CN108516358A - Spiral arm anti-fall device and screw unloader - Google Patents
Spiral arm anti-fall device and screw unloader Download PDFInfo
- Publication number
- CN108516358A CN108516358A CN201810225327.7A CN201810225327A CN108516358A CN 108516358 A CN108516358 A CN 108516358A CN 201810225327 A CN201810225327 A CN 201810225327A CN 108516358 A CN108516358 A CN 108516358A
- Authority
- CN
- China
- Prior art keywords
- spiral arm
- electromagnet
- mandril
- fall device
- ratchet
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
- B65G65/16—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads with rotary pick-up conveyors
- B65G65/22—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/24—Unloading land vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to screw unloader field, discloses a kind of spiral arm anti-fall device and screw unloader, anti-fall device include：The shaft of ratchet, the motor that ratchet is used to move up and down with driving spiral arm is connected；Mandril and electromagnet, electromagnet is by dead electricity or electric mandril must be made to be moved between the first position engaged with ratchet and the second position being disengaged with ratchet；Control unit, control unit is for controlling electromagnet dead electricity or obtaining electric.Spiral arm anti-fall device provided by the invention and the screw unloader with it, by control unit control electromagnet dead electricity or electric so that the mandril is moved between the first position engaged with ratchet and the second position being disengaged with ratchet, mandril when being engaged with ratchet can limiting motor shaft along the rotation for making direction that spiral arm declines, to effectively reduce the probability that spiral arm tenesmus failure occurs, equipment and the damage of personnel are avoided, the safe application performance of device is significantly improved.
Description
Technical field
The present invention relates to screw unloader fields, are unloaded more particularly to a kind of spiral arm anti-fall device and with its spiral
Vehicle device.
Background technology
Screw unloader can be divided into three kinds of bridge-type, gate-type and single arm type by the difference of its integral form.Wherein, bridge-type spiral
The operation principle of car unloader is to lean on spiral as propeller, when being rotated in dump of the spiral in coal car compartment, with helical contact
The coal at place is just spirally pushed out coal car compartment.Spiral is outer except itself rotation, and spiral arm support can also be swung along axis, make spiral raising or
It reduces.When unloading coal, open railway carriage both sides valve, car unloader is opened to above the railway carriage, by elevating mechanism and spiral can from upper and
Coal is discharged into coal receiving bunker lowerly, and grows along railway carriage with car unloader and draws off the coal of railway carriage substantially to moving.And the spiral shell of car unloader
The screw thread of rotation is two-way, therefore can be unloaded coal with both sides.The spiral lifting mechanism of screw unloader is by cantalever motor, spiral electricity
The compositions such as machine, band-type brake, chain, spiral large arm, big orbit arm, mechanical elevating part abbreviation spiral arm.When work, pass through opening
Electromagnetic brake, the rotation of cantalever motor descent direction, spiral arm slowly declines along big orbit arm, when dropping to certain position, opens
Beginning unloads coal operation.It unloads coal and finishes, cantalever motor ascent direction rotation, spiral arm resets.
Tenesmus failure occurs for spiral arm in order to prevent, and existing screw unloader only relies on the electromagnetic brake of lifting motor
It closes to prevent spiral arm from dropping, specifically, when band-type brake dead electricity is closed, brake lining can embrace motor driving shaft to prevent spiral
Arm decline, cause in this way band-type brake brake lining abrasion it is larger, and when band-type brake brake lining abrasion than it is more serious when, such as adjust not in time, spiral shell
Spiral arm will glide automatically, that is, spiral arm occurs and drops failure, may cause equipment and personal damage, therefore the safety in utilization of device
It can be relatively low.
Accordingly, there exist design a kind of needs for the spiral arm anti-fall device that spiral arm can be effectively prevent to drop.
Invention content
The purpose of the invention is to overcome the problems, such as it is of the existing technology may occur spiral arm drop failure, provide
A kind of spiral arm anti-fall device, the spiral arm anti-fall device can effectively prevent spiral arm to drop.
It is another object of the present invention in order to provide a kind of screw unloader including above-mentioned spiral arm anti-fall device.
To achieve the goals above, one aspect of the present invention provides a kind of spiral arm anti-fall device, and the anti-fall device includes：
The shaft of ratchet, the motor that the ratchet is used to move up and down with driving spiral arm is connected；Mandril and electromagnet, the electromagnetism
Body by dead electricity or electric make the mandril in the first position engaged with the ratchet and be disengaged with the ratchet the
It is moved between two positions；Control unit, described control unit is for controlling the electromagnet dead electricity or obtaining electric.
In the above-mentioned technical solutions, by control unit control electromagnet dead electricity or electric mandril is made to be engaged with ratchet
First position and the second position being disengaged with ratchet between move, being capable of limiting motor shaft when mandril is engaged with ratchet
Rotation along the direction for making spiral arm decline avoids equipment to effectively reduce the probability of happening of spiral arm tenesmus failure
With the damage of personnel, the safe application performance of device is significantly improved, saves cost to a certain extent, while being also beneficial to work
Make the raising of efficiency.
Preferably, the anti-fall device includes the transmission mechanism being arranged between the mandril and the electromagnet.
Preferably, the transmission mechanism includes holder and hinged connecting plate on the bracket, the mandril with it is described
The first end of connecting plate is hinged, the electromagnet be arranged at the second end of the connecting plate and by dead electricity or electric energy enough makes
Hinge of the connecting plate on the holder swing with drive the mandril the first position and the second position it
Between move.
Preferably, the anti-fall device includes the resetting apparatus between the connecting plate and the electromagnet, described
Resetting apparatus is set as to make connecting plate along the side for making the mandril return to the first position in the electromagnet dead electricity
To swing.
Preferably, the resetting apparatus is spring, and the spring is set as making the mandril return on connecting plate edge
The direction of the second position is compressed when swinging makes the connecting plate edge that the mandril be made to return to described first to be capable of providing
The biasing force when direction of position is swung.
Preferably, the transmission mechanism includes the pull rod hinged with the second end of the connecting plate, the electromagnet dead electricity
When the pull rod can be enable mobile or when electromagnet obtains electric makes the pull rod towards the electricity far from the electromagnet
Magnet is moved to drive the connecting plate to be swung around the hinge；The spring is set in outside the pull rod.
Preferably, described control unit is set as controlling the electromagnet dead electricity according to the torque of the motor or rotating speed
Or it obtains electric.
Preferably, the anti-fall device includes the limit switch for detecting the mandril position, described control unit with
The limit switch connection is to judge the position of the mandril according to the open and-shut mode of the limit switch.
Second aspect of the present invention provides a kind of screw unloader, and the screw unloader includes spiral arm, the driving spiral shell
The motor and above-mentioned spiral arm anti-fall device that spiral arm moves up and down, the ratchet of the anti-fall device and turning for the motor
Axis is connected.
Preferably, the screw unloader includes the gear in the shaft of the motor and matches with the gear
It closes and the rack in the spiral arm is set.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Fig. 1 is the broken section structural schematic diagram of the spiral arm anti-fall device of the preferred embodiment for the present invention；
Fig. 2 is the structural schematic diagram of another angle of the spiral arm anti-fall device of the preferred embodiment for the present invention.
Reference sign
1 ratchet, 2 mandril
3 electromagnet, 4 connecting plate
5 spring, 6 pull rod
7 limit switch, 8 braked wheel
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " typically refers to
Upper and lower, left and right shown in refer to the attached drawing；" inside and outside " refers to inside and outside the profile relative to each component itself.
One aspect of the present invention provides a kind of spiral arm anti-fall device, and the anti-fall device includes ratchet 1, mandril 2, electromagnet
3 and control unit, the shaft for the motor that the ratchet 1 is used to move up and down with driving spiral arm is connected；The electromagnet 3
By dead electricity or electric make the mandril 2 in the first position engaged with the ratchet 1 and be disengaged with the ratchet 1 the
It is moved between two positions；Control unit is for controlling 3 dead electricity of the electromagnet or obtaining electric.Wherein, electromagnet 3 can be electromagnet or
Other electromagnetic systems.
In the above-mentioned technical solutions, as depicted in figs. 1 and 2, by control unit control electromagnet 3 dead electricity or electric make
Mandril 2 is moved with ratchet 1 between the first position engaged and the second position being disengaged with ratchet 1, mandril 2 and ratchet 1
When engagement can limiting motor shaft along the rotation for making direction that spiral arm declines, drop failure to effectively reduce spiral arm
Probability of happening, avoid equipment and the damage of personnel, significantly improve the safe application performance of device, save to a certain extent
Cost, while being also beneficial to the raising of working efficiency.
Wherein, electromagnet 3 can directly affect the movement of mandril 2 between the first position and the second position, in order to reduce energy
Consumption, it is preferable that the anti-fall device includes the transmission mechanism being arranged between the mandril 2 and the electromagnet 3.Namely
It says, electromagnet 3 is the movement for influencing mandril 2 indirectly by transmission mechanism.
Also, the structure of transmission mechanism can there are many selections, it is preferable that the transmission mechanism includes holder and is hinged on
Connecting plate 4 on the holder, the mandril 2 and the first end of the connecting plate 4 are hinged, and the electromagnet 3 is arranged described
At the second end of connecting plate 4 and by dead electricity or electric energy enough makes hinge of the connecting plate 4 on the holder swing with band
The mandril 2 is moved to move between the first position and the second position.As shown in Figure 1, the articulated position of connecting plate 4 is leaned on
The first end of nearly installation mandril 2 is arranged, and connecting plate 4 can be made around hinge by the driving of low-force at the second end of such connecting plate 4
Spot wobble can reduce electric energy of the output to electromagnet, to reduce cost.
Mandril 2 in order to be guaranteed at the second position can return to first position to limit the rotation of ratchet 1, preferably in time
Ground, the anti-fall device include the resetting apparatus between the connecting plate 4 and the electromagnet 3, and the resetting apparatus is set
Being set to, at 3 dead electricity of electromagnet connecting plate 4 can swing along the direction for making the mandril 2 return to the first position.
Wherein, resetting apparatus can be selected according to factors such as installation space and costs, it is preferable that the resetting apparatus is spring
5, the spring 5 be set as the connecting plate 4 along make the mandril 2 return to the second position direction swing when compressed
Be capable of providing make the connecting plate 4 along make the mandril 2 return to the first position direction swing when biasing force.
And electromagnet 3 and raising electromagnet 3 influence the accuracy and facilitate peace that connecting plate 4 is swung in order to facilitate the installation of
Pretend the spring 5 for resetting apparatus, it is preferable that the transmission mechanism includes the pull rod hinged with the second end of the connecting plate 4
6, when 3 dead electricity of electromagnet can enable the pull rod 6 far from the movement of the electromagnet 3 or the electromagnet 3 it is electric when
The pull rod 6 is set to be moved towards the electromagnet 3 to drive the connecting plate 4 to be swung around the hinge；The spring 5 is set in
Outside the pull rod 6.
In addition, in order to ensure anti-fall device do not interfere with motor normal use and can realize anti-fall purpose, it is preferable that
Described control unit is set as controlling 3 dead electricity of the electromagnet according to the torque of the motor or rotating speed or obtain electric.Specifically,
When mandril 2 is in the first position engaged with ratchet 1, after motor receives gearing command, motor speed controller and anti-fall dress
The electromagnet opening time-delaying set, while motor torque increases to torque needed for anti-fall band-type brake release, control unit makes electromagnet 3
Must be electric, mandril 2 is moved to the second position being disengaged with ratchet 1 from first position, i.e. mandril is withdrawn, and is pushed up, the row lifted on 2
The tooth that journey is more than ratchet 1 is high, it is ensured that and ratchet 1 is two-way to be rotated without constraint, to enable motor normally to rotate to work,
Realize the safe operation of spiral arm.When driving malfunction occurs in spiral arm lifting work, when the rotating speed of motor is less than normal work
Setting speed, control unit makes 3 dead electricity of electromagnet of anti-fall device, mandril 2 be moved to first position from the second position, simultaneously
The electromagnetic brake of motor embraces braked wheel, so that spiral arm is stablized and stops, preventing spiral arm from dropping to realize, reduce band-type brake
The abrasion of brake lining improves the security control of spiral arm motor, ensure that the safe and stable operation of equipment.
Preferably, the anti-fall device includes the limit switch 7 for detecting 2 position of the mandril, described control unit
It is connect with the limit switch 7 to judge the position of the mandril 2 according to the open and-shut mode of the limit switch 7.For example,
Electromagnet 3 it is electric after, mandril 2 can change the open and-shut mode of switch when being moved to the second position from first position, for example, opening
Close by closed state change is in an open state or by opening state change is in off state, similarly, after 3 dead electricity of electromagnet, mandril 2 from
The second position can change the open and-shut mode of switch when being moved to first position, for example, switch is become closing from opening state
State is in an open state by closed state change, and control unit can be known according to the change of the open and-shut mode of limit switch 7
The location of mandril 2 is to send out corresponding control instruction.
Second aspect of the present invention provides a kind of screw unloader, and the screw unloader includes spiral arm, the driving spiral shell
The motor and above-mentioned spiral arm anti-fall device that spiral arm moves up and down, the ratchet 1 and the motor of the anti-fall device
Shaft is connected.When braked wheel 8 is mounted on motor the tip of the axis, ratchet 1 can be connected with braked wheel 8.Due to the screw unloader
Including above-mentioned spiral arm anti-fall device, therefore with all or at least part of technologies above for spiral arm anti-fall device
Effect, the details and effect of more specific technical solution can refer to above.
Wherein it is preferred to the screw unloader include mounted on the motor shaft on gear and with the tooth
Wheel matches and the rack in the spiral arm is arranged.Motor can be converted to moving up and down for spiral arm in this way.
Certainly can also be used can will be converted into the other structures moved up and down.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited thereto.At this
In the range of the technology design of invention, a variety of simple variants, including each particular technique can be carried out to technical scheme of the present invention
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No longer separately illustrate.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection domain.
Claims (10)
1. a kind of spiral arm anti-fall device, which is characterized in that the anti-fall device includes：
The shaft of ratchet (1), the motor that the ratchet (1) is used to move up and down with driving spiral arm is connected；
Mandril (2) and electromagnet (3), the electromagnet (3) by dead electricity or it is electric make the mandril (2) with the ratchet
(1) it is moved between the first position engaged and the second position being disengaged with the ratchet (1)；
Control unit, described control unit is for controlling the electromagnet (3) dead electricity or obtaining electric.
2. spiral arm anti-fall device according to claim 1, which is characterized in that the anti-fall device includes being arranged described
Transmission mechanism between mandril (2) and the electromagnet (3).
3. spiral arm anti-fall device according to claim 2, which is characterized in that the transmission mechanism includes holder and is hinged
Connecting plate (4) on the bracket, the mandril (2) and the first end of the connecting plate (4) are hinged, the electromagnet (3)
Be arranged at the second end of the connecting plate (4) and by dead electricity or electric energy enough make the connecting plate (4) on the holder
Hinge swing to drive the mandril (2) to move between the first position and the second position.
4. spiral arm anti-fall device according to claim 3, which is characterized in that the anti-fall device includes being located at the company
Resetting apparatus between fishplate bar (4) and the electromagnet (3), the resetting apparatus are set as in the electromagnet (3) dead electricity
Connecting plate (4) can be made to be swung along the direction for making the mandril (2) return to the first position.
5. spiral arm anti-fall device according to claim 4, which is characterized in that the resetting apparatus is spring (5), described
Spring (5) is set as being compressed when the connecting plate (4) edge makes the mandril (2) return to the direction swing of the second position
With the biasing force being capable of providing when making the connecting plate (4) edge that the mandril (2) be made to return to the direction swing of the first position.
6. spiral arm anti-fall device according to claim 5, which is characterized in that the transmission mechanism includes and the connection
The hinged pull rod (6) of the second end of plate (4), when electromagnet (3) dead electricity, can make the pull rod (6) far from the electromagnet
(3) the mobile or electromagnet (3) it is electric when the pull rod (6) can be made mobile described to drive towards the electromagnet (3)
Connecting plate (4) is swung around the hinge；It is external that the spring (5) is set in the pull rod (6).
7. the spiral arm anti-fall device according to any one of claim 1-6, which is characterized in that described control unit is arranged
To control the electromagnet (3) dead electricity according to the torque of the motor or rotating speed or obtaining electric.
8. the spiral arm anti-fall device according to any one of claim 1-6, which is characterized in that the anti-fall device includes
Limit switch (7) for detecting the mandril (2) position, described control unit are connect with the limit switch (7) with basis
The open and-shut mode of the limit switch (7) judges the position of the mandril (2).
9. a kind of screw unloader, which is characterized in that the screw unloader includes spiral arm, moves down in the driving spiral arm
Dynamic motor and the spiral arm anti-fall device according to any one of claim 1-8, the ratchet of the anti-fall device
(1) it is connected with the shaft of the motor.
10. screw unloader according to claim 9, which is characterized in that the screw unloader includes mounted on described
It gear in the shaft of motor and is matched with the gear and the rack in the spiral arm is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225327.7A CN108516358B (en) | 2018-03-19 | 2018-03-19 | Spiral arm anti-falling device and spiral car unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225327.7A CN108516358B (en) | 2018-03-19 | 2018-03-19 | Spiral arm anti-falling device and spiral car unloader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108516358A true CN108516358A (en) | 2018-09-11 |
| CN108516358B CN108516358B (en) | 2020-09-15 |
Family
ID=63433244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810225327.7A Active CN108516358B (en) | 2018-03-19 | 2018-03-19 | Spiral arm anti-falling device and spiral car unloader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108516358B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093615A (en) * | 2020-09-17 | 2020-12-18 | 罗跃红 | Multistage speed limit anti-falling device of construction elevator |
| CN117713443A (en) * | 2023-12-26 | 2024-03-15 | 北京天创金农科技有限公司 | Intelligent electric transport vehicle lifting motor and lifting assembly thereof |
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| FR1346282A (en) * | 1961-08-18 | 1963-12-20 | Parachute for lifts and the like | |
| CN2134381Y (en) * | 1992-01-06 | 1993-05-26 | 交通部秦皇岛港务局 | Spiral unloader |
| JPH06191783A (en) * | 1992-12-24 | 1994-07-12 | Hitachi Ltd | Escalator device |
| US5346054A (en) * | 1992-05-12 | 1994-09-13 | Touhaku Co., Ltd. | Suspended belt-type expandable and movable part holder unit |
| CN1117939A (en) * | 1994-08-26 | 1996-03-06 | 株式会社日立制作所 | A slant type passenger conveyer |
| CN202866264U (en) * | 2012-09-25 | 2013-04-10 | 成都市永洪机械有限公司 | High-rise building integral lifting scaffold anti-falling device |
| CN203582046U (en) * | 2013-11-29 | 2014-05-07 | 哈尔滨和泰电力设备有限公司 | Safety hook device of spiral car unloader |
| CN204022239U (en) * | 2014-08-13 | 2014-12-17 | 波士顿电梯(苏州)有限公司 | A kind of step chains emergency braking apparatus of staircase |
| CN205953391U (en) * | 2016-05-03 | 2017-02-15 | 浙江铭友环境工程有限公司 | Hoist engine self -locking mechanism |
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2018
- 2018-03-19 CN CN201810225327.7A patent/CN108516358B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1346282A (en) * | 1961-08-18 | 1963-12-20 | Parachute for lifts and the like | |
| CN2134381Y (en) * | 1992-01-06 | 1993-05-26 | 交通部秦皇岛港务局 | Spiral unloader |
| US5346054A (en) * | 1992-05-12 | 1994-09-13 | Touhaku Co., Ltd. | Suspended belt-type expandable and movable part holder unit |
| JPH06191783A (en) * | 1992-12-24 | 1994-07-12 | Hitachi Ltd | Escalator device |
| CN1117939A (en) * | 1994-08-26 | 1996-03-06 | 株式会社日立制作所 | A slant type passenger conveyer |
| CN202866264U (en) * | 2012-09-25 | 2013-04-10 | 成都市永洪机械有限公司 | High-rise building integral lifting scaffold anti-falling device |
| CN203582046U (en) * | 2013-11-29 | 2014-05-07 | 哈尔滨和泰电力设备有限公司 | Safety hook device of spiral car unloader |
| CN204022239U (en) * | 2014-08-13 | 2014-12-17 | 波士顿电梯(苏州)有限公司 | A kind of step chains emergency braking apparatus of staircase |
| CN205953391U (en) * | 2016-05-03 | 2017-02-15 | 浙江铭友环境工程有限公司 | Hoist engine self -locking mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093615A (en) * | 2020-09-17 | 2020-12-18 | 罗跃红 | Multistage speed limit anti-falling device of construction elevator |
| CN117713443A (en) * | 2023-12-26 | 2024-03-15 | 北京天创金农科技有限公司 | Intelligent electric transport vehicle lifting motor and lifting assembly thereof |
| CN117713443B (en) * | 2023-12-26 | 2024-05-07 | 北京天创金农科技有限公司 | Intelligent electric transport vehicle lifting motor and lifting assembly thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108516358B (en) | 2020-09-15 |
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