CN205740140U - A kind of air hoist - Google Patents
A kind of air hoist Download PDFInfo
- Publication number
- CN205740140U CN205740140U CN201620417173.8U CN201620417173U CN205740140U CN 205740140 U CN205740140 U CN 205740140U CN 201620417173 U CN201620417173 U CN 201620417173U CN 205740140 U CN205740140 U CN 205740140U
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- China
- Prior art keywords
- air
- loop
- valve
- brake
- gear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of novel limit for tonnage formula air hoist, including actuating unit, reducing gear, elevating mechanism, reducing gear, arrestment mechanism and atmospheric control；Described actuating unit includes air motor, and described air motor drives reducing gear to slow down by the Poewr transmission mechanism that shaft coupling, power transmission shaft are constituted；Described reducing gear includes secondary gear reducer, described secondary gear reducer realizes slowing down by two pairs of gear pair engagements, described two pairs of speed reducing gear pairs and elevating mechanism have identical central shaft, it is achieved that be the up and down motion of elevating mechanism by the convert rotational motion of gear shaft；Atmospheric control uses limit for tonnage protective loop, position limitation protection loop, elevating loop, brake circuit, by with the cooperating of machine driven system, it is achieved the elevating movement of weight and overload, position limitation protection.This utility model stable performance, work efficiency is high, safety is good, light weight, easy to operate.
Description
Technical field
This utility model belongs to technical field of crane equipment, is specifically related to a kind of air hoist.
Background technology
Along with developing rapidly of China's intelligence manufacture, power jacking device emerges in an endless stream like the mushrooms after rain, on market
Hoisting machinery kind is the most constantly weeded out the old and bring forth the new, but requires the most more to come to the automatization of hoisting machinery, specialization, safety etc. simultaneously
The highest.
The most the most frequently used simple crane gear has bottle gouard moved by hands and electric block two class, and bottle gouard moved by hands is owing to being only applicable to
The short distance handling of small freight, lifted load is limited, and the speed of rising is slow, causes its work efficiency low, and lifts by crane
During chain be susceptible to inclination and cause weight to come off, easily there is security incident；Although electric block work efficiency is high, but
Motor No-mistake Principle is protected, easy motor damage, starts too violent, runs shakiness, starts braking and swings serious, is easily generated calabash derailing
Entirety is fallen and is caused security incident；There is the probability of electric leakage sparking, and poor in anti-explosion property, for requiring explosion-proof field simultaneously
Close particularly disadvantageous.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of scope of application is wider, safety
The higher novel limit for tonnage formula air hoist of performance.
A kind of air hoist, including fixing housing, the actuating unit of setting in fixing housing, reducing gear, elevating mechanism,
Arrestment mechanism, and atmospheric control；Described actuating unit includes the air motor being fixed on housing side and with pneumatic
The power transmission shaft that motor is connected by shaft coupling, reducing gear includes the two-stage gear reduction being arranged on housing opposite side
The little gear being meshed with the first master gear on device, power transmission shaft, elevating mechanism includes the lifting tooth being arranged on housing central section
Wheel, the lifting sprocket wheel connected with lifter wheel central shaft, the loop chain being looped around on lifting sprocket wheel, the end of loop chain arrange lower extension
Hook, arrestment mechanism includes the brake arranged with decelerator homonymy.
Further, described actuating unit is positioned at housing side, reducing gear and arrestment mechanism are arranged at housing opposite side,
Elevating mechanism is arranged at housing central section.
Further, described actuating unit is pneumatic vane motor, it is achieved the rotating of air motor；Power transmission shaft
Being enclosed within the bearing of the left and right sides, bearing is fixed on bearing block；Reducing gear uses secondary gear reducer.
Further, described atmospheric control includes limit for tonnage protective loop, position limitation protection loop, elevating loop, braking
Loop.
Further, described limit for tonnage protective loop include air relief valve, gas source switch, air motor speed-regulating switch, three five
Logical valve or gate shuttle valve, Pneumatic time-delay valve, two position two-way valve, choke valve and gas tank.Gas source switch is connected to be provided with gas
On the air motor of dynamic motor speed-regulating switch；Choke valve, Pneumatic time-delay valve are connected on the branch road of two position two-way valve.
Further, described position limitation protection loop includes limit switch, two position two-way valve, check valve, pressure regulating pump, pressure
Table.Described check valve is connected on limit for tonnage protective loop.
Further, described elevating loop includes brake cylinder, air motor, acoustic filter.Described acoustic filter is arranged on gas
On the shell of dynamic motor, to reduce exhaust noise.
Further, described brake circuit includes that brake, check valve, described brake are connected on brake circuit, with
Brake cylinder is collectively forming double brake.
This utility model has simple in construction, work efficiency is high, safety is good, light weight, easy to operate advantage.
It is embodied in:
1, operation principle is novel, and employing air compressor is as power source, permissible in inflammable and explosive occasions such as petrochemical industries
Relieved use, this is that electric block cannot be accomplished.
2, use automatic load limitation defencive function, complete machine will not be caused damage.
3, using position limitation protection function, even if going beyond the limit of position, therefore weight also will not fall.
4, air hoist startup is steady, rising or falling speed is fast, improves work efficiency.
5, operation and maintenance are convenient, and air motor need not miscellaneous part to prevent electric spark, simpler in structure, little
Ingeniously.
6, air motor can realize stepless time adjustment, location more accurate.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is right TV structure schematic diagram of the present utility model.
Fig. 3 is pneumatic system schematic diagram of the present utility model.
Detailed description of the invention
Seeing Fig. 1, a kind of limit for tonnage formula air hoist of this utility model offer and atmospheric control thereof, including being fixed on
Air motor 2-1 in housing 1, is provided with actuating unit 2, elevating mechanism 3, reducing gear 4, brake in described fixing housing 1
Structure 5.
During use, hanging on the crossbeam of horizontal positioned by limit for tonnage formula air hoist by upper hook 6, operator start
Rising button, the gases at high pressure of generation are entered air motor 2-1 by air inlet pipe 7 by air compressor, order about air motor 2-1
Starting to rotate, air motor 2-1 is connected with power transmission shaft 2-3 by shaft coupling 2-2, and the two ends of power transmission shaft 2-3 set
Put two symmetrical bearing 2-4, two bearing 2-4 are fixed on the bearing block 2-5 at two ends, left and right simultaneously.
Little gear 4-1 on the end of power transmission shaft 2-3 is meshed, first with reducing gear 4 first master gear 4-2
Arrange at the extended position of master gear 4-2 that the first pinion 4-2 ', the first master gear 4-2 and the first pinion 4-2 ' have jointly
Central shaft, the first pinion 4-2 ' is meshed with lifter wheel 3-1, and it is main that the opposite side at power transmission shaft 2-3 arranges second
Gear 4-3, is connected the second pinion 4-3 ' having at the extended position of identical central axle with the second master gear 4-3, the second secondary tooth
Wheel 4-3 ' imparts power to lifter wheel 3-1, reaches required rotating speed, lifter wheel 3-1 by the double reduction of decelerator
Being connected with sprocket wheel 3-2 central shaft, when lifter wheel 3-1 rotates, band movable sprocket 3-2 rotates, and sprocket wheel 3-2 is by driving the chain of cincture
Bar 3-3 rises, thus is lifted up by suspension hook 3-4 by weight.
When weight arrives specified altitude assignment, operator press stop button, the brake arranged in reducing gear 4 side
Structure 5 makes disc brake with fixed caliper respond rapidly to by atmospheric control, and brake disc 5-1 rotates with power transmission shaft 2-3, is fixed on
Checking cylinder 5-2 in frame is pressed in brake disc 5-1 by brake block 5-3 and realizes braking, prevents weight falling from high altitude, thus reaches
Purpose to braking；
When suspension hook 3-4 reaches capacity position, limit switch 10-1 closes, and source of the gas interrupts air motor 2-1 and stops operating,
Avoid air hoist to reach the limit of position and continue to rise,
When operator start decline button, control air motor 2-1 by commutation main air valve switching gas circuit and invert, sprocket wheel
3-2 drives chain 3-3 to move downward, it is achieved the landing of weight.
In this example, the exhaust ports of air motor 2-1 arranges deafener 8, is used for reducing the noise that aerofluxus brings.
This example medium power power transmission shaft 2-3 two ends are cased with two rolling bearing 2-4, prevent power transmission shaft 2-3 in transmission
During occur play.
In this example, brake uses disk brake, and this brake structural is simple, good heat dissipation effect.
This utility model also provides for the atmospheric control of a kind of above-mentioned air hoist, including limit for tonnage protective loop 9, spacing
Protective loop 10, elevating loop 11, brake circuit 12；
Wherein, limit for tonnage protective loop 9 includes that source of the gas 9-1, described source of the gas 9-1 pass sequentially through air relief valve 9-2, gas source switch 9-
3, air motor speed-regulating switch 9-4, three position five-way valve 9-5 or gate shuttle valve 9-6, choke valve 9-7, Pneumatic time-delay valve 9-8, gas
Tank 9-9 and two position two-way valve 9-10, two position two-way valve 9-11,.Described gas source switch 9-3 is connected to be provided with pneumatic horse
Reach on the air motor 2-1 of speed-regulating switch 9-4；Described choke valve 9-7, Pneumatic time-delay valve 9-8 are connected to two position two-way valve
On the branch road of 9-10.When starting rising button, the tangential left position of three position five-way valve 9-5, limit for tonnage protective loop 9 air inlet, a road gas
Flowing to two position two-way valve 9--11 and arrive shuttle valve 9-6, gas jack-up spool, normally closed type brake cylinder 11-1 starts working, pneumatic horse
Reach 2-1 to rotate forward；Another road flows to gas tank 9-9 through choke valve 9-7 and Pneumatic time-delay valve 9-8, along with the increasing of load, when air pressure surpasses
When crossing the spring pressure that two position two-way valve 9-10 presets, the tangential left position of two position two-way valve 9-10, make two position two-way valve 9-11 disconnect,
Normally closed type brake air 11-1 supplies interruption, recovers to original operating position, and air motor 2-1 stops operating, it is achieved that pneumatic time
The limit for tonnage defencive function on road.
Wherein, position limitation protection loop 10 includes limit switch 10-1, two position two-way valve 10-2, pressure regulating pump 10-3, Pressure gauge
10-4, check valve 10-5.Described check valve 10-5 is connected on limit for tonnage protective loop 9, when heavy lift to extreme position, and limit
Bit switch 10-1 stops weight to continue to rise, and gas increases in the left position of two position two-way valve 10-2 enters pressure regulating pump 10-3
Pressure, arrives check valve 10-5 by Pressure gauge 10-4, owing to the operating pressure in position limitation protection loop 10 is more than limit after supercharging
Carrying the operating pressure of protective loop 9, normally closed type brake cylinder 11-1 makes air motor 2-1 quit work, it is to avoid air hoist
Reach the limit of position to continue to rise the harm brought.Achieve the position limitation protection function of pneumatic circuit.
Wherein, elevating loop 11 includes brake cylinder 11-1, air motor 11-2, acoustic filter 11-3.Described acoustic filter 11-
On 3 shells being arranged on air motor 2-1, it is used for reducing exhaust noise.When three position five-way valve 9-5 switches to left position, gas
Sequentially passing through two position two-way valve 9-11, shuttle valve 9-6, after arriving shuttle valve 9-6, gases at high pressure promote the spool of shuttle valve 9-6 to move to right, and stop
Car cylinder 11-1 disconnects, and braking function lost efficacy, and air motor 2-1 starts to rotate forward, and the power transmission shaft 2-3 of air motor 2-1 leads to
After crossing the double reduction of reducing gear 4, change into low-speed big, order about sprocket wheel 3-2 and rotate, be looped around the chain on sprocket wheel 3-2
Bar 3-3 starts to be lifted up weight；When three position five-way valve 9-5 switches to right position, air motor 2-1 main shaft inverts, it is achieved weight
The descending motion of thing.
Wherein, brake circuit 12 includes brake 5, check valve 12-1.Described brake 5 is connected on brake circuit 12,
Starting stop button during work, three position five-way valve 9-5 switches to middle position, and a road gas makes brake 5 respond rapidly to, is fixed on machine
Checking cylinder 5-2 on frame is pressed in brake disc 5-1 by brake block 5-3, and brake disc 5-1 stops power transmission shaft 2-3 to continue to turn
Dynamic；Another road gas enters check valve 12-1 from valve body lower end, and it makes spool face be compressed tightly against on valve seat together with spring force,
Gas cannot pass through, and air pressure reduces brake cylinder 11-1 Guan Bi, and air motor 2-1 stops operating, it is achieved pneumatic circuit dual
Braking.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, without departing from the some improvement under this utility model principle premise and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. an air hoist, it is characterised in that: include fixing housing, the actuating unit arranged in fixing housing, reducing gear,
Elevating mechanism, arrestment mechanism, and atmospheric control；Described actuating unit include the air motor being fixed on housing side with
And the power transmission shaft being connected by shaft coupling with air motor, reducing gear includes the secondary gear being arranged on housing opposite side
The little gear being meshed with the first master gear on wheel decelerator, power transmission shaft, elevating mechanism includes being arranged on housing central section
Lifter wheel, the end setting lifting sprocket wheel, the loop chain being looped around on lifting sprocket wheel, loop chain being connected with lifter wheel central shaft
Lower draw-bar, arrestment mechanism includes the brake arranged with decelerator homonymy.
A kind of air hoist the most according to claim 1, it is characterised in that: described actuating unit is positioned at housing side, subtracts
Speed mechanism is with arrestment mechanism is arranged at housing opposite side, elevating mechanism is arranged at housing central section.
A kind of air hoist, it is characterised in that: described actuating unit is pneumatic vane motor,
Realize the rotating of air motor；Power transmission shaft is enclosed within the bearing of the left and right sides, and bearing is fixed on bearing block；Reductor
Structure uses secondary gear reducer.
4. according to the arbitrary described a kind of air hoist of claims 1 to 3, it is characterised in that: described atmospheric control includes
Limit for tonnage protective loop, position limitation protection loop, elevating loop, brake circuit.
A kind of air hoist the most according to claim 4, it is characterised in that: described limit for tonnage protective loop include air relief valve,
Gas source switch, air motor speed-regulating switch, three position five-way valve or gate shuttle valve, Pneumatic time-delay valve, two position two-way valve, choke valve
And gas tank；Gas source switch is connected to be provided with on the air motor of air motor speed-regulating switch；Choke valve, Pneumatic time-delay valve
It is connected on the branch road of two position two-way valve.
A kind of air hoist the most according to claim 4, it is characterised in that: described position limitation protection loop includes spacing opening
Pass, two position two-way valve, check valve, pressure regulating pump, Pressure gauge；Described check valve is connected on limit for tonnage protective loop.
A kind of air hoist the most according to claim 4, it is characterised in that: described elevating loop includes brake cylinder, gas
Dynamic motor, acoustic filter；Described acoustic filter is arranged on the shell of air motor, to reduce exhaust noise.
A kind of air hoist the most according to claim 4, it is characterised in that: described brake circuit includes brake, unidirectional
Valve, described brake is connected on brake circuit, is collectively forming double brake with brake cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417173.8U CN205740140U (en) | 2016-05-06 | 2016-05-06 | A kind of air hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417173.8U CN205740140U (en) | 2016-05-06 | 2016-05-06 | A kind of air hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205740140U true CN205740140U (en) | 2016-11-30 |
Family
ID=57371079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417173.8U Expired - Fee Related CN205740140U (en) | 2016-05-06 | 2016-05-06 | A kind of air hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205740140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819360A (en) * | 2016-05-06 | 2016-08-03 | 安徽三雕起重机械有限公司 | Pneumatic hoist |
| CN108163735A (en) * | 2018-03-06 | 2018-06-15 | 上海布拓传动系统设备有限公司 | A kind of 12 tons of hydraulic hoist |
-
2016
- 2016-05-06 CN CN201620417173.8U patent/CN205740140U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819360A (en) * | 2016-05-06 | 2016-08-03 | 安徽三雕起重机械有限公司 | Pneumatic hoist |
| CN105819360B (en) * | 2016-05-06 | 2018-11-20 | 安徽三雕起重机械有限公司 | A kind of air hoist |
| CN108163735A (en) * | 2018-03-06 | 2018-06-15 | 上海布拓传动系统设备有限公司 | A kind of 12 tons of hydraulic hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pneumatic hoist clutch brake Effective date of registration: 20180929 Granted publication date: 20161130 Pledgee: China Postal Savings Bank Limited by Share Ltd. Chizhou branch Pledgor: ANHUI SANDIAO LIFTING MACHINERY CO.,LTD. Registration number: 2018340000520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |