CN107032251A - Rack-and-pinion jacking equipment horizontal safety catch - Google Patents
Rack-and-pinion jacking equipment horizontal safety catch Download PDFInfo
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- CN107032251A CN107032251A CN201611221347.4A CN201611221347A CN107032251A CN 107032251 A CN107032251 A CN 107032251A CN 201611221347 A CN201611221347 A CN 201611221347A CN 107032251 A CN107032251 A CN 107032251A
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- Prior art keywords
- rack
- jacking equipment
- movable rack
- electric
- jacking
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
-
- 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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A kind of rack-and-pinion jacking equipment horizontal safety catch, configured by horizontal direction, its composition includes, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, hand-operating unlocking mechanism；Directly contacted with the main load-carrying members of jacking equipment car after on-position is entered at the top of movable rack or load-bearing is contacted by middle transition load-supporting part, the operating mechanism manipulation activities rack of the movable rack of horizontal direction configuration, which is moved horizontally or stopped on orbit hole, to be maintained in some defined locations；Described defined location, including drive the application position that engage of rack with jacking equipment or drive rack completely disengaged with jacking equipment and have the free position of an intersegmental gap；Play and save the beneficial effect that the useful space significantly improves langding accuracy and safeguard protection braking quality.
Description
Technical field
The present invention relates to jacking equipment safety catch field, more particularly to a kind of rack-and-pinion jacking equipment level
Formula safety catch.
Background technology
The safety arrestment measure of existing pinion and-rack jacking equipment, or by the friction catch to motor shaft,
Either realized by the method for the friction catch to gear shaft, friction catch, exist probably due to friction material abrasion or
Performance caused by person's oil pollution etc. lowers or failed；If problem occurs for other drive gear, such as gear teeth are damaged, even if
Gear is not rotated, and cannot guarantee that reliable braking；To ensure safety, pinion and-rack jacking equipment, which must be configured, reliably can
Reply includes the safety catch that problem and similar safety problem occur for drive gear.
The content of the invention
The purpose of the present invention, is to provide a kind of reliable cope with and occurs problem and similar safety including drive gear
The safety catch of problem.
A kind of rack-and-pinion jacking equipment horizontal safety catch (hereinafter referred to as horizontal safety catch), its
Configured by horizontal direction, installation site is in jacking equipment car top or bottom or other rational positions, and it constitutes bag
Include, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack
Operating mechanism control device, hand-operating unlocking mechanism；Described load-supporting part includes direct load-supporting part or middle transition
Load-supporting part；Described rail assembly (referring to Fig. 2) includes upper rail 15 (in fig. 2 and load-supporting part), the water of the formation of lower rail 18
Plate rail road, guide plate 27, and the track window aperture 11 for supplying movable rack to pass through；Movable rack (right movable rack 16 and left activity
Rack 12) track window aperture 11 is passed through, the tooth form of the part being associated with driving rack of movable rack is in can be with lifting
The position that the driving rack 17 of equipment is engaged or separated, by the way that some determinations are moved horizontally or be maintained on rail assembly
Position on realize with driving rack engagement or separate, described defined location, including with jacking equipment driving rack
The application position of engagement or it is kept completely separate with jacking equipment driving rack and has the free position in a bit of gap, it is described
Have a bit of gap, refer to the gap for driving both rack and movable rack corresponding thereto tooth top interplanar to have 2~5mm；
At least one direction of the inner face either above or below of the part being associated with guide rail of movable rack is provided with guide groove, (ginseng
See Fig. 4), the mating part of guide groove and guide plate 27 is dynamic cooperation, to prevent movable rack to the outside of car 60 or interior
Side play；Load-supporting part at the top of movable rack with jacking equipment car after on-position is entered (is that load-supporting part is simultaneous in Fig. 1
Upper rail 15) directly contact or pass through the contact load-bearing of middle transition load-supporting part；The operating mechanism manipulation activities tooth of movable rack
Bar, which is moved horizontally or stopped on orbit hole, to be maintained in some defined locations, the operating mechanism cloth of described movable rack
Put in the support structure 28 in the horizontal plane direction of jacking equipment car；The control device of the operating mechanism of described movable rack
Including, mechanical device or electric device or hydraulic means or pneumatic means or electric-liquid combined unit or
Electric-gas combined unit；Described electric-liquid combined unit or electric-gas combined unit include magnetic valve 30, described magnetic valve
The electric, dead electricity that obtains of 30 coils is controlled by jacking equipment electric control system.
Fig. 1 be a kind of structural representation of rack-and-pinion jacking equipment horizontal safety catch, it is illustrated that direction be from
At the top of rack-and-pinion jacking equipment car 60, top car outside plate finding viewed from above is shed, so being driven for jacking equipment
Carry-over bar 17 can only see its top, and right movable rack 16 has carried out broken section processing, can see its internal and right thick stick clearly
The fit structure of bar 19, the combination of right movable rack and left movable rack combine be with rack in the middle of hanging down of representing of center chain-dotted line
The straight vertical median plane in rack projection plane is the mirror symmetric figure of symmetrical plane, and support 7 is half section, its movable rack
The control device of operating mechanism includes, or hydraulic means or pneumatic means or electric-liquid combined unit or electric-gas
The state that movable rack drives rack to separate with jacking equipment, described horizontal safety arrestment is shown in combined unit, Fig. 1
Device is in free position state, and such state looks down from top to be easy to distinguish movable rack and jacking equipment sliding tooth
Bar；Fig. 2 is Fig. 1 A-A partial sectional views, and direction is that drawing is shown from the eyes front of A-A sections (in terms of rack direction) finding
Rail assembly, movable rack, the annexation of the right lever 19 of the operating mechanism of movable rack and movable rack, it is shown that living
Carry-over bar drives the state that rack is separated with jacking equipment；Fig. 3 is the movable rack that view direction same as shown in Figure 2 is shown
Rack is driven in the schematic diagram for engaging on-position with jacking equipment；Fig. 4 is Fig. 1 B-B partial sectional views, and direction is from B-
B sections, which are turned right, sees and (is seen toward centerline direction) finding, and drawing shows rail assembly, movable rack, activity from vertical section direction
The annexation of the lever left 9 of the operating mechanism of rack and movable rack；A kind of described rack-and-pinion jacking equipment top-type
Safety catch, including the operating mechanism of rail assembly, movable rack, movable rack, the control device of operating mechanism, load-bearing
Part, described rail assembly includes the water of track window aperture 11, guide plate 27, load-supporting part and upper rail 15 and the formation of lower rail 18
Plate rail road, described movable rack includes right movable rack 16 and left movable rack 12, described right movable rack 16 and left work
Carry-over bar 12 is passed through at track window aperture 11, the tooth form of the part being associated with the driving rack 17 of jacking equipment of movable rack
In the position that can be engaged or separate with the driving rack 17 of jacking equipment, by moving horizontally or protecting on rail assembly
Hold in some defined locations realize with driving rack 17 engagement or separate, described defined location, including with liter
Application position or be kept completely separate with jacking equipment driving rack and have a bit of gap that drop device drives rack is engaged
Free position, described has a bit of gap, refer to drive rack and movable rack tooth top interplanar corresponding thereto have 2~
5mm gaps；Movable rack and the fit dimension of horizontal rail are dynamic cooperation, and contact surface is smooth low coefficient of friction surfaces, with
Be conducive to the movement of movable rack；Fig. 4 is in Fig. 1 B-B partial sectional views, the part being associated with guide rail of movable rack
At least one direction of end face either above or below is provided with guide groove, (referring to Fig. 3), the mating part of guide groove and guide plate 27
Coordinate to be dynamic, to prevent movable rack to the outside of car 60 or inner side play；Right movable rack 16 and left movable rack 12
Top directly contacts load-bearing after on-position is entered with load-supporting part and upper rail 15；The operating mechanism bag of described movable rack
Include, lever left 9, right lever 19, left fixed shaft 10, right fixed shaft 20, movable axis 21, pulling block 8, support 7, spring 6, adjusting nut
Group 5, pull bar 4, jacking block 3, piston 2, cylinder body 1；Described piston 2, cylinder body 1 include fluid pressure type or vapour-pressure type；Described activity
The operating mechanism of rack is horizontal plane direction arrangement, and its actual motion direction is direction along the horizontal plane, clear for narration, fixed herein
Justice, before driving rack 17 direction is, after the direction of cylinder body 1 is, is reach to the movement of driving rack 17 direction, is moved to the direction of cylinder body 1
Move be after move, (if Fig. 1, Figure 11 are placed vertically, reach is exactly up relative to drawing, and rear shifting is exactly relative to drawing
It is descending)；The operating mechanism course of work of movable rack is, when the rear port 23 of cylinder body 1 be exhaust outlet (or oil return opening), it is preceding
When interface 22 is air inlet (or oil inlet), moved after piston 2, jacking block 3 is moved simultaneously after being followed piston 2 by the elastic force effect of spring 6
And driving pull bar 4, pulling block 8 to move afterwards together, the movable axis 21 being fixed on pulling block 8, which is followed, to be moved after pulling block 8, drives lever left 9, the right side
The postbrachium of lever 19 is rotated around left fixed shaft 10, right fixed shaft 20 toward outside, and lever left 9, the forearm of right lever 19 drive left activity
Rack 12, right movable rack 16 are toward jacking equipment driving rack 17 center position movement, until driving rack 17 with jacking equipment
At a fully engaged application position, jacking block 3 is moved after stopping, but piston 2 moves a small distance after continuing, and holding is in jacking block 3
Not contact condition, to ensure that left movable rack 12, right movable rack 16 drive the positive engagement of rack 17 with jacking equipment；Work as cylinder body
When 1 rear port 23 is that air inlet (or oil inlet), front port 22 are exhaust outlet (or oil return opening), piston 2 moves forward, jacking block
3 are also moved forward by the top pressure of piston 2 and drive pull bar 4, pulling block 8 to move forward together while compression spring 6, is fixed on pulling block 8
Movable axis 21 follows pulling block 8 to move forward, drives lever left 9, the postbrachium of right lever 19 to turn around left fixed shaft 10, right fixed shaft 20 toward inner side
Dynamic, lever left 9, the forearm of right lever 19 drive left movable rack 12, right movable rack 16 to drive rack toward jacking equipment is left
The direction movement at 17 centers, until being kept completely separate with jacking equipment driving rack 17 and having the free position in a bit of gap；Adjust
Section nut group 5 is used for the pressure for adjusting spring 6, and support 7 fixes the front position of the front end face of spring 6, and fixed frame 28 is with rising
The main load-carrying members connection of equipment car is dropped, and support fixation is played to horizontal safety catch；Described gear teeth
Bar jacking equipment horizontal safety catch, the top or bottom of its installation site including car or other rational
Position；Figure 11 is signal of the rack-and-pinion jacking equipment horizontal safety catch shown in Fig. 1 in application position state
Figure.
Electric-liquid combined unit or electric-gas the joint dress that the control device of the operating mechanism of described movable rack includes
Put, including, the rear port 23 or front port 22 of described cylinder body 1 are chosen to be air inlet (or oil inlet) or are exhaust
The state of mouth (or oil return opening), is controlled by magnetic valve 30, and described magnetic valve 30 is two-position-five-way solenoid valve, and Fig. 6 is
State of a control schematic diagram during 30 dead electricity of magnetic valve, valve element is reset to initial position, magnetic valve P by action of reset spring during dead electricity
Mouthful with B mouthfuls lead to, P mouthfuls connect the air inlet pipeline (or in-line) of compressed air gas source (or pressure oil oil sources), B mouthfuls connect cylinder body
1 front port 22, R mouthfuls with A mouthfuls logical, R mouthfuls of air pipes that run in (or return line), A mouthfuls connect cylinder body 1 rear port 23, now,
The front port 22 of selected cylinder body 1 is air inlet (or oil inlet), and the rear port 23 of cylinder body 1 is exhaust outlet (or oil return opening),
Moved after piston 2, left movable rack 12, right movable rack 16 are implemented to brake with jacking equipment driving rack 17 positive engagement；Fig. 5 is
State of a control schematic diagram when magnetic valve 30 obtains electric, valve element is mobile up to operating position, P mouthfuls of magnetic valve by electromagnet effect when obtaining electric
With A mouthfuls it is logical, P mouthfuls connect the air inlet pipeline (or pressure oil oil sources in-line) of compressed air gas source, A mouthfuls connect being followed by for cylinder body 1
Mouthfuls 23, S mouthful lead to B mouthfuls, S mouthfuls of air pipes that run in (or return line), B mouthfuls connect cylinder body 1 front port 22, now, select cylinder
The rear port 23 of body 1 is air inlet (or oil inlet), before the front port 22 of cylinder body 1 is exhaust outlet (or oil return opening), piston 2
Move, until left movable rack 12, right movable rack 16 are kept completely separate with jacking equipment driving rack 17 and have a bit of gap
Free position, described a bit of gap, refers to 2~5mm gaps.
The electric, dead electricity that obtains of the described coil of magnetic valve 30 is controlled by jacking equipment electric control system, and described is electric
Also include a contactor only controlled by general supply or relay adjunction in the control unit of the magnetic valve 30 of control system
It is normally closed that tentaculum combination and energy storage device, the described contactor only controlled by general supply or relay adjunction tentaculum are combined
Contact is connected across between the coil of magnetic valve 30 and energy storage device, when jacking equipment obtains electric, and normally-closed contact disconnects, the coil of magnetic valve 30
Connection between energy storage device also disconnects, energy storage device energy storage；During jacking equipment dead electricity, other electricity-loss braking devices include electricity
The dead electricity band brake apparatus that motivation is carried plays a role braking immediately, but the coil of magnetic valve 30 not dead electricity immediately, it is described only
Relay or contactor normally-closed contact the dead electricity closure controlled by general supply, makes the coil of magnetic valve 30 be connected with energy storage device,
Energy storage device is independent for other electricity-loss braking devices to time delay (discharge time) constant design tuning of the coil of magnetic valve 30
The braking time that completing braking needs acts the difference of time delay with electric-liquid combined unit or electric-gas combined unit；Example
Such as, the braking time that other electricity-loss braking devices of certain jacking equipment individually complete braking needs is 3.5S, electric-liquid joint dress
Put or electric-gas combined unit action time delay is 0.5S, then time delay constant of the energy storage device to the coil of magnetic valve 30
Design tuning is (3.5S-0.5S=) 3S, after the completion of energy storage device delay, the coil losing electricity of magnetic valve 30；When jacking equipment is always electric
(including state after original state or dead electricity after the release of energy storage device energy), jacking equipment are in static when source disconnection is without electricity
State, the coil of magnetic valve 30 is in after original state, piston 2 by action of reset spring and moved, until left activity without electricity, magnetic valve 30
Rack 12, right movable rack 16 drive the application position of the positive engagement of rack 17, jacking equipment safety device pair with jacking equipment
Jacking equipment implements braking；When the electric control system of the connection of jacking equipment general supply, jacking equipment needs to control according to operation
The coil of magnetic valve 30 electric or dead electricity, when jacking equipment prepare start when, jacking equipment electric control system control electricity
The coil of magnet valve 30 obtains electric, and iron core action band movable valve plug is to operating position, and piston 2 moves forward, until left movable rack 12, right activity
Rack 16 is kept completely separate with jacking equipment driving rack 17 and has the free position in a bit of gap, is that jacking equipment startup is carried out
Prepare；When jacking equipment needs to stop after starting, the electric control system of jacking equipment first disconnects jacking equipment motor power,
Motor deceleration, when close to stop position, such as when close to level position, the electric control system of jacking equipment is controlled on schedule
The coil losing electricity of magnetic valve 30 processed, is moved after being reset to initial position, control piston 2, until left movable rack 12, right movable rack 16
The application position of the positive engagement of rack 17 is driven with jacking equipment；If there is abnormal conditions, the unexpected power down of such as jacking equipment,
Or reach the limit of guarded by location device because of jacking equipment overspeed protective device action power dump or because of jacking equipment
Action power dump etc., now jacking equipment general supply is immediately without electricity, and other electricity-loss braking devices include what motor was carried
Dead electricity band brake apparatus plays a role braking immediately, and the coil losing electricity of magnetic valve 30 after the completion of energy storage device delay, magnetic valve 30 resets
Reliably nibbled for shifting, left movable rack 12, right movable rack 16 and jacking equipment driving rack 17 after original state, control piston 2
Close, it is ensured that the safety of jacking equipment；In the case of brake hard, left movable rack 12, right movable rack 16 at the beginning may be with
Jacking equipment driving rack 17 does not have at a fully engaged, and rack may occur when worst situation is braking as shown in Figure 7
The situation that peak is contacted with peak, now temporarily becomes friction catch, if now jacking equipment is complete under elastic force effect
The braking moment of portion's brake apparatus, which is added up, to be enough to realize braking, and braking task is completed；If now jacking equipment is all braked
The braking moment of device, which is added up, to be all not enough to prevent jacking equipment downslide, (because there is braking moment effect, under just starting
Sliding meeting is slower), when slipping down to the position of stagger peak and peak, left movable rack 12, right movable rack 16 are just
It can be squeezed under elastic force promotion in the teeth groove of jacking equipment driving rack 17 (referring to Fig. 8), then as continuing to glide, continue to squeeze
Enter, until left movable rack 12, right movable rack 16 drive the positive engagement of rack 17 with jacking equipment；Described manual unlocking machine
Structure, including, a hand-operated direction valve is provided between magnetic valve 30 and source of the gas, for it is required after power failure when it is (such as urgent
Not in level position, it is necessary to which starting hand gear is slowly moved to level position after braking), manually control converts magnetic valve
P mouths (air inlet), R mouthfuls (exhaust outlet), S mouthfuls (exhaust outlet) and air inlet pipeline or gas exhaust piping or the oil inlet pipe of 30 inputs
Road or the connection of return line, control the motion of piston 2, so as to control the braking or release of safety device；Certainly it is described
Hand-operated direction valve be necessarily placed at the safe and reliable position that can not arbitrarily open, formulated rules and regulations and strictly implemented,
Ensure only possess qualification, authorized personnel could open and use；Fig. 7 is Fig. 1 C-C partial sectional views direction,
The peak of rack and peak contact condition schematic diagram may occur when braking, projecting direction is from the past driving of jacking equipment
The direction observation of rack 17；Fig. 8 is Fig. 7 same view direction, when left movable rack, right movable rack are squeezed under elastic force promotion
Enter the schematic diagram in the teeth groove of jacking equipment driving rack.
Using each possible braking of jacking equipment of the rack-and-pinion jacking equipment horizontal safety catch of the present invention
The distance between anchor point is that it drives the integral multiple of rack tooth pitch (p=π m), therefore is configured with the safety arrestment dress of the present invention
The installation method for the jacking equipment put includes, when carrying out the early stage civil engineering relevant with installing, it is necessary to by stop and layer
The difference in height stood accurately is measured, each stop sill is constructed accordingly and accurately control stop and stop between sill
The difference in height of upper plane for driving rack tooth pitch (p=π m) integral multiple, according to GB/T10058 regulation, it is allowed to error for ±
10mm (construction internally controlling requirement should be less than this error amount)；When jacking equipment is installed, correct regulation jacking equipment and sliding tooth
Bar is worked in coordination so that jacking equipment car just stops leveling accuracy from first layer and in median, then later stop
Flat bed can just meet the requirements, or even when other indivedual flat bed element failures, also can guarantee that stop leveling accuracy；
And flat bed keeps precision to be much better than the requirement of ± 20mm as defined in GB/T10058.
The present invention using hydraulic pressure or air pressure control rack engagement, pressure stability, be conducive to reduce impact；Nibbled using rack
Conjunction mode carries out safeguard protection braking, it is to avoid it is that existing friction catch mode is likely to occur because friction material abrasion or
Potential safety hazard caused by person's oil pollution etc., improves the reliability of safety arrestment；Even if meeting drive gear occurs problem
Situation, also can reliably be braked, it is ensured that safety；Horizontal direction configures top set or bottom sets and installed, and has saved having in car
Imitate space；Rack engagement flat bed keeps precision to reach the requirement for being much better than ± 20mm as defined in GB/T10058；Accordingly, it is capable to
Enough play and save the beneficial effect that the useful space significantly improves langding accuracy and safeguard protection braking quality.
Brief description of the drawings
Fig. 1 is a kind of structural representation of rack-and-pinion jacking equipment horizontal safety catch.
Fig. 2 is Fig. 1 A-A partial sectional views.
Fig. 3 is in jacking equipment driving rack for the movable rack that view direction same as shown in Figure 2 is shown and engaged
The schematic diagram of on-position.
Fig. 4 is Fig. 1 B-B partial sectional views.
Fig. 5 is state of a control schematic diagram when magnetic valve 30 obtains electric.
State of a control schematic diagram when Fig. 6 is 30 dead electricity of magnetic valve.
Fig. 7 is Fig. 1 C-C partial sectional views direction, and the peak that may occur rack when braking is contacted with peak
View.
Fig. 8 is Fig. 7 same view direction, when left movable rack, right movable rack are squeezed into lifting under elastic force promotion and set
Schematic diagram in the teeth groove of standby driving rack.
Fig. 9 is the schematic diagram of embodiment 1.
Figure 10 is the situation schematic diagram braked to jacking equipment of safety catch of embodiment 1.
Figure 11 is that the rack-and-pinion jacking equipment horizontal safety catch shown in Fig. 1 is in showing for application position state
It is intended to.
Embodiment
Embodiment 1, Fig. 9 be embodiment 1 schematic diagram, drawing show be jacking equipment side outward appearance, described level
Formula safety catch is arranged on the top of pinion and-rack jacking equipment, temporarily prepares fortune in free position, jacking equipment
Situation in going or being currently running, Figure 10 is that the horizontal safety catch of embodiment 1 is braked to jacking equipment
Situation schematic diagram, (left and right described in Fig. 1, Fig. 2, Fig. 3, Fig. 7, Fig. 8 above is toward jacking equipment side inside jacking equipment
Face sees that Fig. 9, Figure 10 are to be seen from the outside toward jacking equipment side, so left and right directions is just anti-phase), the horizontal safety of use
Shown in brake apparatus its internal structure each several part composition and the explanation as Fig. 1~8 of effect, Figure 11, and [0005] section, [0006]
Described in section, [0007] section, embodiment 1 promotes piston movement, pneumatic system by solenoid valve control compressed air or hydraulic oil
Or Hydraulic Elements both include pneumatic element of the present invention or Hydraulic Elements, in addition to other necessary pneumatic elements or
Person's Hydraulic Elements；Due to being related to the matching coordinative of multiple transmission systems, so should be specifically noted that manufacture matter in manufacture and installation
Amount and installation quality, including necessary described in [0008] section ready-made include accurately controlling between stop and stop plane on sill
Difference in height for driving rack tooth pitch (p=π m) integral multiple relevant work, it is ensured that necessary precision, detect it is qualified after,
Can trial operation；The electric control system of jacking equipment is using embedded system as master control system, and its course of work is to work as system
During without electricity including disconnecting power switch or accidental power failure etc. cause jacking equipment general supply disconnect, the coil of magnetic valve 30
Dead electricity, magnetic valve 30 by action of reset spring be in original state, piston 2 after shiftings, left movable rack 12, right movable rack 16 and
Jacking equipment drives the positive engagement of rack 17, and jacking equipment safety device is implemented to brake to jacking equipment；Jacking equipment general supply
Connect, the electric control system of jacking equipment needed to control according to operation the coil of magnetic valve 30 electric or dead electricity, work as liter
When dropping equipment preparation startup, the drive system driving jacking equipment of the electric control system control jacking equipment of jacking equipment is upward
A mobile distance element, making the upper plane of the lower plane and right movable rack 16 and left movable rack 12 of load-supporting part 15 has one
Microgap, the numerical value of described microgap is that left movable rack 12, right movable rack 16 and jacking equipment drive the sideshake of rack 17
0.2~0.6 times；Then supporting magnetic valve is controlled to obtain electric, the coil of control magnetic valve 30 obtains electric, iron core action band movable valve plug is extremely
Operating position, piston 2 moves forward, until left movable rack 12, right movable rack 16 are kept completely separate with jacking equipment driving rack 17
And have the free position in a bit of gap, it is that jacking equipment startup is ready；When jacking equipment needs to stop after starting, lifting
The electric control system of equipment first disconnects jacking equipment motor power, and motor deceleration when close to stop position, for example, connects
During nearly level position, the electric control system of jacking equipment controls the coil losing electricity of magnetic valve 30 on schedule, is reset to initial bit
Put, moved after control piston 2, until left movable rack 12, right movable rack 16 drive the positive engagement of rack 17 with jacking equipment
Application position；If occurring abnormal conditions when jacking equipment is currently running, the unexpected power down of such as jacking equipment or because lifting
Equipment overspeed protective device action power dump or because jacking equipment reaches the limit of guarded by location device action and cut off the electricity supply
Etc. so that jacking equipment general supply dead electricity, other electricity-loss braking devices include the dead electricity band brake apparatus that carries of motor immediately
Play a role braking, energy storage device delay after the completion of, the coil losing electricity of magnetic valve 30, magnetic valve 30 be reset to original state,
Shifting after piston 2, left movable rack 12, right movable rack 16 and jacking equipment is controlled to drive the positive engagement of rack 17, it is ensured that to rise
The safety of equipment drops.
Embodiment 2, Fig. 9, Figure 10 are also the schematic diagram of embodiment 2, it is shown that one kind is mounted with tooth of the present invention
Take turns the elevator of rack jacking equipment horizontal safety catch, its outside drawing same Fig. 7, Fig. 8, the horizontal safety arrestment of use
Shown in device its internal structure each several part composition and the explanation as Fig. 1~8 of effect, Figure 11, and [0005] section, [0006] section,
[0007] described in section, operation principle is described identical with [0021] section.
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, the various changes done in the range of the basic thought of the claims in the present invention, replace and change is produced
Raw all or part of equivalent, all within the scope of the invention as claimed.
Claims (8)
1. a kind of rack-and-pinion jacking equipment horizontal safety catch, it is characterized in that, configured by horizontal direction, installation site
In jacking equipment car top or bottom or other rational positions, its composition includes, load-supporting part, rail assembly, work
Carry-over bar, the position-limit mechanism of movable rack, the operating mechanism of movable rack, the control device of the operating mechanism of movable rack, hand
Dynamic unlocking mechanism；Described load-supporting part includes direct load-supporting part or middle transition load-supporting part；Described rail assembly
Horizontal rail including upper rail, lower rail formation, guide plate, and the track window aperture for supplying movable rack to pass through；Movable rack is passed through
Track window aperture, the tooth form of the part being associated with driving rack of movable rack is in driving rack that can be with jacking equipment
Engagement or the position of separation, are realized with driving by moving horizontally or being maintained on rail assembly in some defined locations
The engagement or separation of carry-over bar, described defined location, including with jacking equipment drive the application position that engages of rack or
Person is kept completely separate with jacking equipment driving rack and has the free position of an intersegmental gap, and described has an intersegmental gap, refers to drive
Carry-over bar and movable rack tooth top interplanar corresponding thereto have 2~5mm gaps；The part being associated with guide rail of movable rack
At least one direction of inner face either above or below be provided with guide groove, the mating part of guide groove and guide plate is matched somebody with somebody to be dynamic
Close, to prevent movable rack to the outside of car or inner side play；At the top of movable rack after on-position is entered with lifting
The load-supporting part of equipment car directly contacts or contacts load-bearing by middle transition load-supporting part；The operating mechanism of movable rack
Manipulation activities rack, which is moved horizontally or stopped on rail assembly, to be maintained in some defined locations, described movable rack
Operating mechanism be arranged in the support structure in horizontal plane direction of jacking equipment car；The operating mechanism of described movable rack
Control device include, mechanical device or electric device or hydraulic means or pneumatic means or electric-liquid joint
Device or electric-gas combined unit；Described electric-liquid combined unit or electric-gas combined unit include magnetic valve, described
The electric, dead electricity that obtains of electromagnetic valve coil is controlled by electrical control system of elevator.
2. rack-and-pinion jacking equipment horizontal safety catch according to claim 1, it is characterized in that, it constitutes bag
Include, load-supporting part, rail assembly, movable rack, the position-limit mechanism of movable rack, the operating mechanism of movable rack, movable rack
Operating mechanism control device, hand-operating unlocking mechanism；Described rail assembly includes track window aperture, guide plate, load receiving part
Part and the horizontal rail of upper rail and lower rail formation, described movable rack includes right movable rack and left movable rack, described
Movable rack passes through track window aperture, and the tooth form of the part being associated with driving rack of movable rack is in can be with lifting
The driving rack engagement of equipment or the position of separation, by the way that some determinations are moved horizontally or be maintained on rail assembly
Realized on position and drive the engagement of rack or separate, described defined location, including nibbled with jacking equipment driving rack
The application position of conjunction or it is kept completely separate with jacking equipment driving rack and has the free position of an intersegmental gap, described has
One intersegmental gap, refers to drive rack and movable rack tooth top interplanar corresponding thereto to have 2~5mm gaps；Movable rack and water
The fit dimension in plate rail road is dynamic cooperation, and contact surface is smooth low coefficient of friction surfaces；Movable rack is associated with guide rail
At least one direction of the inner face either above or below of part be provided with guide groove, the mating part of guide groove and guide plate is
It is dynamic to coordinate, to prevent movable rack to the outside of car or inner side play；Entering at the top of right movable rack and left movable rack
Enter after on-position and directly to contact load-bearing with load-supporting part and upper rail；The operating mechanism of described movable rack includes, lever left,
Right lever, left fixed shaft, right fixed shaft, movable axis, pulling block, support, spring, adjusting nut group, pull bar, jacking block, piston, cylinder
Body；Described piston, cylinder body include fluid pressure type or vapour-pressure type；The operating mechanism of described movable rack is horizontal plane direction cloth
Put, its actual motion direction is direction along the horizontal plane, it is clear for narration, define herein, before driving rack direction is, cylinder body direction
It is reach to the movement of driving rack direction to be rear, is moved after being to the movement of cylinder body direction；The operating mechanism course of work of movable rack
For, when the lower interface of cylinder body is exhaust outlet or oil return opening, upper interface are air inlet or oil inlet, descent of piston, jacking block
Followed descent of piston by the elastic force effect of spring and drive pull bar, pulling block descending together, be fixed on movable axis on pulling block with
With pulling block it is descending, drive lever left, right lever underarm to be rotated around left fixed shaft, right fixed shaft toward outside, lever left, right lever
Upper arm drives left movable rack, right movable rack toward jacking equipment driving rack center position movement, until being driven with jacking equipment
The at a fully engaged application position of carry-over bar, jacking block stopping is descending, but piston continues traveling downwardly a small distance, and holding has with jacking block
A bit of gap, to ensure left movable rack, right movable rack and jacking equipment driving rack positive engagement, described is a bit of
Gap, refers to 2~5mm gaps；When the lower interface of cylinder body is air inlet or oil inlet, upper interface are exhaust outlet or oil return opening
When, piston stroking upward, jacking block are also up and drive pull bar, pulling block up together while compression spring by the top pressure of piston, fixed
Movable axis on pulling block follows up pulling block, drive lever left, right lever underarm to turn around left fixed shaft, right fixed shaft toward inner side
Dynamic, lever left, the upper arm of right lever drive left movable rack, right movable rack toward the side for leaving jacking equipment driving rack center
To movement, until being kept completely separate with jacking equipment driving rack and having the free position in a bit of gap；Adjusting nut group is used for
The pressure of spring is adjusted, support 7 fixes the extreme higher position of the upper surface of spring 6；The master of fixed frame and jacking equipment car holds
Weight structure is connected, and support fixation is played to horizontal safety catch；Described rack-and-pinion jacking equipment horizontal
Safety catch, its installation site includes the top or bottom or other rational positions of car.
3. the safety catch of pinion and-rack jacking equipment according to claim 1, it is characterized in that, described activity
Electric-liquid combined unit or electric-gas combined unit that the control device of the operating mechanism of rack includes, including, described cylinder body
Lower interface or upper interface be chosen to be air inlet or oil inlet or state for exhaust outlet or oil return opening, by electricity
Magnet valve is controlled, and described magnetic valve is two-position-five-way solenoid valve, and during dead electricity valve element is reset to initial bit by action of reset spring
Put, P mouthfuls of magnetic valve leads to B mouthful, P mouthfuls connect compressed air gas source or pressure oil oil sources in-line, B mouthfuls connect cylinder body on connect
Mouthful, R mouthful lead to A mouthfuls, R mouthfuls run in air pipe or return line, A mouthful connect the lower interface of cylinder body, now, select cylinder body on connect
Mouth is air inlet or oil inlet, and the lower interface of cylinder body is exhaust outlet or oil return opening, descent of piston, left movable rack, right work
Carry-over bar drives rack positive engagement with jacking equipment；Valve element is mobile up to operating position, magnetic valve P by electromagnet effect when obtaining electric
Mouthful lead to A mouthfuls, the air inlet pipeline or pressure oil oil sources in-line that P mouthfuls connect compressed air gas source, A mouthfuls connect and connect under cylinder body
Mouthful, S mouthful lead to B mouthfuls, S mouthfuls run in air pipe or return line, B mouthful connect the upper interface of cylinder body, now, select and connect under cylinder body
Mouthful it is air inlet or oil inlet, the upper interface of cylinder body is exhaust outlet or oil return opening, piston stroking upward, until left movable rack,
Right movable rack is kept completely separate with jacking equipment driving rack and has the free position in a bit of gap.
4. rack-and-pinion jacking equipment horizontal safety catch according to claim 1, it is characterized in that, described electricity
Magnet valve coil electric, dead electricity is controlled by jacking equipment electric control system, the magnetic valve of described electric control system
Also include a contactor only controlled by general supply or the combination of relay adjunction tentaculum and energy storage device in control unit,
The described contactor only controlled by general supply or the normally-closed contact of relay adjunction tentaculum combination are connected across electromagnetic valve coil
Between energy storage device, when jacking equipment obtains electric, normally-closed contact is disconnected, and the connection between electromagnetic valve coil and energy storage device is also broken
Open, energy storage device energy storage；During jacking equipment dead electricity, other electricity-loss braking devices are stood including the dead electricity band brake apparatus that motor is carried
Play a role braking, but electromagnetic valve coil not dead electricity immediately, the described relay only controlled by general supply or connects
Tentaculum normally-closed contact dead electricity is closed, and electromagnetic valve coil is connected with energy storage device, when energy storage device is to the delay of electromagnetic valve coil
Between constant design tuning be other electricity-loss braking devices individually complete braking time and the electric-liquid combined unit that braking needs or
Person's electric-gas combined unit acts the difference of time delay；After the completion of energy storage device delay, electromagnetic valve coil dead electricity；When lifting is set
When standby general supply is disconnected without electricity, jacking equipment remain static, the disconnection of jacking equipment general supply, electromagnetic valve coil dead electricity, electricity
Magnet valve is in original state, descent of piston, left movable rack, right movable rack and jacking equipment sliding tooth by action of reset spring
Bar positive engagement, jacking equipment safety device is implemented to brake to elevator；Jacking equipment general supply is connected, the electric-controlled of jacking equipment
System processed according to operation need control electromagnetic valve coil electric or dead electricity, when jacking equipment prepare start when, jacking equipment
The electromagnet of electric control system control magnetic valve obtain electric, iron core action band movable valve plug is to operating position, piston stroking upward, until
Left movable rack, right movable rack and jacking equipment driving rack are kept completely separate and have the free position in a bit of gap, to rise
Drop equipment, which starts, to be ready；When jacking equipment needs to stop after starting, the electric control system of jacking equipment first disconnects lifting
Equipment motor power, motor deceleration, when close to stop position, such as when close to level position, jacking equipment it is electric
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 jacking equipment driving rack positive engagement；If there is abnormal conditions, such as jacking equipment falls suddenly
Electricity or because jacking equipment overspeed protective device action power dump or because jacking equipment reach the limit of guarded by location
Device action is cut off the electricity supply etc., and now jacking equipment general supply is immediately without electricity, other electricity-loss braking devices include motor from
The dead electricity band brake apparatus of band plays a role braking immediately, and electromagnetic valve coil dead electricity after the completion of energy storage device delay, magnetic valve resets
For original state, control descent of piston, left movable rack, right movable rack and jacking equipment driving rack positive engagement, it is ensured that
The safety of jacking equipment.
5. rack-and-pinion jacking equipment horizontal safety catch according to claim 1, it is characterized in that, described hand
Dynamic unlocking mechanism, including, a hand-operated direction valve is provided between magnetic valve and source of the gas, for it is required after power failure when, people
Work control to convert manually P mouths of magnetic valve input, R mouthfuls, S mouthfuls and air inlet pipeline or gas exhaust piping or in-line or
The connection of return line, controls the motion of piston, so as to control the braking or release of safety device, described hand-operated direction valve
The safe and reliable position that can not arbitrarily open is necessarily placed at, rules and regulations has been formulated and has strictly implemented, it is ensured that only possessed
Qualification, authorized personnel could open and use.
6. rack-and-pinion jacking equipment horizontal safety catch according to claim 1, it is characterized in that, it is configured with this
The installation method of the jacking equipment of the safety catch of invention includes, must when carrying out the early stage civil engineering relevant with installing
It must accurately be measured, each stop sill be constructed accordingly and accurate key-course by the difference in height to stop and stop
Standing between stop, the difference in height of plane is the integral multiple of driving rack tooth pitch on sill, when jacking equipment is installed, is correctly adjusted
Section jacking equipment is worked in coordination with driving rack so that jacking equipment just stops leveling accuracy from first layer and in median.
7. rack-and-pinion jacking equipment horizontal safety catch according to claim 1, it is characterized in that, described electricity
Magnet valve, the electric, dead electricity that obtains of its electromagnetic valve coil is controlled by jacking equipment electric control system, and its rate-determining steps includes as follows
Rate-determining steps, when jacking equipment prepares to start, the electric control system control jacking equipment drive system driving of jacking equipment
Jacking equipment moves up a distance element, makes the upper plane of the lower plane and right movable rack and left movable rack of load-supporting part
There is a microgap, the numerical value of described microgap is left movable rack, right movable rack and jacking equipment driving rack sideshake
0.2~0.6 times；Then the coil of the electric control system control magnetic valve of jacking equipment obtains electric.
8. a kind of elevator, it is characterized in that, install and use the gear teeth described in any claim in claim 1- claims 7
Bar jacking equipment horizontal safety catch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611221347.4A CN107032251B (en) | 2016-12-27 | 2016-12-27 | Rack-and-pinion lifting device horizontal safety catch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611221347.4A CN107032251B (en) | 2016-12-27 | 2016-12-27 | Rack-and-pinion lifting device horizontal safety catch |
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| CN107032251A true CN107032251A (en) | 2017-08-11 |
| CN107032251B CN107032251B (en) | 2018-12-18 |
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| CN112828356A (en) * | 2021-01-27 | 2021-05-25 | 北京航天华世科技股份有限公司 | Planer type milling machine and method for adjusting height of horizontal milling head of planer type milling machine |
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|---|---|
| CN107032251B (en) | 2018-12-18 |
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Effective date of registration: 20191224 Address after: 300000 Tianjin Tianjin Tianjin aviation Computing Technology Research Institute, Dongli District, Tianjin Patentee after: TIANJIN JINHANG INSTITUTE OF COMPUTING TECHNOLOGY Address before: 4, 528459 floor, No. 2, Xinxing Avenue, Zhongshan Town, Guangdong, A5 Patentee before: Liao Zhongmin |