CN106744192B - A kind of safety catch of pinion and-rack lifting device - Google Patents
A kind of safety catch of pinion and-rack lifting device Download PDFInfo
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- CN106744192B CN106744192B CN201611221127.1A CN201611221127A CN106744192B CN 106744192 B CN106744192 B CN 106744192B CN 201611221127 A CN201611221127 A CN 201611221127A CN 106744192 B CN106744192 B CN 106744192B
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- lifting device
- rack
- movable rack
- solenoid valve
- electric
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000000694 effects Effects 0.000 claims abstract description 33
- 230000007704 transition Effects 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 82
- 230000013011 mating Effects 0.000 claims description 52
- 238000004146 energy storage Methods 0.000 claims description 38
- 230000009471 action Effects 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 17
- 230000033001 locomotion Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 238000012797 qualification Methods 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
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- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 53
- 238000010586 diagram Methods 0.000 description 23
- 210000000515 tooth Anatomy 0.000 description 14
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- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0461—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with rack and pinion gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/022—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rack and pinion drives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A kind of safety catch of pinion and-rack lifting device, movable rack can be moved horizontally or be maintained on rail assembly on the position of certain determinations, main load-carrying members at the top of movable rack with lifting device car after entering on-position, which are in direct contact, either to move horizontally or is stopped on orbit hole on the position for being maintained at certain determinations by the operating mechanism manipulation activities rack of middle transition load-supporting part contact load-bearing movable rack；The position of the determination includes the application position engaged with lifting device drive rack or free position that is completely disengaged with lifting device drive rack and having an intersegmental gap；Safeguard protection braking is carried out using rack engagement system, plays the advantageous effect for significantly improving safeguard protection braking quality.
Description
Technical field
The present invention relates to lifting device safety catch fields, more particularly to a kind of pinion and-rack lifting device
Safety catch.
Background technology
The safety arrestment measure of existing pinion and-rack lifting device, or by braking to motor shaft or being
It is realized by the method for the braking to gear shaft, these methods belong to friction catch mode, exist probably due to friction material
Security risk caused by abrasion or oil pollution etc.；In addition if problem occurs for driving gear, method above-mentioned is just incompetent
For power；And gear is driven to occur what problem was possible to, therefore, to ensure that safety, pinion and-rack lifting device must match
Set the reliable safety catch for coping with and problem and similar safety problem occurring including driving gear.
Invention content
The purpose of the present invention is to provide a kind of reliably cope with and problem and similar safety occurs including driving gear
The safety catch of problem.
A kind of safety catch (hereinafter referred to as safety catch) of pinion and-rack lifting device, including, track
Component, movable rack, the operating mechanism of movable rack, the control device of operating mechanism, load-supporting part；The load-supporting part packet
Include direct load-supporting part or middle transition load-supporting part；The rail assembly (referring to Fig. 1) include upper rail 15 (in Fig. 1
And load-supporting part), lower rail 18 formed horizontal rail, guide plate 27, and for movable rack by track window aperture 11；Activity
Rack (right movable rack 16 and left movable rack 12) passes through track window aperture 11, movable rack to be associated with drive rack
Partial tooth form is in the position that can be engaged or detach with the drive rack 17 of lifting device, passes through the water on rail assembly
Translation is dynamic to be either maintained on the position of certain determinations and realizes and the engagement of drive rack or detach, the position of the determination
It sets, include the application position engaged with lifting device drive rack or is kept completely separate and has with lifting device drive rack
The free position in a bit of gap, described has a bit of gap, refers to drive rack and both movable racks corresponding thereto
Tooth top interplanar has the gap of 2~5mm；The inner face either above or below for the part of movable rack being associated with guide rail is at least
It is provided with guiding notch there are one direction, (referring to Fig. 3), one with movable rack cover board (left cover 13, right cover plate, which do not have, to be drawn)
Guide groove 26 is collectively formed in part, and guide groove 26 and the mating part of guide plate 27 are dynamic cooperation, to prevent movable rack to sedan-chair
The outside in compartment 28 or inside play；Load-supporting part at the top of movable rack after entering on-position with lifting device car
(being load-supporting part and upper rail 15 in Fig. 1) is in direct contact or contacts load-bearing by middle transition load-supporting part；Movable rack
Operating mechanism manipulation activities rack is moved horizontally or is stopped on rail assembly on the position for being maintained at certain determinations, described
The control device of the operating mechanism of movable rack includes, mechanical device or electric device or hydraulic device or pneumatic
Device or electric-liquid combined unit or electric-gas combined unit；The safety arrestment of the pinion and-rack lifting device fills
It sets, including the safety catch component being directly arranged on lifting device car, or the individual secure braking being separately provided
Device assembly is then fitted on lifting device；The electric-liquid combined unit or electric-gas combined unit includes solenoid valve
The electric, dead electricity that obtains of 30 (referring to Fig. 4), 30 coil of solenoid valve are controlled by lifting device electric control system.
Fig. 1 is a kind of structural schematic diagram for the safety catch being directly arranged on lifting device car, it is illustrated that direction
For pinion and-rack lifting device safety catch be mounted on lifting device car close to lifting device drive rack 17 certain
On the inside car side of one side, from cab interior toward car side in terms of seen in, so for lifting device drive rack 17
Its sub-fraction shown by track window aperture 11 is can only see, right movable rack 16 has dismantled right cover plate, can see clearly
Its internal structure covers the combination of the right movable rack after right cover plate and adds the combination of left cover 13 similar with left movable rack 12, and two
Person be using rack among the vertical median plane perpendicular to rack projection plane that indicates of center chain-dotted line 14 as symmetrical plane
Mirror symmetric figure, holder 7 are half section, and piston 2, cylinder body 1 are combined as full section；Movable rack and lifting is shown in Fig. 1
The application position of device drives rack engagement, Fig. 2 are in the signal of free position state for the safety catch described in Fig. 1
Figure；A kind of safety catch being directly arranged on lifting device car, including rail assembly, movable rack, work
The operating mechanism of carry-over bar, the control device of operating mechanism, load-supporting part, the rail assembly include track window aperture 11,
The horizontal rail that guide plate 27, load-supporting part and upper rail 15 and lower rail 18 are formed, the movable rack includes right movable rack
16 and left movable rack 12, the right movable rack 16 and left movable rack 12 pass through track window aperture 11, movable rack
The tooth form for the part being associated with the drive rack 17 of lifting device be in can be engaged with the drive rack 17 of lifting device or
Person separation position, (for save material and mitigate conduct oneself with dignity, tooth form inside the close lifting device car in facewidth direction, that
The part that part is not contacted with drive rack can be omitted), it is certain true by moving horizontally or being maintained on rail assembly
It realizes and the engagement of drive rack 17 or detaches, the position of the determination on fixed position, including driven with lifting device
The application position of rack engagement or the free position that a bit of gap is kept completely separate and had with lifting device drive rack,
Described has a bit of gap, and referring to drive rack and movable rack tooth top interplanar corresponding thereto has the gaps 2~5mm；It is living
Carry-over bar and the fit system of horizontal rail are dynamic cooperation, and contact surface is smooth low coefficient of friction surfaces, to be conducive to activity
The movement of rack；Fig. 3 is the A-A partial sectional views of Fig. 1, the inner face top for the part that movable rack is associated with load-supporting part
It is provided with guiding notch, guide groove 26 is collectively formed with a part for movable rack cover board (left cover 13, right cover plate, which do not have, to be drawn),
Guide groove 26 is combined into dynamic cooperation with matching for guide plate 27, to prevent movable rack to the outside of car 28 or inside play；It is right
Movable rack 16 and 12 top of left movable rack are in direct contact load-bearing after entering on-position with load-supporting part and upper rail 15；Institute
The operating mechanism for the movable rack stated includes that lever left 9, left fixed shaft 10, right fixed shaft 20, movable axis 21, is drawn right lever 19
Block 8, holder 7, spring 6, adjusting nut group 5, pull rod 4, jacking block 3, piston 2, cylinder body 1；The piston 2, cylinder body 1 include hydraulic pressure
Formula or vapour-pressure type；The operating mechanism course of work of movable rack is, when the lower interface 23 of cylinder body 1 is exhaust outlet (or oil return
Mouthful), upper interface 22 be air inlet (or oil inlet) when, 2 downlink of piston, jacking block 3 by spring 6 elastic force effect follows piston 2
Downlink and pull rod 4, pulling block 8 downlink together are driven, the movable axis 21 being fixed on pulling block 8 follows 8 downlink of pulling block, drives left thick stick
Bar 9,19 underarm of right lever are rotated around left fixed shaft 10, right fixed shaft 20 toward outside, the upper arm drive of lever left 9, right lever 19
Left movable rack 12, right movable rack 16 are moved toward 17 center position of lifting device drive rack, until being driven with lifting device
The at a fully engaged application position of rack 17, jacking block 3 stops downlink, but piston 2 continues traveling downwardly a small distance, holding and jacking block
3 have a bit of gap, to ensure left movable rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack, institute
The a bit of gap stated refers to the gaps 2~5mm；When the lower interface 23 of cylinder body 1 is air inlet (or oil inlet), upper interface 22
For exhaust outlet (or oil return opening) when, 2 uplink of piston, jacking block 3 also uplink and are driven pull rod 4, pulling block 8 by the top pressure of piston 2
Compressed spring 6, the movable axis 21 being fixed on pulling block 8 follow 8 uplink of pulling block, drive lever left 9, right lever uplink simultaneously together
19 underarms are rotated around left fixed shaft 10, right fixed shaft 20 toward inside, lever left 9, right lever 19 upper arm drive left movable rack
12, right movable rack 16 is toward the direction movement for leaving 17 center of lifting device drive rack, until with lifting device drive rack
17 are kept completely separate and have the free position in a bit of gap；Adjusting nut group 5 is used for the pressure of adjustment spring 6, and holder 7 fixes bullet
The extreme higher position of the upper surface of spring 6.
Electric-liquid combined unit or electric-gas the joint dress that the control device of the operating mechanism of the movable rack includes
It sets, including, either upper interface 22 is chosen to be air inlet (or oil inlet) or to be vented the lower interface 23 of the cylinder body 1
The state of mouth (or oil return opening), is controlled by solenoid valve 30, and the solenoid valve 30 is two-position-five-way solenoid valve, and Fig. 4 is
State of a control schematic diagram when 30 dead electricity of solenoid valve, spool is reset to initial position, solenoid valve P by action of reset spring when dead electricity
Mouthful with B mouthfuls lead to, the P mouthfuls of air inlet pipelines (or oil inlet pipe) for connecing compressed air gas source (either pressure oil oil sources), B mouthfuls connect cylinder body
1 upper interface 22, R mouthfuls with A mouthfuls logical, the R mouthfuls of air pipes that run in (or oil return line), the A mouthfuls of lower interfaces 23 for connecing cylinder body 1, at this time,
The upper interface 22 of selected cylinder body 1 is that the lower interface 23 of air inlet (either oil inlet) cylinder body 1 is exhaust outlet (or oil return opening),
2 downlink of piston, left movable rack 12, right movable rack 16 are implemented to brake with 17 positive engagement of lifting device drive rack；Fig. 5 is
State of a control schematic diagram when solenoid valve 30 obtains electric, spool is reached operating position, P mouthfuls of solenoid valve by electromagnetic force movement when obtaining electric
With A mouthfuls logical, the P mouthfuls of air inlet pipelines (or pressure oil oil sources oil inlet pipe) for connecing compressed air gas source, A mouthfuls connect and connect under cylinder body 1
Mouthfuls 23, S mouthful lead to B mouthfuls, the S mouthfuls of air pipes that run in (or oil return line), the B mouthfuls of upper interfaces 22 for connecing cylinder body 1, at this time, select cylinder
The lower interface 23 of body 1 is that the upper interface 22 of air inlet (either oil inlet) cylinder body 1 is exhaust outlet (or oil return opening), on piston 2
Row, until left movable rack 12, right movable rack 16 are kept completely separate with lifting device drive rack 17 and have a bit of gap
Free position, a bit of gap refer to the gaps 2~5mm.
The electric, dead electricity that obtains of 30 coil of solenoid valve is controlled by lifting device electric control system, and described is electrical
Further include a relay only controlled by general supply or contactor and storage in the control unit of the solenoid valve 30 of control system
Energy device, described is only connected across 30 coil of solenoid valve and storage by the relay of general supply control or the normally-closed contact of contactor
Between energy device, when lifting device obtains electric, normally-closed contact disconnects, and the connection between 30 coil of solenoid valve and energy storage device is also broken
It opens, energy storage device energy storage；When lifting device dead electricity, other electricity-loss braking devices include that the included dead electricity band brake apparatus of motor is vertical
Play a role braking, but 30 coil of solenoid valve not dead electricity immediately, it is described only by the relay of general supply control or
Contactor normally-closed contact dead electricity is closed, and so that 30 coil of solenoid valve is connect with energy storage device, energy storage device is to 30 coil of solenoid valve
When delay time (discharge time) constant design tuning is that other all electricity-loss braking devices individually complete the braking that braking needs
Between the difference of delay time is acted with electric-liquid combined unit or electric-gas combined unit；For example, certain lifting device is other
It is 3.5S, electric-liquid combined unit or electric-gas joint that all electricity-loss braking devices, which individually complete the braking time that braking needs,
Device action delay time is 0.5S, then energy storage device is (3.5S- to the delay time constant design tuning of 30 coil of solenoid valve
0.5S=) 3S, after the completion of energy storage device delay, 30 coil losing electricity of solenoid valve；When lifting device general supply is disconnected without electricity (including
After original state or dead electricity energy storage device energy release after state), lifting device remain static, 30 coil of solenoid valve
It is in original state, 2 downlink of piston by action of reset spring, until left movable rack 12, right movable rack without electricity, solenoid valve 30
16 implement to brake with the application position of 17 positive engagement of lifting device drive rack, lifting device safety device to lifting device；
When lifting device general supply is connected, the electric control system of lifting device needs obtaining for control 30 coil of solenoid valve electric according to operation
Or dead electricity, when lifting device prepares to start, the drive system of the electric control system control lifting device of lifting device is driven
Dynamic lifting device moves up a distance element, makes the lower plane and right movable rack 16 and left movable rack 12 of load-supporting part 15
Upper plane there are one microgap, the numerical value of the microgap is left movable rack 12, right movable rack 16 and lifting device
0.2~0.6 times of 17 sideshake of drive rack；Then the electromagnet of the electric control system control solenoid valve 30 of lifting device obtains
Electricity, iron core action band movable valve plug to operating position, 2 uplink of piston, until left movable rack 12, right movable rack 16 are set with lifting
Standby drive rack 17 is kept completely separate and has the free position in a bit of gap, is ready for lifting device startup；Lifting device
When needing to stop after startup, the electric control system of lifting device first disconnects lifting device motor power, motor deceleration, when
When close to stop position, such as when close to level position, the electric control system of lifting device controls 30 line of solenoid valve on schedule
Dead electricity is enclosed, initial position is reset to, controls 2 downlink of piston, until left movable rack 12, right movable rack 16 drive with lifting device
The application position of 17 positive engagement of carry-over bar；If there is abnormal conditions, such as the unexpected power down of lifting device or because lifting
Equipment overspeed protective device action power dump or because lifting device reaches the limit of guarded by location device action and cuts off the power
Etc., for lifting device general supply immediately without electricity, other electricity-loss braking devices include the included dead electricity band brake apparatus of motor at this time
Play a role braking immediately, and 30 coil losing electricity of solenoid valve after the completion of energy storage device delay, solenoid valve 30 is reset to original state, control
2 downlink of piston, left movable rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack processed, ensure that lifting
The safety of equipment；In the case of emergency braking, left movable rack 12, right movable rack 16 at the beginning may be with lifting device sliding tooths
Item 17 does not have at a fully engaged, and the peak and peak of rack may occur when worst situation is braking as shown in FIG. 6
The case where contact, temporarily becomes friction catch under the effect of elasticity at this time, if the system of lifting device whole brake apparatus at this time
Kinetic moment, which adds up, is enough to realize braking, and braking task is completed；If the braking moment of lifting device whole brake apparatus at this time
It adds up and is all not enough to prevent lifting device downslide, (because there is braking moment effect, just starting downslide can be slower),
When slipping down to the position of be staggered peak and peak, left movable rack 12, right movable rack 16 will be under elastic force promotions
It squeezes into the tooth socket of lifting device drive rack 17 (referring to Fig. 7), then as continuing to glide, continues to squeeze into, until left activity
Rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack；It is provided with one between solenoid valve 30 and air source
A hand-operated direction valve, when being used for required after power failure (such as need startup hand gear slow not in level position after emergency braking
Slowly be moved to level position), manually the control transformation P mouths (air inlet) of 30 input terminal of solenoid valve, R mouthfuls (exhaust outlets), S mouthfuls
The connection of (exhaust outlet) and air inlet pipeline either gas exhaust piping or oil inlet pipe or oil return line, controls the movement of piston 2,
To control the braking or release of safety device；Certainly the hand-operated direction valve described in is necessarily placed at securely and reliably cannot be random
It has formulated rules and regulations and has strictly implemented in the position of unlatching, it is ensured that only had qualification, authorized personnel can just open
It opens and uses.
Fig. 8 is that another concrete structure of the direct safety catch being arranged on lifting device car is illustrated
Figure is identical as a kind of rail assembly of concrete structure shown in FIG. 1, movable rack, load-supporting part；It is characterized in that manipulating
The control device of mechanism is to be pushed by the operating mechanism of aerodynamic force or hydraulic coupling control movable rack and keep movable rack
With lifting device drive rack positive engagement, the operating mechanism that movable rack is controlled by the elastic force of spring pushes and keeps activity
Rack is kept completely separate with lifting device drive rack and has a bit of gap；Another described is directly on lifting device car
The safety catch of setting includes the control dress of the operating mechanism of rail assembly, movable rack, movable rack, operating mechanism
It sets, load-supporting part, the control device of operating mechanism includes mating solenoid valve 51,51 coil of mating solenoid valve
Electricity, dead electricity are controlled by lifting device electric control system, the control list of the mating solenoid valve 51 of the electric control system
Further include a relay only control by general supply or contactor and energy storage device in member, described is controlled by general supply
Relay or the normally-closed contact of contactor be connected across between 51 coil of mating solenoid valve and energy storage device, lifting device obtains electric
When, normally-closed contact disconnects, and the connection between 51 coil of mating solenoid valve and energy storage device also disconnects, energy storage device energy storage；Lifting
When equipment dead electricity, other electricity-loss braking devices include that the included dead electricity band brake apparatus of motor plays a role braking immediately, still
51 coil of mating solenoid valve not dead electricity immediately, described is only lost by the relay or contactor normally-closed contact of general supply control
Electricity is closed, and so that 51 coil of mating solenoid valve is connect with energy storage device, delay time of the energy storage device to 51 coil of mating solenoid valve
(discharge time) constant design tuning is the braking time and electric-liquid that other all electricity-loss braking devices individually complete that braking needs
The difference of combined unit or electric-gas combined unit action delay time；For example, other all dead electricity of certain lifting device
It is 3.5S, electric-liquid combined unit or the action of electric-gas combined unit that brake apparatus, which individually completes the braking time that braking needs,
Delay time is 0.5S, then energy storage device is (3.5S-0.5S to the delay time constant design tuning of 51 coil of mating solenoid valve
=) 3S, after the completion of energy storage device delay, 51 coil losing electricity of mating solenoid valve；When lifting device general supply is disconnected without electricity (including
After original state or dead electricity energy storage device energy release after state), lifting device remain static, the mating electricity
51 dead electricity of magnet valve is reset to original state；The piping connection and working condition conversion process of the mating solenoid valve 51 are to lose
Spool is reset to initial position by action of reset spring when electric, (referring to the coupling part of the mating solenoid valve 51 and cylinder body 1 of Figure 11
Schematic diagram), P mouthfuls of solenoid valve with A mouthfuls logical, the P mouthfuls of air inlet pipelines (or pressure oil oil sources oil inlet pipe) for connecing compressed air gas source,
The A mouthfuls of lower interfaces 23 for connecing cylinder body 1, S mouthfuls with B mouthfuls logical, the S mouthfuls of air pipes that run in (or oil return line), B mouthfuls connect cylinder body 1 on connect
Mouthfuls 22, at this time, the lower interface 23 of selected cylinder body 1 be air inlet (or oil inlet), the upper interface 22 of cylinder body 1 be exhaust outlet (or
Person's oil return opening), 2 uplink of piston, until left movable rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack
Application position；It is electric when spool reached operating position by electromagnet effect is mobile, P mouthful of solenoid valve with B mouthful it is logical, P mouthfuls connect and compress sky
The air inlet pipeline (or oil inlet pipe) of gas air source (either pressure oil oil sources), the B mouthfuls of upper interfaces 22 for connecing cylinder body 1, R mouthfuls and A mouthfuls
Logical, the R mouthful air pipes that run in (or oil return line), the A mouthfuls of lower interfaces 23 for connecing cylinder body 1 at this time, select the upper interface 22 of cylinder body 1
Lower interface 23 for air inlet (either oil inlet) cylinder body 1 is exhaust outlet (or oil return opening), 2 downlink of piston, until left activity
Rack 12, right movable rack 16 and lifting device drive rack 17 are kept completely separate and have the free position in a bit of gap；To
It realizes dead electricity braking, obtains the function of electric release；The direct safety catch being arranged on lifting device car is again
A kind of operating mechanism of the movable rack of concrete structure, including, cylinder body 1, piston 2, jacking block 3, pull rod 4, adjusting nut group 5, bullet
Spring 6, holder 7, pulling block 8, movable axis 21, left single-arm lever 31, left movable mandrel 32 and left double-arm lever 34 hinge component, it is right
The hinge component of single-arm lever 37, right movable mandrel 36 and right double-arm lever 35, fixing axle 33；The operating mechanism work of movable rack
Be when mating 51 dead electricity of solenoid valve, to be reset to initial position as process, the lower interface 23 for selecting cylinder body 1 be air inlet (or into
Hydraulic fluid port), upper interface 22 be exhaust outlet (or oil return opening), 2 uplink of piston, jacking block 3 also uplink and are driven by the top pressure of piston 2
Compressed spring 6, the movable axis 21 being fixed on pulling block 8 follow 8 uplink of pulling block, promotion to enclose to uplink simultaneously together for pull rod 4, pulling block 8
It is wound on the open end of the left single-arm lever 31 on movable axis 21 and the open end uplink of right single-arm lever 37, drives left single-arm lever
31, the hinge component and right single-arm lever 37, right movable mandrel 36 and right both arms thick stick of left movable mandrel 32 and left double-arm lever 34
The hinge component of bar 35, around fixing axle 33 rotate, left double-arm lever 34, right double-arm lever 35 lower end toward the left and right sides open,
Upper end drives left movable rack 12, right movable rack 16 to be moved toward 17 center position of lifting device drive rack, until with lifting
The at a fully engaged application position of device drives rack 17 brakes lifting device；When mating solenoid valve 51 obtains electric, cylinder body 1 is selected
Lower interface 23 be exhaust outlet, upper interface 22 is air inlet, 2 downlink of piston, jacking block 3 are followed piston 2 by the elastic force effect of spring 6
Downlink and pull rod 4, pulling block 8 downlink together are driven, the movable axis 21 being fixed on pulling block 8 follows 8 downlink of pulling block while pulling
It is centered around the open end of the left single-arm lever 31 on movable axis 21 and the open end downlink of right single-arm lever 37, while being pulled left double
Arm bar 34, the lower end of right double-arm lever 35 are mobile toward centre from the left and right sides, and upper end drives left movable rack 12, right movable teeth
Item 16 is toward the direction movement for leaving 17 center of lifting device drive rack, until being kept completely separate simultaneously with lifting device drive rack 17
There is the free position in a bit of gap；Adjusting nut group 5 is used for the pressure of adjustment spring 6, the upper surface of 7 fixed spring 6 of holder
Extreme higher position；The course of work and [0007] section institute of the mating solenoid valve 51 in dead electricity braking or emergency braking
The course of work of the solenoid valve 30 stated in dead electricity braking or emergency braking is identical；Its mating solenoid valve 51 and air source it
Between setting there are one hand-operated direction valve, for it is required after power failure when, manually P mouths, the R of control transformation solenoid valve input terminal
Mouthful, S mouthfuls with the connection of air inlet pipeline either gas exhaust piping or oil inlet pipe or oil return line, control the movement of piston, from
And the braking or release of safety device are controlled, the hand-operated direction valve is necessarily placed at and securely and reliably cannot arbitrarily open
It has formulated rules and regulations and has strictly implemented in position, it is ensured that only had qualification, authorized personnel could open and make
With；Fig. 9 is in the schematic diagram of free position state for the safety catch described in Fig. 8.
Figure 10 is a kind of individual secure brake assemblies of the pinion and-rack lifting device safety catch
Schematic diagram, picture is the view for having shed bottom plate in figure, and the planar peripheral size of bottom plate is such as panel 49, with panel 49
The difference is that it does not have track window aperture 50, certain bottom plate that must also have enough load-bearing capacities above；A kind of independence
Safety catch component includes the separate space surrounded by supporting frame 48, mounting base, panel 49, described
Separate space in rail assembly, movable rack, the operating mechanism of movable rack, the control device of operating mechanism, intermediate mistake
Cross the component of load-supporting part；The rail assembly includes horizontal rail, the track window aperture 50 that upper rail 46 and lower rail 47 are formed,
The movable rack includes left movable rack 12, right movable rack 16, and the operating mechanism of the movable rack includes left thick stick
Bar 9, left fixed shaft 10, right fixed shaft 20, movable axis 21, pulling block 8, holder 7, spring 6, adjusting nut group 5, is drawn right lever 19
Bar 4, jacking block 3, piston 2, cylinder body 1, the control device of the operating mechanism include solenoid valve 30 and its connecting line, electromagnetism
Valve control circuit interface and intake line interface；The middle transition load-supporting part be load-bearing frame, be bolted or
Other connection types are connect with the load-carrying members of lifting device car；Solenoid valve control circuit interface and intake line interface and liter
The electric control circuit interface of drop equipment is connected with pipe interface；Remaining of electric-liquid combined unit or electric-gas combined unit
Part is inside lifting device；Its course of work is directly rising with one kind described in [0005] section, [0006] section, [0007] section section
The safety catch being arranged on drop equipment car is identical；The hand-operated direction valve there are one settings between solenoid valve 30 and air source,
For it is required after power failure when (such as not in level position after emergency braking, need to start hand gear and be slowly moved to flat bed
Position), manually control transformation P mouths (air inlet) of 30 input terminal of solenoid valve, R mouthfuls (exhaust outlets), S mouthfuls (exhaust outlet) and into
The connection of air pipe either gas exhaust piping or oil inlet pipe or oil return line controls the movement of piston 2, to certainly described
Hand-operated direction valve be necessarily placed at the position that securely and reliably cannot arbitrarily open, formulated rules and regulations and strictly implemented,
Ensure only have qualification, authorized personnel could open and use.
Figure 11 is another individual secure brake apparatus group of the pinion and-rack lifting device safety catch
The schematic diagram of part, picture is the view for having shed bottom plate in figure, and the planar peripheral size of bottom plate is such as panel 55, with panel
It does not have track window aperture 50, certain bottom plate that must also have enough load-bearing capacities above unlike 55；Another described
Individual secure brake assemblies include the separate space surrounded by supporting frame 54, mounting base, panel 55,
The operating mechanism of rail assembly, movable rack, movable rack in the separate space, the group of middle transition load-supporting part
Part；The rail assembly includes horizontal rail, the track window aperture 50 that load-supporting part and upper rail 46 and lower rail 47 are formed, described
Movable rack include left movable rack 12, right movable rack 16, the operating mechanism of the movable rack includes, cylinder body 1, living
Plug 2, jacking block 3, pull rod 4, adjusting nut group 5, spring 6, holder 7, pulling block 8, left single-arm lever 31, left movable mandrel 32 and a left side are double
The hinge component of arm bar 34, right single-arm lever 37, right movable mandrel 36 and right double-arm lever 35 hinge component, fixing axle
33, the control device of the operating mechanism includes, mating solenoid valve 51 and its with circuits, solenoid valve control circuit interface and
Intake line interface, the middle transition load-supporting part be load-bearing frame, be bolted or other connection types with rise
The load-carrying members connection of equipment car is dropped；The electrical control of solenoid valve control circuit interface and intake line interface and lifting device
Line interface is connected with pipe interface；The rest part of electric-liquid combined unit or electric-gas combined unit is in lifting device
Portion；Its course of work and another safety catch phase being directly arranged on lifting device car described in [0008] section
Together；It is arranged between mating solenoid valve 51 and air source when being used for required after power failure there are one hand-operated direction valve, manually
P mouths of control transformation solenoid valve input terminal, R mouthfuls, S mouthfuls and air inlet pipeline either gas exhaust piping or oil inlet pipe or oil return pipe
The connection on road controls the movement of piston, and to control the braking or release of safety device, the hand-operated direction valve must be set
It sets in the position that securely and reliably cannot arbitrarily open, formulated rules and regulations and strictly implements, it is ensured that only have qualification,
Authorized personnel could open and use.
The distance between each possible braking anchor point of lifting device of safety catch using the present invention is its drive
The integral multiple of carry-over bar tooth pitch (p=π m), therefore the installation method of the lifting device of the safety catch configured with the present invention
Including when carrying out and install related civil construction early period, it is necessary to it is accurately measured by the difference in height to stop and stop,
The difference in height for being constructed and being accurately controlled plane on sill between stop and stop to each stop sill accordingly is drive rack
The integral multiple of tooth pitch (p=π m), according to the regulation of GB/T10058, allowable error is that (construction internally controlling requirement should be less than ± 10mm
This error amount)；It is correct to adjust working in coordination for lifting device and drive rack so that lifting device when lifting device is installed
Car just stops leveling accuracy from first layer and in median, then later stop flat bed can meet the requirements, or even
When other individual flat bed element failures, stop leveling accuracy also can guarantee；And flat bed keeps precision remote excellent
The requirement of ± 20mm as defined in GB/T10058.
The present invention carries out safeguard protection braking using rack engagement system, and avoiding existing friction catch mode may go out
It is existing because security risk caused by friction material abrasion or oil pollution etc., improves the reliability of safety arrestment；Even if
Meeting driving gear, there is a situation where problems, also can reliably brake, it is ensured that safety；Its flat bed holding precision, which can reach, to be much better than
The requirement of ± 20mm as defined in GB/T10058；It significantly improves langding accuracy and safeguard protection therefore, it is possible to play and brakes quality
Advantageous effect.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the safety catch being directly arranged on lifting device car.
Fig. 2 is in the schematic diagram of free position state for the safety catch described in Fig. 1.
Fig. 3 is the A-A partial sectional views of Fig. 1.
State of a control schematic diagram when Fig. 4 is 30 dead electricity of two-position-five-way solenoid valve.
Fig. 5 is state of a control schematic diagram when two-position-five-way solenoid valve 30 obtains electric.
Fig. 6 is the peak and peak contact condition schematic diagram that rack may occur when braking.
Fig. 7 is left movable rack, right movable rack is squeezed under elastic force promotion in the tooth socket of lifting device drive rack
Schematic diagram.
Fig. 8 is that another concrete structure of the direct safety catch being arranged on lifting device car is illustrated
Figure.
Fig. 9 is in the schematic diagram of free position state for the safety catch described in Fig. 8.
Figure 10 is a kind of signal of the individual secure brake assemblies of pinion and-rack lifting device safety catch
Figure.
Figure 11 is the signal of another individual secure brake assemblies of pinion and-rack lifting device safety catch
Figure.
Figure 12 is the schematic diagram of embodiment 1.
Figure 13 is the case where safety catch of embodiment 1 brakes lifting device schematic diagram.
Figure 14 is the schematic diagram of embodiment 2.
Figure 15 is when solenoid valve is in operating position in embodiment 2, and safety catch is in signal when free position
Figure.
Specific implementation mode
Embodiment 1, Figure 12 be embodiment 1 schematic diagram, drawing show be lifting device side appearance, the safety
Brake apparatus is mounted on pinion and-rack lifting device and is temporarily in free position, lifting device prepares operation or is transporting
Situation in row, Figure 13 are the case where safety catch of embodiment 1 brakes lifting device schematic diagrames, (front
The figure left and right is inside lifting device in terms of past lifting device side, and Figure 12,13 are from the outside toward lifting device side
See, so left and right directions just reverse phase), the safety catch is necessarily mounted at the lower section of lifting device load-carrying members,
Be in direct contact or by middle transition component contact load-bearing, its internal structure each section of the safety catch of use composition and
Effect illustrates to see shown in Fig. 1~7, and described in [0005] section, [0006] section, [0007] section, embodiment 1 passes through solenoid valve control
Either hydraulic oil pushes piston motion pneumatic system or Hydraulic Elements both including pneumatic member of the present invention to compressed air processed
Either Hydraulic Elements further include other necessary pneumatic elements or Hydraulic Elements to part；Due to being related to matching for multiple transmission systems
It closes and coordinates, so should be specifically noted that workmanship and installation quality in manufacture and installation, including it is necessary described in [0011] section
The ready-made difference in height including accurately controlling plane on sill between stop and stop is the integer of drive rack tooth pitch (p=π m)
Related work again could trial operation after ensureing that necessary precision, detection are qualified；The electric control system of lifting device uses
Embedded system is as master control system, the course of work, when system is without electricity including disconnecting power switch or accidental power failure
Etc. make the disconnection of lifting device general supply, the coil losing electricity of solenoid valve 30, solenoid valve 30 are in initial by action of reset spring
State, 2 downlink of piston, left movable rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack, lifting device
Safety device is implemented to brake to lifting device；Lifting device general supply is connected, the electric control system of lifting device is according to operation
Need the coil of control solenoid valve 30 obtains electric or dead electricity, when lifting device prepares to start, the electrical control of lifting device
The drive system driving lifting device of system control lifting device moves up a distance element, makes the lower plane of load-supporting part 15
There are one microgaps with the upper plane of right movable rack 16 and left movable rack 12, and the numerical value of the microgap is left movable teeth
0.2~0.6 times of item 12, right movable rack 16 and 17 sideshake of lifting device drive rack；Then the coil of solenoid valve 30 is controlled
Electric, iron core action band movable valve plug to operating position is obtained, 2 uplink of piston up to left movable rack 12, right movable rack 16 and lifts
Device drives rack 17 is kept completely separate and has the free position in a bit of gap, is ready for lifting device startup；Lifting is set
It is standby start after when needing to stop, the electric control system of lifting device first disconnects lifting device motor power, motor deceleration,
When close to stop position, such as when close to level position, the electric control system of lifting device controls solenoid valve 30 on schedule
Coil losing electricity, be reset to initial position, control 2 downlink of piston, until left movable rack 12, right movable rack 16 are set with lifting
The application position of 17 positive engagement of standby drive rack；If occurring abnormal conditions when lifting device is currently running, such as lifting is set
It is reached the limit of for unexpected power down or because of lifting device overspeed protective device action power dump or because of lifting device
Guarded by location device action is cut off the power etc. so that lifting device general supply dead electricity, other electricity-loss braking devices include electronic
The included dead electricity band brake apparatus of machine plays a role braking immediately, after the completion of energy storage device is delayed, the coil losing electricity of solenoid valve 30,
Solenoid valve 30 is reset to original state, 2 downlink of control piston, left movable rack 12, right movable rack 16 and is driven with lifting device
17 positive engagement of rack, ensure that the safety of lifting device.
Embodiment 2, Figure 13 are also the schematic diagram of embodiment 2, it is shown that solenoid valve is in reset position, safety arrestment dress
The case where setting when implementation is braked, Figure 12 are also when solenoid valve is in operating position in embodiment 2, and safety catch is in freely
Schematic diagram when location status, the safety catch used is direct in lifting device car described in Fig. 8 and [0008] section
The explanation of the safety catch of upper setting, internal structure each section composition and effect as shown in Figure 8, and [0008] section institute
It states, due to being related to the matching coordinative of multiple transmission systems, so should be specifically noted that workmanship and installation in manufacture and installation
Quality, including described in [0011] section must ready-made include accurately controlling the difference in height of plane on sill between stop and stop
It could trial operation after ensureing that necessary precision, detection are qualified for the related work of the integral multiple of drive rack tooth pitch (p=π m)；
For the electric control system of lifting device using embedded system as master control system, the course of work is the (packet when system is without electricity
Include the state after the release of energy storage device energy after original state or dead electricity), the coil losing electricity of mating solenoid valve 51, mating electromagnetism
Valve is in initial position by action of reset spring or is reset to initial position, the interface 23 for selecting cylinder body 1 be air inlet,
Interface 22 is exhaust outlet, and 2 uplink of piston, jacking block 3 also uplink and are driven pull rod 4, pulling block 8 uplink together by the top pressure of piston 2
Compressed spring 6, the movable axis 21 being fixed on pulling block 8 follow 8 uplink of pulling block, the left list being driven around on movable axis 21 simultaneously
The open end uplink of the open end of arm bar 31 and right single-arm lever 37 drives left single-arm lever 31, left movable mandrel 32 and a left side
The hinge component of the hinge component of double-arm lever 34 and right single-arm lever 37, right movable mandrel 36 and right double-arm lever 35, around solid
Dead axle 33 rotates, left double-arm lever 34, right double-arm lever 35 lower end opened toward the left and right sides, upper end drives left movable rack
12, right movable rack 16 is moved toward 17 center position of lifting device drive rack, until complete with lifting device drive rack 17
The application position of engagement brakes lifting device, (referring to Figure 11)；When lifting device prepare start when, lifting device it is electrical
The drive system driving lifting device of control system control lifting device moves up a distance element, makes under load-supporting part 15
There are one microgaps with the upper plane of right movable rack 16 and left movable rack 12 for plane, and the numerical value of the microgap is left work
0.2~0.6 times of carry-over bar 12, right movable rack 16 and 17 sideshake of lifting device drive rack；Then mating solenoid valve is controlled
Must be electric, when mating solenoid valve obtains electric, the interface 23 of selected cylinder body 1 is exhaust outlet, interface 22 is air inlet, 2 downlink of piston, jacking block
3 are followed 2 downlink of piston by the elastic force effect of spring 6 and drive pull rod 4, pulling block 8 downlink together, the work being fixed on pulling block 8
Moving axis 21 follows 8 downlink of pulling block, pulls the open end for being centered around the left single-arm lever 31 on movable axis 21 and right single-arm lever 37
Open end downlink, while pull left double-arm lever 34, right double-arm lever 35 lower end from the left and right sides toward centre mobile, upper end
Drive left movable rack 12, right movable rack 16 toward the direction movement for leaving 17 center of lifting device drive rack, until with liter
Drop device drives rack 17 is kept completely separate and has the free position in a bit of gap, is ready, lifts for lifting device startup
Equipment is transferred to startup program；The control system control each system of lifting device works according to normal work program after startup,
When lifting device needs to stop, the electric control system of lifting device first disconnects motor power, and motor deceleration stops when close
When by position, the electric control system of lifting device controls the coil losing electricity of mating solenoid valve 51 on schedule, is reset to initial bit
It sets, controls 2 uplink of piston, until left movable rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack
Application position；If occurring abnormal conditions when lifting device is currently running, such as the unexpected power down of lifting device or because lifting
Equipment overspeed protective device action power dump or because lifting device reaches the limit of guarded by location device action and cuts off the power
Etc., lifting device general supply dead electricity at this time, other electricity-loss braking devices include the included dead electricity band brake apparatus of motor immediately
Play a role braking, and after the completion of energy storage device is delayed, mating electromagnetic valve coil dead electricity, mating solenoid valve is reset to initial shape
State, 2 uplink of control piston, left movable rack 12, right movable rack 16 and 17 positive engagement of lifting device drive rack, ensure that
The safety of lifting device.
Embodiment 3 is to install and use a kind of Gear-and-rack elevator of individual secure brake assemblies, Figure 14
For the schematic diagram of embodiment 3, it is shown that solenoid valve is in reset position, the case where when safety catch implements braking, figure
15 are, when solenoid valve is in operating position, safety catch is in schematic diagram when free position state, uses in embodiment 3
Safety catch concrete structure be a kind of individual secure brake assemblies, the individual secure brake assemblies
Load-bearing frame, is bolted or other connection types and the load-carrying members of lift car connect, solenoid valve control circuit and
The electric control circuit interface and pipe interface of intake line interface and elevator connect, as shown in Figure 10, and [0009] section institute
It states；Its internal structure is identical as the concrete structure described in [0009] section, and what internal structure each section was formed and acted on illustrates to see
Shown in Figure 10, and described in [0009] section, due to being related to the matching coordinative of multiple transmission systems, so being answered in manufacture and installation
Pay special attention to workmanship and installation quality, including described in [0011] section must ready-made include accurately controlling stop and stop
Between on sill the difference in height of plane be drive rack tooth pitch (p=π m) integral multiple related work, ensure necessary precision,
It, could trial operation after detection is qualified；The electric control system of elevator is using embedded system as master control system, the course of work
For when system is without electricity (referring to Figure 10), coil losing electricity, the spool of solenoid valve 30 are reset to initial bit by action of reset spring
It sets, P mouthfuls of solenoid valve and B mouthfuls of logical, P mouthfuls of air inlet pipeline (or the oil inlet pipes for connecing compressed air gas source (either pressure oil oil sources)
Road), the B mouthfuls of upper interfaces 22 for connecing cylinder body 1, R mouthfuls with A mouthfuls logical, the R mouthfuls of air pipes that run in (or oil return line), A mouthfuls connect cylinder body 1
Lower interface 23 at this time, selectes the upper interface 22 of cylinder body 1 as air inlet (or oil inlet), and the lower interface 23 of cylinder body 1 is exhaust outlet
(or oil return opening), 2 downlink of piston, jacking block 3 are followed 2 downlink of piston by the elastic force effect of spring 6 and drive pull rod 4, pulling block 8
Downlink together, the movable axis 21 being fixed on pulling block 8 follow 8 downlink of pulling block, drive lever left 9,19 underarm of right lever solid around a left side
Dead axle 10, right fixed shaft 20 are rotated toward outside, lever left 9, right lever 19 upper arm drive left movable rack 12, right movable rack
16 move toward 17 center position of elevator drive rack, until the application position at a fully engaged with elevator drive rack 17, to elevator
Braking；When elevator prepares to start, the drive system driving elevator of the electric control system control elevator of elevator moves up one
A distance element, make load-supporting part 46 lower plane and the upper plane of right movable rack 16 and left movable rack 12 there are one between micro-
Gap, the numerical value of the microgap be left movable rack 12, right movable rack 16 and 17 sideshake of elevator drive rack 0.2~
0.6 times；Then control solenoid valve 30 obtains electric, and the spool of solenoid valve 30 is mobile up to operating position, P mouthfuls of solenoid valve by electromagnet effect
With A mouthfuls logical, the P mouthfuls of air inlet pipelines (or pressure oil oil sources oil inlet pipe) for connecing compressed air gas source, A mouthfuls connect and connect under cylinder body 1
Mouthfuls 23, S mouthful lead to B mouthfuls, the S mouthfuls of air pipes that run in (or oil return line), the B mouthfuls of upper interfaces 22 for connecing cylinder body 1, at this time, select cylinder
The lower interface 23 of body 1 is that the upper interface 22 of air inlet (either oil inlet) cylinder body 1 is exhaust outlet (or oil return opening), on piston 2
Row, jacking block 3 by piston 2 top pressure also uplink and drive pull rod 4, pulling block 8 together uplink simultaneously compressed spring 6, be fixed on drawing
Movable axis 21 on block 8 follows 8 uplink of pulling block, drives lever left 9,19 underarm of right lever around left fixed shaft 10, right fixed shaft 20
Rotated toward inside, lever left 9, right lever 19 upper arm drive left movable rack 12, right movable rack 16 toward leaving lifting device
The direction at 17 center of drive rack is moved, until the free position in a bit of gap is kept completely separate and had with elevator drive rack 17
It sets；It is ready for elevator startup, elevator is transferred to startup program；Control system controls each system of elevator according to normal after startup
Working procedure works, and when elevator needs to stop, the electric control system of elevator first disconnects motor power, and motor subtracts
Speed, when close to stop position, the electric control system of elevator controls the coil losing electricity of solenoid valve 30 on schedule, is reset to initial
Position controls 2 downlink of piston, until the system of left movable rack 12, right movable rack 16 and 17 positive engagement of elevator drive rack
Dynamic position；If occurring abnormal conditions when elevator is currently running, such as the unexpected power down of elevator or because elevator overspeed protecting dress
It sets action power dump or because elevator reaches the limit of guarded by location device action and cuts off the power etc., elevator is always electric at this time
Source dead electricity, other electricity-loss braking devices include that the included dead electricity band brake apparatus of motor plays a role braking immediately, in energy storage dress
After the completion of setting delay, 30 coil losing electricity of solenoid valve, mating solenoid valve is reset to original state, 2 downlink of control piston, left movable teeth
Item 12, right movable rack 16 and 17 positive engagement of elevator drive rack, implement braking, ensure that the safety of elevator.
Embodiment 4, a kind of elevator for the safety catch being mounted with pinion and-rack lifting device of the present invention,
Its outside drawing same Figure 12, Figure 13, the safety catch of use its internal structure each section composition and effect illustrate to see Fig. 1~
Shown in 7, and described in [0005] section, [0006] section, [0007] section, operation principle and [0028] section are described identical.
Embodiment 5, a kind of elevator for the safety catch being mounted with pinion and-rack lifting device of the present invention,
Its outside drawing same Figure 12, Figure 13, the safety catch used is direct in lifting device car described in Fig. 8 and [0008] section
The explanation of the safety catch of upper setting, internal structure each section composition and effect as shown in Figure 8, and [0008] section institute
It states, operation principle and [0029] section are described identical.
For the benefit of reader understand the present invention, this specification citing describe some concrete structures and data, these be all for
Explanation and it is non-limiting, various changes, replacement and the change done within the scope of the basic thought of the claims in the present invention are produced
Raw all or part of equivalent, all within the scope of the invention as claimed.
Claims (9)
1. a kind of safety catch of pinion and-rack lifting device, including, rail assembly, movable rack, movable rack
Operating mechanism, the control device of operating mechanism, load-supporting part；It is characterized in that the load-supporting part includes direct load-supporting part
Or middle transition load-supporting part；The rail assembly includes the horizontal rail that upper rail, lower rail are formed, guide plate, and for work
Carry-over bar by track window aperture；Movable rack passes through track window aperture, the portion of movable rack being associated with drive rack
The tooth form divided is in the position that can be engaged or detach with the drive rack of lifting device, pass through horizontal on rail assembly move
Dynamic be either maintained on the position of certain determinations is realized and the engagement of drive rack or is detached, the position of the determination, packet
It includes the application position engaged with lifting device drive rack or is kept completely separate and has one intersegmental with lifting device drive rack
The free position of gap, described has an intersegmental gap, refer to drive rack and movable rack tooth top interplanar corresponding thereto have 2~
The gaps 5mm；At least one direction of the inner face either above or below for the part of movable rack being associated with guide rail, which is provided with, leads
To notch, guide groove is collectively formed with a part for movable rack cover board, guide groove and matching for guide plate are combined into dynamic cooperation, to prevent
Only movable rack is to the outside of car or inside play；At the top of movable rack after entering on-position with lifting device car
Load-supporting part be in direct contact or by middle transition load-supporting part contact load-bearing；The operating mechanism manipulation activities of movable rack
Rack is moved horizontally or is stopped on rail assembly on the position for being maintained at certain determinations, the manipulation machine of the movable rack
The control device of structure includes, mechanical device or electric device or hydraulic device or pneumatic device or electric-liquid connection
It attaches together and sets or electric-gas combined unit；The safety catch of the pinion and-rack lifting device, including directly rising
The safety catch component being arranged on equipment car is dropped, or the individual secure brake assemblies being separately provided, then pacified
On lifting device；The electric-liquid combined unit or electric-gas combined unit includes solenoid valve or mating solenoid valve,
The electric, dead electricity that obtains of the solenoid valve or mating electromagnetic valve coil is controlled by lifting device electric control system.
2. the safety catch of pinion and-rack lifting device according to claim 1, characterized in that described one kind
The safety catch component being directly arranged on lifting device car, includes the behaviour of rail assembly, movable rack, movable rack
Vertical mechanism, the control device of operating mechanism, load-supporting part, the rail assembly includes track window aperture, guide plate, load receiving part
The horizontal rail that part and upper rail and lower rail are formed, the movable rack includes right movable rack and left movable rack；Movable teeth
Item and the fit system of horizontal rail are dynamic cooperation, and contact surface is smooth low coefficient of friction surfaces；Movable rack and guide rail phase
It is provided with guiding notch above the inner face of the part of contact, guide groove is collectively formed with a part for movable rack cover board, is oriented to
Slot and matching for guide plate are combined into dynamic cooperation；At the top of right movable rack and left movable rack after entering on-position with load-supporting part
And upper rail is in direct contact load-bearing；The operating mechanism of the movable rack includes lever left, right lever, left fixed shaft, right fixation
Axis, movable axis, pulling block, holder, spring, adjusting nut group, pull rod, jacking block, piston, cylinder body；The piston, cylinder body include liquid
Pressure type or vapour-pressure type；The operating mechanism course of work of movable rack is, when the lower interface of cylinder body be exhaust outlet or oil return opening,
When upper interface is air inlet or oil inlet, descent of piston, jacking block are followed descent of piston by the elastic force effect of spring and driven
Downlink, the movable axis being fixed on pulling block follow pulling block downlink, drive lever left, right lever underarm around a left side together for pull rod, pulling block
Fixing axle, right fixed shaft are rotated toward outside, lever left, the left movable rack of upper arm drive of right lever, the past lifting of right movable rack
Device drives rack center position moves, until the application position at a fully engaged with lifting device drive rack, under jacking block stops
Row, but piston continues traveling downwardly a small distance, keeps having a bit of gap with jacking block, to ensure left movable rack, right activity
Rack and lifting device drive rack positive engagement, a bit of gap refers to the gaps 2~5mm；When the lower interface of cylinder body
When for air inlet, either oil inlet, upper interface are exhaust outlet or oil return opening, piston stroking upward, jacking block by piston top pressure also uplink
And driving pull rod, pulling block, compressed spring, the movable axis being fixed on pulling block follow pulling block uplink, drive a left side uplink simultaneously together
Lever, right lever underarm are rotated around left fixed shaft, right fixed shaft toward inside, lever left, right lever upper arm drive left movable teeth
Item, right movable rack are toward the direction movement for leaving lifting device drive rack center, until complete with lifting device drive rack
Detach and have the free position in a bit of gap；Adjusting nut group is used for the pressure of adjustment spring, holder（7）Fixed spring（6）
Upper surface extreme higher position.
3. the safety catch of pinion and-rack lifting device according to claim 1, characterized in that the activity
The electric-liquid combined unit or electric-gas combined unit that the control device of the operating mechanism of rack includes, including, the cylinder body
Lower interface either upper interface be chosen to be air inlet or oil inlet or for the state of exhaust outlet or oil return opening, pass through electricity
Magnet valve controls, and the solenoid valve is two-position-five-way solenoid valve, and spool is reset to initial bit by action of reset spring when dead electricity
Set, P mouthfuls of solenoid valve leads to B mouthful, P mouthfuls connect compressed air gas source or pressure oil oil sources oil inlet pipe, B mouthfuls connect cylinder body on connect
Mouthful, R mouthful lead to A mouthfuls, R mouthfuls run in air pipe or oil return line, A mouthful connect the lower interface of cylinder body, at this time, select cylinder body on connect
The lower interface for mouthful being air inlet either oil inlet cylinder body is exhaust outlet or oil return opening, descent of piston, left movable rack, right work
Carry-over bar and lifting device drive rack positive engagement；Spool is reached operating position, solenoid valve P by electromagnetic force movement when obtaining electric
Mouthful lead to A mouthfuls, the P mouthfuls of air inlet pipelines for connecing compressed air gas source or pressure oil oil sources oil inlet pipe, A mouthfuls connect and connect under cylinder body
Mouthful, S mouthful lead to B mouthfuls, S mouthfuls run in air pipe or oil return line, B mouthful connect the upper interface of cylinder body, at this time, select and connect under cylinder body
The upper interface for mouthful be air inlet either oil inlet cylinder body is exhaust outlet or oil return opening, piston stroking upward, up to left movable rack,
Right movable rack is kept completely separate with lifting device drive rack and has the free position in a bit of gap；
The electric, dead electricity that obtains of the electromagnetic valve coil is controlled by lifting device electric control system, the electrical control system
Further include a relay only controlled by general supply or contactor and energy storage device, institute in the control unit of the solenoid valve of system
That states is only connected across by the normally-closed contact of relay or contactor that general supply controls between electromagnetic valve coil and energy storage device,
When lifting device obtains electric, normally-closed contact disconnects, and the connection between electromagnetic valve coil and energy storage device also disconnects, energy storage device storage
Energy；When lifting device dead electricity, other electricity-loss braking devices include that the included dead electricity band brake apparatus of motor plays a role system immediately
It is dynamic, but electromagnetic valve coil not dead electricity immediately, it is described only by the relay or contactor normally-closed contact of general supply control
Dead electricity is closed, and electromagnetic valve coil is made to be connect with energy storage device, and energy storage device is whole to the delay time constant design of electromagnetic valve coil
It is set to other all electricity-loss braking devices and individually completes the braking time and electric-liquid combined unit or electric-gas connection that braking needs
Close the difference of device action delay time；After the completion of energy storage device delay, electromagnetic valve coil dead electricity；When lifting device general supply is disconnected
When opening no electricity, lifting device remain static, the disconnection of lifting device general supply, electromagnetic valve coil dead electricity, solenoid valve are resetted
Spring effect is reliably nibbled in original state, descent of piston, left movable rack, right movable rack and lifting device drive rack
It closes, lifting device safety device is implemented to brake to elevator；Lifting device general supply connects, the electric control system root of lifting device
According to operation need control electromagnetic valve coil electric or dead electricity, when lifting device prepare start when, the electric-controlled of lifting device
The electromagnet of system control solenoid valve processed obtains electric, iron core action band movable valve plug to operating position, piston stroking upward, until left movable teeth
Item, right movable rack and lifting device drive rack are kept completely separate and have the free position in a bit of gap, are opened for lifting device
It is dynamic to be ready；When lifting device needs to stop after starting, it is electronic that the electric control system of lifting device first disconnects lifting device
Electromechanical source, motor deceleration, when close to stop position, the stop position includes level position, lifting device it is electrical
Control system controls electromagnetic valve coil dead electricity on schedule, is reset to initial position, controls descent of piston, left movable rack, right work
Carry-over bar is implemented to brake with lifting device drive rack positive engagement；Fall suddenly if there is abnormal conditions, including lifting device
Electricity or because lifting device overspeed protective device action power dump or because lifting device reach the limit of guarded by location
Device action is cut off the power, and for lifting device general supply immediately without electricity, other electricity-loss braking devices include that motor is included at this time
Dead electricity band brake apparatus plays a role braking immediately, and electromagnetic valve coil dead electricity after the completion of energy storage device delay, solenoid valve is reset to just
Beginning state, control descent of piston, left movable rack, right movable rack and lifting device drive rack positive engagement, ensure that liter
The safety of equipment drops；There are one hand-operated direction valves for setting between solenoid valve and air source, when being used for required after power failure, artificial hand
The P mouths of dynamic control transformation solenoid valve input terminal, R mouthfuls, S mouthfuls and air inlet pipeline either gas exhaust piping or oil inlet pipe or oil return
The connection of pipeline controls the movement of piston, and to control the braking or release of safety device, the hand-operated direction valve is necessary
It is arranged in the position that securely and reliably cannot arbitrarily open, has formulated rules and regulations and strictly implements, it is ensured that only has money
Matter, authorized personnel could open and use.
4. the safety catch of pinion and-rack lifting device according to claim 1, characterized in that described one kind
The control device of the safety catch component being directly arranged on lifting device car, operating mechanism includes mating electromagnetism
The electric, dead electricity that obtains of valve, the mating electromagnetic valve coil is controlled by lifting device electric control system, the electrical control
Further include a relay only controlled by general supply or contactor and energy storage in the control unit of the mating solenoid valve of system
Device, described is only connected across mating electromagnetic valve coil and storage by the relay of general supply control or the normally-closed contact of contactor
Between energy device, when lifting device obtains electric, normally-closed contact disconnects, and the connection between mating electromagnetic valve coil and energy storage device is also broken
It opens, energy storage device energy storage；When lifting device dead electricity, other electricity-loss braking devices include that the included dead electricity band brake apparatus of motor is vertical
Play a role braking, but mating electromagnetic valve coil not dead electricity immediately, it is described only by the relay of general supply control or
Person's contactor normally-closed contact dead electricity is closed, and so that mating electromagnetic valve coil is connect with energy storage device, energy storage device is to mating solenoid valve
The delay time constant design tuning of coil be other all electricity-loss braking devices individually completes braking need braking time and
The difference of electric-liquid combined unit or electric-gas combined unit action delay time；After the completion of energy storage device delay, mating electromagnetism
Valve coil dead electricity；The piping connection and working condition conversion process of the mating solenoid valve be, spool is by resetting bullet when dead electricity
Spring effect is reset to initial position, mating solenoid valve P mouthful lead to A mouthfuls, the P mouthfuls of air inlet pipelines or pressure for connecing compressed air gas source
Oil sources oil inlet pipe, A mouthful connect the lower interface of cylinder body, S mouthfuls lead to B mouthful, S mouthfuls run in air pipe or oil return line, B mouthful connect cylinder
The upper interface of body, at this time, the upper interface that the lower interface of selected cylinder body be air inlet either oil inlet cylinder body be exhaust outlet or time
Hydraulic fluid port, piston stroking upward, until the application position of left movable rack, right movable rack and lifting device drive rack positive engagement；
It is electric when spool reached operating position by electromagnet effect is mobile, mating solenoid valve P mouthful lead to B mouthfuls, P mouthfuls connect compressed air gas source or
The air inlet pipeline or oil inlet pipe, B mouthful of person's pressure oil oil sources connect the upper interface of cylinder body, R mouthfuls and A mouthfuls logical, the R mouthfuls of air pipes that run in
Either oil return line, A mouthful connect the lower interface of cylinder body at this time, the upper interface of selected cylinder body be air inlet or oil inlet, cylinder body
Lower interface is exhaust outlet or oil return opening, descent of piston, until left movable rack, right movable rack and lifting device drive rack
It is kept completely separate and has the free position in a bit of gap；To realize that dead electricity is braked, the function of electric release is obtained；The movable teeth
The operating mechanism of item, including, cylinder body, piston, jacking block, pull rod, adjusting nut group, spring, holder, pulling block, movable axis, left single armed
The hinge component of lever, left movable mandrel and left double-arm lever, right single-arm lever, right activity mandrel and right double-arm lever hinge
Component, fixing axle；The operating mechanism course of work of movable rack is, when mating solenoid valve dead electricity, is reset to initial position, selectes
The lower interface of cylinder body is that either oil inlet, upper interface are exhaust outlet or oil return opening to air inlet, and piston stroking upward, jacking block are by piston
Top pressure also uplink and drives pull rod, pulling block uplink compressed spring simultaneously together, and the movable axis being fixed on pulling block follows pulling block
Uplink, the open end uplink of the open end for the left single-arm lever being driven around on movable axis and right single-arm lever, drive left list
Arm bar, left movable mandrel and the hinge component of left double-arm lever and right single-arm lever, right movable mandrel and right double-arm lever
Hinge component is rotated around fixing axle, left double-arm lever, right double-arm lever lower end opened toward the left and right sides, upper end drives left work
Carry-over bar, right movable rack are moved toward lifting device drive rack center position, until being nibbled completely with lifting device drive rack
The application position of conjunction brakes lifting device；When mating solenoid valve obtains electric, the lower interface for selecting cylinder body is exhaust outlet, upper interface
For air inlet, descent of piston, jacking block are followed descent of piston by the elastic force effect of spring and drive pull rod, pulling block downlink together,
The movable axis being fixed on pulling block follows pulling block downlink while pulling to be centered around left single-arm lever open end and the right side on movable axis
The open end downlink of single-arm lever, while pulling the lower end of left double-arm lever, right double-arm lever mobile toward centre from the left and right sides,
Upper end drives left movable rack, right movable rack toward the direction movement for leaving lifting device drive rack center, until with lifting
Device drives rack is kept completely separate and has the free position in a bit of gap；Adjusting nut group is used for the pressure of adjustment spring, branch
The extreme higher position of the upper surface of frame fixed spring；There are one hand-operated direction valves for setting between mating solenoid valve and air source, are used for
When required after power failure, manually control converts the P mouths of mating solenoid valve input terminal, R mouthfuls, S mouthfuls and air inlet pipeline or row
The connection of air pipe or oil inlet pipe or oil return line controls the movement of piston, to control safety device braking or
Person discharges, and the hand-operated direction valve is necessarily placed at the position that securely and reliably cannot arbitrarily open, has formulated rules and regulations simultaneously
And stringent implementation, it is ensured that only have qualification, authorized personnel could open and use.
5. the safety catch of pinion and-rack lifting device according to claim 1, characterized in that the independence
Safety catch component includes the separate space surrounded by supporting frame, mounting base, panel, described only
Rail assembly, movable rack in vertical space, the operating mechanism of movable rack, the control device of operating mechanism, middle transition are held
The component of heavy parts；The rail assembly includes horizontal rail, the track window aperture that upper rail and lower rail are formed, the activity
Rack includes left movable rack, right movable rack, and the operating mechanism of the movable rack includes lever left, right lever, Zuo Gu
Dead axle, right fixed shaft, movable axis, pulling block, holder, spring, adjusting nut group, pull rod, jacking block, piston, cylinder body, the manipulation
The control device of mechanism includes solenoid valve and its connecting line, solenoid valve control circuit interface and intake line interface；Described
Middle transition load-supporting part is load-bearing frame, is bolted or the load-carrying members of other connection types and lifting device car
Connection；The electric control circuit interface and pipe interface of solenoid valve control circuit interface and intake line interface and lifting device connect
It connects；The rest part of electric-liquid combined unit or electric-gas combined unit is inside lifting device；Between solenoid valve and air source
There are one hand-operated direction valves for setting, when being used for required after power failure, manually control P mouths, the R of transformation solenoid valve input terminal
Mouthful, S mouthfuls with the connection of air inlet pipeline either gas exhaust piping or oil inlet pipe or oil return line, control the movement of piston, from
And the braking or release of safety device are controlled, the hand-operated direction valve is necessarily placed at and securely and reliably cannot arbitrarily open
It has formulated rules and regulations and has strictly implemented in position, it is ensured that only had qualification, authorized personnel could open and make
With.
6. the safety catch of pinion and-rack lifting device according to claim 1, characterized in that the independence
Safety catch component includes the separate space surrounded by supporting frame, mounting base, panel, described only
Rail assembly, movable rack in vertical space, the operating mechanism of movable rack, the control device of operating mechanism, middle transition are held
The component of heavy parts；The rail assembly includes horizontal rail, the track window aperture that upper rail and lower rail are formed, the activity
Rack includes left movable rack, right movable rack, and the operating mechanism of the movable rack includes cylinder body, piston, jacking block, drawing
Bar, adjusting nut group, spring, holder, pulling block, left single-arm lever, left movable mandrel and left double-arm lever hinge component, right list
The hinge component of arm bar, right movable mandrel and right double-arm lever, the control device of fixing axle, the operating mechanism include,
Mating solenoid valve and its connecting line, mating solenoid valve control circuit interface and intake line interface, the middle transition are held
Heavy parts are load-bearing frame, are bolted or other connection types are connect with the load-carrying members of lifting device car；It is mating
The electric control circuit interface and pipe interface of solenoid valve control circuit interface and intake line interface and elevator connect；Electric-liquid
The rest part of combined unit or electric-gas combined unit is inside lifting device；It is arranged between mating solenoid valve and air source
There are one hand-operated direction valve, for it is required after power failure when, manually the P mouths of control transformation solenoid valve input terminal, R mouthfuls, S mouthfuls
With the connection of air inlet pipeline either gas exhaust piping or oil inlet pipe or oil return line, the movement of piston is controlled, to control
The braking or release of safety device, the hand-operated direction valve are necessarily placed at the position that securely and reliably cannot arbitrarily open,
It has formulated rules and regulations and has strictly implemented, it is ensured that only had qualification, authorized personnel could open and use.
7. the safety catch of pinion and-rack lifting device according to claim 1, characterized in that the electromagnetism
The electric, dead electricity that obtains of valve or mating solenoid valve, electromagnetic valve coil is controlled by lifting device electric control system, control step
Rapid includes step control as follows, and when lifting device prepares to start, the electric control system of lifting device controls lifting device
Drive system driving lifting device moves up a distance element, makes lower plane and right movable rack and the left activity of load-supporting part
There are one microgaps for the upper plane of rack, and the numerical value of the microgap is left movable rack, right movable rack and lifting device
0.2~0.6 times of drive rack sideshake；Then the electric control system control solenoid valve of lifting device or mating solenoid valve
Coil obtains electric.
8. the safety catch of rack-and-pinion lifting device according to claim 1, characterized in that configured with the present invention
The installation method of lifting device of safety catch include, when carrying out and install related civil construction early period, it is necessary to logical
Cross and the difference in height of stop and stop accurately measured, constructed accordingly to each stop sill and accurately control stop with
The difference in height of plane is the integral multiple of drive rack tooth pitch on sill between stop, and when lifting device is installed, correct adjust rises
Drop equipment and drive rack are worked in coordination so that lifting device just stops leveling accuracy from first layer and in median.
9. a kind of elevator, characterized in that install and use the gear teeth described in any claim in claim 1- claims 8
The safety catch of formula lifting device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221127.1A CN106744192B (en) | 2016-12-27 | 2016-12-27 | A kind of safety catch of pinion and-rack lifting device |
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| CN201611221127.1A CN106744192B (en) | 2016-12-27 | 2016-12-27 | A kind of safety catch of pinion and-rack lifting device |
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| CN106744192B true CN106744192B (en) | 2018-11-02 |
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| CN108661512B (en) * | 2018-05-14 | 2020-07-31 | 陈学春 | Be used for special crowded electrically operated gate of preventing of radiology department |
| CN112048896B (en) * | 2020-09-09 | 2021-08-06 | 龙南小麦自动化科技有限公司 | Knitted fabric cutting device |
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| US7909142B2 (en) * | 2006-05-19 | 2011-03-22 | Hydro-Mobile Inc. | Braking device for elevating platform assembly |
| CN101003343A (en) * | 2006-12-30 | 2007-07-25 | 济南重工股份有限公司 | Dooly compartment self going type elevator |
| US8210319B2 (en) * | 2007-08-31 | 2012-07-03 | John W. Boyd | Hydraulic elevating platform assembly |
| CN101172554B (en) * | 2007-09-27 | 2011-08-03 | 日立电梯（中国）有限公司 | Bidirectional safety tongs device for elevator |
| CN102259783B (en) * | 2011-03-17 | 2013-04-10 | 太仓市康辉科技发展有限公司 | Mechanical device stopping in case of overspeed |
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Effective date of registration: 20201009 Address after: 215000 A, building 88, Beijing East Road, Taicang Development Zone, Suzhou, Jiangsu Patentee after: TAICANG DNS MECHANICAL & ELECTRICAL ENGINEERING Co.,Ltd. Address before: 4, 528459 floor, No. 2, Xinxing Avenue, Zhongshan Town, Guangdong, A5 Patentee before: Liao Zhongmin |
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