elevator of the present invention, specified charge material amount and the design, tooth bar modulus on the present embodiment car guide rail 110 selects 6, the number of teeth 160, tooth bar length ≈ 3016mm, for easy to process, the height of present embodiment standard derrick 1 and the length of car guide rail 110 are 3016mm.

Described car 2 comprises car cab and car frame 21.As Fig. 3, shown in Figure 6, the left and right outside, the bottom of described car frame 21 is arranged with gear 35, the tooth bar engagement on described gear 35 and the car guide rail 110.When car 2 moved up and down, driven gear 35 was done forward and reverse rotation, and perhaps the 35 forward and reverse rotations of actuating device 3 driven gears drive the operation up and down of car 2 again.This technical scheme changes guide rail between towed elevator well enclosure 8 and the car frame 21 and the sliding block joint of leading boots into rack-and-gear between standard derrick 1 and the car frame 21 be connected with a joggle, rack-and-gear connects reliable operation, transmitting ratio is accurately arranged, make the controlled possibility that becomes of cage operation.The technical program cooperates with the following hydraulic pressure speed-limit device 4 of being located at car 2, makes cage operation stall, out-of-control phenomenon can not take place, thereby has improved the safety and the reliability of cage operation greatly.

See Fig. 3, Figure 14, for making car 2 in standard derrick 1, keep correct operation attitude, the top of car frame 21 and two bottom sides respectively are provided with one group of roller 22, roller 22 is left and right being symmetrical arranged, and slot rolling 110B protruding and on the car guide rail 110 cooperates, the both sides of roller 22 also can symmetry add a pair of guide gear, and the tooth bar engagement (guide gear is not shown among the figure) on guide gear and the car guide rail 110 is common for realizing directional tagging for cage operation.

As shown in Figure 6, the actuating device 3 of present embodiment is located at the bottom of car frame 21.The main field of employment of present embodiment is a low-rise dwelling, so be set at slower elevators, elevator speed≤1.0m/s.Therefore drive motor 31 adopts worm and wormwheel to slow down, to obtain bigger reduction ratio.Described actuating device 3 comprises drive motor 31, is located at the motor worm 32 and the axle drive shaft 34 of drive motor 31 output shafts, described gear 35 is a driven wheel, driven wheel is located at axle drive shaft 34 two ends, its middle part is provided with and drives worm gear 36, drive worm gear 36 and motor worm 32 engagements, driven wheel then with car guide rail 110 on the tooth bar engagement.The head of motor worm 32 is provided with motor frame 33, and motor frame 33 is located at car frame 21 and is provided with control apparatus, makes worm-gears keep good engagement.

When the actuating device 3 of present embodiment is located at car 2, the connection mode of the type of drive of elevator and car and counterweight also changes thereupon: type of drive changes climbing type into by the hoisting type of towed elevator, and car frame 21 connects (as Fig. 3) with steel rope 254 by pulley 121 with being connected then of counterweight 5.

Actuating device 3 is located at car frame 21 and is adopted the shortcoming of rack-and-gear engaged transmission is that noise is bigger.In order to solve noise problem, driven wheel and above-mentioned roller 22, guide gear all can adopt nylon processing or injection molded.Because nylon material transmission noise is little, resistance to abrasion is good, has vibration damping concurrently and from function such as lubricious, but and once-forming, tooling cost low.In order to reduce noise, can also around driven wheel, add semi-enclosed acoustic cladding 28 (seeing Figure 14), acoustic cladding 28 leaves opening along the sense of motion of car guide rail 110, can not produce movement interference with car guide rail 110.Simultaneously, around the bottom of car frame 21, also can add insulation board and panel or Sound-proof material, with further enhancing soundproof effect.

As Fig. 2, Fig. 3, shown in Figure 4, the hydraulic pressure speed-limit device 4 of present embodiment is located at the rear portion of car frame 21.Hydraulic pressure speed-limit device 4 comprises hydraulic actuating cylinder 41 and hydraulic stem 412, and described hydraulic stem 412 is located at hydraulic actuating cylinder 41 chambers, and hydraulic stem 412 is provided with plunger 413, and plunger 413 is provided with metering hole 414; Hydraulic actuating cylinder 41 is provided with the cylindrical metal structure of opening for one or both ends, fills with hydraulic oil in hydraulic actuating cylinder 41 chambers; The vertical installation should be grown and adopt to the design of hydraulic actuating cylinder 41 as far as possible, to reduce driving torque and to reduce reduction ratio.For guaranteeing the normal operation of plunger 413, hydraulic actuating cylinder 41 chambers and hydraulic stem 412 should have good sealing to prevent hydraulic fluid leak, also should replenish hydraulic oil regularly for hydraulic actuating cylinder 41 chambers simultaneously, or add the hydraulic oil auto-feeding device.

Described hydraulic actuating cylinder 41 comprises throttle pipe 416, and throttle pipe 416 two ends and hydraulic actuating cylinder 41 chamber upper/lower terminal holes connect, and throttle pipe 416 is provided with flow regulating valve 417.Throttle pipe 416 is accessory channels of hydraulic oil, car 2 needs to quicken continually or slow down in startup, operation or flat bed process, flow regulating valve 417 can be different according to car 2 the flow size of operating instruction automatically regulating hydraulic oil in throttle pipe 416, to adapt to the needs of car 2 different running velocitys.The size of metering hole 414 is relevant with cage operation speed, and when flow regulating valve 417 was in closed condition, the damping that 414 pairs of hydraulic oil of metering hole produce should guarantee that the running velocity of car can not surpass 115% of command speed.

See Fig. 2, hydraulic actuating cylinder 41 cavity bottom of present embodiment are installed with conical plug 415, the head of conical plug 415 is up-small and down-big, shape such as sub warhead, its afterbody cooperates with metering hole 414 and leaves certain clearance, when car 2 descending during near elevator base station, the head of conical plug 415 stretches into plunger 413 gradually, and when car 2 arrived the base station, conical plug 415 entered metering hole 414 fully.Car 2 near and arrive in the process of base station, along with plunger 413 constantly under push away, hydraulic oil is increasing by the damping of metering hole 414, and this damping feeds back to car 2 by speed reduction gearing 43, and it is out of service fully under the effect at drg to force car 2 to slow down gradually.

Because car 2 need overcome static friction force and quicken when starting, but at this moment conical plug 415 still rests in the plunger 413, to the backflow generation resistance of hydraulic oil.The scheme that addresses this problem is under the situation that conical plug 415 is set, not fill with hydraulic oil fully in hydraulic actuating cylinder 41 chambers, and keep certain space.Like this no matter car 2 in the base station or other layers door when starting, hydraulic oil can not produce resistance during by metering hole 414, be full of by hydraulic oil up to above-mentioned space, metering hole 414 just recovers its current-limiting function, thereby satisfies car needs to different running velocitys when stopping layer or starting.

Described hydraulic stem 412 both can an end stretches out hydraulic actuating cylinder 41 chambers and was connected with car frame 21, also can two ends stretches out hydraulic actuating cylinder 41 chambers and was connected with car frame 21; No matter which kind of scheme of employing all should have good sealing between hydraulic actuating cylinder 41 chambers and the hydraulic stem 412.The stroke of considering plunger 413 should grow as far as possible and the space of car frame 21 is limited, and the lower end of hydraulic stem 412 stretch out sealing arrangement is required higher, so present embodiment adopts hydraulic stem 412 upper ends to stretch out hydraulic actuating cylinder 41 chambers and car frame 21 bonded assembly schemes, sees Fig. 2.Cooperate therewith, the hydraulic actuating cylinder 41 of present embodiment has only the upper end to be provided with opening and the lower end is complete hermetically-sealed construction.

Because the range ability of car is long, the stroke of plunger is short, and when car arrived base station or station, top, plunger should just arrive the bottom or the top of hydraulic actuating cylinder 41 chambers, so must be in transmission connection by speed reduction gearing 43 between hydraulic actuating cylinder 41 and the gear 35, and require to have transmitting ratio accurately.Speed reduction gearing 43 can adopt gear cluster or compound planet gear, and reduction ratio is big because worm-gears has, compact conformation, stable working, noise are little, advantage such as transmitting ratio is arranged accurately, so present embodiment adopts worm-gears to slow down.As Fig. 4, Fig. 8, shown in Figure 9, speed reduction gearing 43 comprises worm screw 431, worm gear 432, speed limit gear 435, tooth bar 436 and guide wheel 421, hydraulic actuating cylinder 41 comprises hydraulic actuating cylinder frame 42, described worm screw 431 and gear 35 coaxial setting firmly, described worm gear 432 and speed limit gear 435 coaxial setting firmly, described tooth bar 436 and guide wheel 421 are located at hydraulic actuating cylinder frame 42, speed limit gear 435 and tooth bar 436 engagements; Described car frame 21 is provided with hydraulic actuating cylinder guide groove 24, and guide wheel 421 and hydraulic actuating cylinder guide groove 24 cooperate and form the guiding mechanism of hydraulic actuating cylinder 41.Because hydraulic actuating cylinder is provided with guiding mechanism, in order to guarantee speed limit gear 435 and tooth bar 436 good engagement is arranged, hydraulic stem 412 and car frame 21 be connected horizontal direction and vertical direction should have certain clearance, see Fig. 3.

The principle of work of hydraulic pressure speed-limit device is: plunger 413 is being separated into upper and lower two chambers in the hydraulic actuating cylinder 41, speed reduction gearing 43 converts the up-and-down movement of car 2 to the up-and-down movement of plunger 413, and extruding hydraulic oil flows to another chamber through metering hole 414 from a chamber, because metering hole 414 can only allow that a certain amount of hydraulic oil passes through, when the car overspeed, hydraulic oil increases by the damping of metering hole 414, thereby increase the resistance of motion of plunger 413, this resistance forces car to slow down until normal operation by the feedback of speed reduction gearing 43.

Hydraulic pressure speed-limit device of the present invention is simple in structure, and speed limit is steady, and the speed limit effect of hydraulic actuating cylinder 41 is progressive processes, can not produce impulsive force; Owing to adopt worm-gears to slow down between hydraulic actuating cylinder 41 and the gear 35 and rack-and-gear is in transmission connection, so the velocity limiter reliable operation, so elevator must not add the electric security protector device again, the overall cost of elevator so can reduce greatly.

Except preferred embodiment, chief component of the present invention also has the other technologies scheme:

One, standard derrick

Except that embodiment, standard derrick 1 of the present invention can be connected by layer door frame 11 and underframe 12 and form.See Figure 11, described layer door frame 11 comprises 102,3 of 101,2 front-axle beams of 4 columns or the back rest more than 3 104 and left and right curb girder 105; Column 101 is distributed in four jiaos of derrick, and its top and bottom water level land are installed with Connection Block 107, and Connection Block 107 is provided with the connecting bore 108 more than 4; Front-axle beam 102, the back rest 104 and left and right curb girder 105 two ends laterally join with column 101 respectively, the interior spacing 〉=2000mm between 2 front-axle beams 102; Between the back rest 104 of homonymy and between the left and right curb girder 105 of homonymy, be provided with tie rod or brace panel 106 between the perhaps described back rest 104, left and right curb girder 105 and the column 101.

See Figure 13, described underframe 12 comprises column 101, front-axle beam 102, the back rest 104 and left and right curb girder 105; Described column 101 is 4, and is distributed in four jiaos of derrick, and the top of column 101 and bottom water level land are installed with Connection Block 107, and Connection Block 107 is provided with the connecting bore 108 more than 4; Front-axle beam 102, the back rest 104 and left and right curb girder 105 respectively are 2, and each is affixed with the upper and lower end level of column 101 respectively at its two ends; Between the front-axle beam 102 of homonymy, be provided with tie rod or brace panel 106 between the back rest 104 of homonymy and between the left and right curb girder 105 of homonymy.

Described layer door frame 11 and underframe 12 comprise each 2 symmetrically arranged car guide rails 110 and counterweight guide rail 115, described car guide rail 110 vertically is installed in the inboard, middle part of layer door frame 11 and underframe 12 left and right curb girders 105 by rail brackets 111, and described counterweight guide rail 115 is by vertically being located at the rear inside of layer door frame 11 and underframe 12 left and right curb girders 105 to heavy rail frame 116.

Described underframe 12 can be located at the top of layer door frame 11, also can be located at the bottom of layer door frame 11, and Connection Block 107 between the two is affixed by high strength bolt.The derrick that described layer door frame 11 and underframe 12 are formed is a standard derrick 1, and the height of the accurate derrick 1 of every feast-brand mark and the length of car guide rail 110 are 3016mm, and the tooth bar modulus on the described car guide rail 110 is 6.

Because the present invention adopts door opening and closing mechanism vertically, and the width of standard derrick 1 can be reduced significantly, the design of elevator can be compact more.According among the national GB7588-1995 to the regulation of car area, when the specified charge material amount of car is 100-1250kg, the maximum payload space of car is 0.37-2.9m2, if the length of car inside face is selected between 600-2000mm, then the width of car inside face is 600-1400mm, the width between centers of left and right column 101 is 1000-1800mm, and the width between centers of promptly left and right column 101 can be selected between 1000--1800mm.

As described in embodiment, tie rod or brace panel 106 are located between the back rest 104 of homonymy, or are located between the left and right curb girder 105 of homonymy, but in other embodiments, tie rod or brace panel 106 also can be located between the back rest 104, left and right curb girder 105 and the column 101.

Column 1 both can adopt pipe, also can adopt square tube, but preferably adopted pipe, because adopt pipe that better intensity is arranged.

Two, car

Car 2 comprises car cab and car frame 21, and car cab can adopt glass-felt plastic to make, glass-felt plastic car cab intensity height, in light weight; Axle drive shaft 34 on the car frame 21 can make moving device, and brake equipment can adopt automatic guidance and/or manually operated mode.

Three, actuating device

Except embodiment was described, the present invention can also adopt the traction type of drive of existing elevator.As shown in Figure 1, drive motor 31 is located at the top of well enclosure 8, and car frame 21 is connected by traction sheave 112 and pulley 121 with counterweight 5 usefulness steel ropes 254, and drive motor 31 drives traction sheave 112 by speed reduction gearing, and then drives the rising or the decline of car.

Four, hydraulic pressure speed-limit device

Except that embodiment, the installation of hydraulic actuating cylinder 41 or hydraulic stem 412 also has other desirable schemes:

1, as Fig. 1, described tooth bar 436 is fixedly arranged on hydraulic actuating cylinder 41, hydraulic stem 412 two ends stretch out hydraulic actuating cylinder 41 chambers and car frame 21 affixed, hydraulic actuating cylinder 41 and tooth bar 436 are in transmission connection by speed reduction gearing 43 and gear 35;

2, hydraulic actuating cylinder 41 chambers are stretched out in described hydraulic stem 412 upper ends, and hydraulic stem 412 external parts are provided with tooth bar 436, and described hydraulic actuating cylinder 41 lower ends and car frame 21 are hinged, are in transmission connection by speed reduction gearing 43 between hydraulic stem 412 and the gear 35; For guaranteeing that speed limit gear 435 and tooth bar 436 have good engagement, the back of tooth bar 436 is provided with backgear;

3, hydraulic actuating cylinder 41 chambers are stretched out at described hydraulic stem 412 two ends, and tooth bar 436 is fixedly arranged on the last external part of hydraulic stem 412 or external part down, and hydraulic actuating cylinder 41 is affixed with car frame 21, is in transmission connection by speed reduction gearing 43 between hydraulic stem 412 and the gear 35; For guaranteeing that speed limit gear 435 and tooth bar 436 have good engagement, the back of tooth bar 436 and hydraulic stem 412 is provided with backgear.

The reduction ratio of speed reduction gearing 43 of the present invention is relevant with the length of the floor number of plies and hydraulic actuating cylinder 41.When elevator ran to base station or station, top, plunger 413 should just arrive the bottom or the top of hydraulic actuating cylinder 41 chambers, so the reduction ratio of speed reduction gearing 43 is the base station to the height at station, top and the ratio of the stroke of plunger 413.Because the space of car is limited, the reduction ratio of speed reduction gearing 43 can not be too little, otherwise hydraulic actuating cylinder 41 is done very longly, can't install at car; But the reduction ratio of speed reduction gearing 43 can not be too big, because too big reduction ratio can cause speed reduction gearing and transmission device to bear excessive moment, gear is crossed quick-wearing, break of gear tooth causes speed limit to lose efficacy and produce.Therefore, for stroke that increases plunger 413 and the deadweight that alleviates hydraulic actuating cylinder 41, hydraulic actuating cylinder 41 can be designed to slender structure, and vertical setting in car.

Claims (10)

1. hydraulic pressure speed limit elevator, comprise well enclosure (8), car frame (21), it is characterized in that: described elevator comprises the hydraulic pressure speed-limit device (4) of being located at car frame (21), described hydraulic pressure speed-limit device (4) comprises hydraulic actuating cylinder (41) and hydraulic stem (412), described hydraulic stem (412) is located at hydraulic actuating cylinder (41) chamber, hydraulic stem (412) is provided with plunger (413), plunger (413) is provided with metering hole (414), and stretch out outside hydraulic actuating cylinder (41) chamber described hydraulic stem (412) one or both ends;
The left and right inboard of described well enclosure (8) is arranged with car guide rail (110), described car guide rail (110) is provided with tooth bar and slot rolling (110B), the left and right outside of described car frame (21) is arranged with gear (35) and roller (22), tooth bar engagement on described gear (35) and the car guide rail (110), described roller (22) cooperates with slot rolling (110B);
Described hydraulic stem (412) is affixed with car frame (21), is in transmission connection by speed reduction gearing (43) between described hydraulic actuating cylinder (41) and the gear (35);
Perhaps, described hydraulic actuating cylinder (41) is affixed with car frame (21), is in transmission connection by speed reduction gearing (43) between described hydraulic stem (412) and the gear (35).
2. hydraulic pressure speed limit elevator according to claim 1, it is characterized in that: described hydraulic actuating cylinder (41) comprises throttle pipe (416), described throttle pipe (416) two ends and hydraulic actuating cylinder (41) chamber upper/lower terminal hole connect, and throttle pipe (416) is provided with flow regulating valve (417).
3. hydraulic pressure speed limit elevator according to claim 1 and 2, it is characterized in that: hydraulic actuating cylinder (41) chamber is stretched out at described hydraulic stem (412) two ends and car frame (21) is affixed, is in transmission connection by speed reduction gearing (43) between described hydraulic actuating cylinder (41) and the gear (35); Described speed reduction gearing (43) comprises worm screw (431), worm gear (432), speed limit gear (435) and tooth bar (436), described worm screw (431) and coaxial the setting firmly of gear (35), described worm gear (432) and coaxial the setting firmly of speed limit gear (435), described tooth bar (436) is fixedly arranged on hydraulic actuating cylinder (41), described speed limit gear (435) and tooth bar (436) engagement.
4. hydraulic pressure speed limit elevator according to claim 1 and 2 is characterized in that: described hydraulic stem (412) upper end is stretched out hydraulic actuating cylinder (41) chamber and is connected with car frame (21), is in transmission connection by speed reduction gearing 43 between described hydraulic actuating cylinder 41 and the gear 35; Described speed reduction gearing (43) comprises worm screw (431), worm gear (432), speed limit gear (435), tooth bar (436) and guide wheel (421), described hydraulic actuating cylinder (41) comprises hydraulic actuating cylinder frame (42), described worm screw (431) and coaxial the setting firmly of gear (35), described worm gear (432) and coaxial the setting firmly of speed limit gear (435), described tooth bar (436) and guide wheel (421) are located at hydraulic actuating cylinder frame (42), described speed limit gear (435) and tooth bar (436) engagement; Described car frame (21) is provided with hydraulic actuating cylinder guide groove (24), and described guide wheel (421) cooperates with hydraulic actuating cylinder guide groove (24).
5. hydraulic pressure speed limit elevator according to claim 3, it is characterized in that: described elevator comprises the actuating device (3) of being located at car frame (21), described actuating device (3) comprises drive motor (31), and described drive motor (31) is in transmission connection with gear (35).
6. hydraulic pressure speed limit elevator according to claim 5, it is characterized in that: described well enclosure (8) is a headframe, described headframe is made up of the derrick more than 2, and described derrick comprises 4 columns (101), 2 front-axle beams (102), the back rest more than 3 or 3 (104) and each left and right curb girder (105) more than 3 or 3; Described column (101) is distributed in four jiaos of derrick, and its top and bottom water level land are installed with Connection Block (107), and Connection Block (107) is provided with the connecting bore (108) more than 4; Described front-axle beam (102), the back rest (104) and left and right curb girder (105) two ends laterally join with column (101) respectively; Between the back rest of described homonymy (104) and between the left and right curb girder (105) of homonymy, be provided with tie rod or brace panel (106) between the perhaps described back rest (104), left and right curb girder (105) and the column (101);
Described derrick comprises each 2 symmetrically arranged car guide rails (110) and counterweight guide rail (115), described car guide rail (110) vertically is installed in the inboard, middle part of left and right curb girder (105) by rail brackets (111), and described counterweight guide rail (115) is by vertically being located at the rear inside of left and right curb girder (105) to heavy rail frame (116).
7. hydraulic pressure speed limit elevator according to claim 6, it is characterized in that: described derrick comprises a beam (103), described door beam (103) is located between 2 front-axle beams (102) and two ends and column (101) join, described door beam (103) and the interior spacing 〉=2000mm between the front-axle beam (102) wherein, and be provided with tie rod or brace panel (106) between another front-axle beam (102) and the column (101), also be provided with tie rod or brace panel (106) between described door beam (103) and the column (101);
Described derrick is standard derrick (1), and the length of the height of the accurate derrick of every feast-brand mark (1) and car guide rail (110) is 3016 ± 50mm, and the tooth bar modulus on the described car guide rail (110) is 6-8.
8. hydraulic pressure speed limit elevator according to claim 7, it is characterized in that: described derrick (1) comprises 2 symmetrically arranged layer door chutes (113), described layer door chute (113) vertically is located at the inboard or the outside of front-axle beam (102) and the left and right end of door beam (103), and the width between centers of described left and right column (101) can be selected between 1000--1800mm.
9. hydraulic pressure speed limit elevator according to claim 6, it is characterized in that: described derrick is layer door frame (11), interior spacing 〉=2000mm between described layer door frame (11) last 2 front-axle beam (102), described layer door frame (11) comprises underframe (12), and described underframe (12) comprises column (101), front-axle beam (102), the back rest (104) and left and right curb girder (105); Described column (101) is 4, and is distributed in four jiaos of derrick, and its top and bottom water level land are installed with Connection Block (107), and Connection Block (107) is provided with the connecting bore (108) more than 4; Described front-axle beam (102), the back rest (104) and left and right curb girder (105) respectively are 2, and its two ends laterally join with column (101) respectively; Between the back rest (104) of the front-axle beam of described homonymy (102), homonymy and the left and right curb girder (105) of homonymy, be provided with tie rod or brace panel (106) between perhaps described front-axle beam (102), the back rest (104), left and right curb girder (105) and the column (101);
Described underframe (12) can be located at the below of a layer door frame (11), also can be located at the top of a layer door frame (11), and Connection Block between the two (107) is affixed by high strength bolt; Car guide rail (110) and counterweight guide rail (115) on the described layer door frame (11) correspondingly extend to underframe (12) respectively;
The derrick that described layer door frame (11) and underframe (12) are formed is standard derrick (1), and the length of the height of the accurate derrick of every feast-brand mark (1) and car guide rail (110) is 3016 ± 50mm, and the tooth bar modulus on the described car guide rail (110) is 6-8.
10. hydraulic pressure speed limit elevator according to claim 9, it is characterized in that: described derrick (1) comprises 2 symmetrically arranged layer door chutes (113), described layer door chute (113) vertically is located at the inboard or the outside of the left and right end of front-axle beam (102), and the width between centers of described left and right column (101) can be selected between 1000--1800mm.
CN2011100007280A 2011-01-04 2011-01-04 Hydraulic speed limiting elevator CN102070059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100007280A CN102070059A (en) 2011-01-04 2011-01-04 Hydraulic speed limiting elevator

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN2011100007280A CN102070059A (en) 2011-01-04 2011-01-04 Hydraulic speed limiting elevator
CN2011203258430U CN202279599U (en) 2011-01-04 2011-09-01 Safety elevator
CN2011102566208A CN102431868A (en) 2011-01-04 2011-09-01 Hydraulic speed-limiting lift
CN2011102566299A CN102320509A (en) 2011-01-04 2011-09-01 Safety elevator
CN2011205792507U CN202481868U (en) 2011-01-04 2011-12-27 Elevator with brake in car
CN2011104624674A CN102583120A (en) 2011-01-04 2011-12-27 Elevator with brake on elevator cab

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CN102070059A true CN102070059A (en) 2011-05-25

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CN2011100007280A CN102070059A (en) 2011-01-04 2011-01-04 Hydraulic speed limiting elevator
CN2011102566208A CN102431868A (en) 2011-01-04 2011-09-01 Hydraulic speed-limiting lift
CN2011203258430U CN202279599U (en) 2011-01-04 2011-09-01 Safety elevator
CN2011102566299A CN102320509A (en) 2011-01-04 2011-09-01 Safety elevator
CN2011104624674A CN102583120A (en) 2011-01-04 2011-12-27 Elevator with brake on elevator cab
CN2011205792507U CN202481868U (en) 2011-01-04 2011-12-27 Elevator with brake in car

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Application Number Title Priority Date Filing Date
CN2011102566208A CN102431868A (en) 2011-01-04 2011-09-01 Hydraulic speed-limiting lift
CN2011203258430U CN202279599U (en) 2011-01-04 2011-09-01 Safety elevator
CN2011102566299A CN102320509A (en) 2011-01-04 2011-09-01 Safety elevator
CN2011104624674A CN102583120A (en) 2011-01-04 2011-12-27 Elevator with brake on elevator cab
CN2011205792507U CN202481868U (en) 2011-01-04 2011-12-27 Elevator with brake in car

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CN102320509A (en) 2012-01-18
CN202481868U (en) 2012-10-10
CN102583120A (en) 2012-07-18
CN102431868A (en) 2012-05-02
CN202279599U (en) 2012-06-20

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