CN107572439B - A kind of building tower crane hoisting mechanism power-off protector - Google Patents
A kind of building tower crane hoisting mechanism power-off protector Download PDFInfo
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- CN107572439B CN107572439B CN201710823298.XA CN201710823298A CN107572439B CN 107572439 B CN107572439 B CN 107572439B CN 201710823298 A CN201710823298 A CN 201710823298A CN 107572439 B CN107572439 B CN 107572439B
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- overload protecting
- protecting mechanism
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Abstract
The invention discloses a kind of building tower crane hoisting mechanism power-off protectors; including connecting substrate and screw up the bolt inside connecting substrate; two supporting vertical plates are fixed in the upper surface of the connecting substrate; an axle sleeve is fixed at the top of one of them described supporting vertical plate; a main hollow housing is fixed by bearing in the inside of axle sleeve; the center of main one end face of hollow housing is bolted a connecting plate; an overload protecting mechanism is fixed in first rotary shaft being provided centrally with its integral structure in one end of the connection board face, an end face of the first rotary shaft.The present invention is when in use; once there is circut breaking in the power supply of motor; the device can be braked in time or be increased the effect of frictional force; so that there is the phenomenon that braking or slowly falling in high-level weight; the generation of accident phenomenon caused by prevent due to weight high-speed falling, in addition, the device has overload protecting mechanism; it enables to the biggish object of weight to be not lifted, prevents motor from burning out.
Description
Technical field
The present invention relates to building machinery technical field, specially a kind of building tower crane hoisting mechanism power-off protector.
Background technique
Currently, building trade is each essential industry of country, at work, in order to by weight from low longitudinal height
High longitudinal height is promoted, tower crane can be all used, and the capital equipment that source is used to provide power in tower crane is motor, and it is electric
Motivation in actual use, especially when weight is being promoted, if there is power-off, will cause motor directly to be shut down,
Weight is under gravity, it is more likely that phenomenon of falling causes serious accident to occur.
Summary of the invention
The purpose of the present invention is to provide a kind of building tower crane hoisting mechanism power-off protectors, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of building tower crane hoisting mechanism power-off protection
Device including connecting substrate and screws up the bolt inside connecting substrate, and two supporting vertical plates are fixed in the upper surface of the connecting substrate,
An axle sleeve is fixed at the top of one of them described supporting vertical plate, a main hollow housing is fixed by bearing in the inside of the axle sleeve,
The center of one end face of main hollow housing is bolted a connecting plate, the one end of the connection board face be provided centrally with
An overload protecting mechanism is fixed in first rotary shaft of its integral structure, an end face of first rotary shaft, and the overload is protected
One second rotary shaft is fixed at the center of shield one end face of mechanism, and one end face of the second rotary shaft is provided centrally with and its integral type
The mounting flange of structure is provided centrally with main hollow structure inside the main hollow housing, and the main hollow housing is another
A movable plate is installed in the inside at end, and a compressive state is installed in the inside for being located at the main hollow structure in one end of the movable plate
High-pressure spiral spring, the side of the movable plate is socketed an annular ring, is provided on the inside of the main hollow housing for ring
The mobile mobile groove structure of shape circle, the connecting shaft of one end face of movable plate being provided centrally with its integral type, the company
Spindle, which runs through an end face of the main hollow housing and is located at external one end, is provided with the main cylindrical shell with its integral structure
Body, one end of the main cylindrical shell are provided with main stairstepping bulge-structure, and the center of the principal post shape enclosure interior inlays one
Permanent magnetism scapus fixes an electromagnetism fixing seal mechanism at the top of another described supporting vertical plate.
Preferably, the overload protecting mechanism includes the main hollow housing of overload protecting mechanism, overload protecting mechanism use
Main hollow section, overload protecting mechanism column spinner, the secondary hollow housing of overload protecting mechanism, overload protecting mechanism are secondary hollow
Section, overload protecting mechanism movable plate, overload protecting mechanism helical spring, overload protecting mechanism push rod and overload protection
Mechanism semi-circular recesses structure.
Preferably, the overload protecting mechanism center of main one end face of hollow housing and the second rotary shaft fix company
It connects, center of the overload protecting mechanism inside main hollow housing is the main hollow section of the overload protecting mechanism, described
Overload protecting mechanism is protected with main hollow housing in one overload of inside socket for being located at the main hollow section of the overload protecting mechanism
Mechanism column spinner is protected, the overload protecting mechanism is provided with multiple and its integral structure mistake with the side of main hollow housing
The secondary hollow housing of protection mechanism is carried, the overload protecting mechanism is in overload protecting mechanism pair with the inside of secondary hollow housing
The inside of empty interval, the secondary hollow section of the overload protecting mechanism is being located at the main hollow section of the overload protecting mechanism
An overload protecting mechanism movable plate is placed in one end face, and the secondary hollow section of the overload protecting mechanism is protected in the overload in place
It protects between one end of mechanism movable plate and fixes an overload protecting mechanism helical spring, the overload protecting mechanism movable plate
An end face be provided with the overload protecting mechanism push rod with its integral structure, and the overload protecting mechanism push rod runs through
The main hollow housing of the overload protecting mechanism, and it is located at the inside in the main hollow section of the overload protecting mechanism, the mistake
It is semicircular structure being located at the overload protecting mechanism with the one end in main hollow section that protection mechanism, which is carried, with push rod, the overload
The side of protection mechanism column spinner is provided with the overload protecting mechanism for placing overload protecting mechanism push rod end
With semi-circular recesses structure, one first rotary shaft is fixed in one end of overload protecting mechanism column spinner.
Preferably, the initial length of the overload protecting mechanism helical spring is greater than the overload protecting mechanism pair
The length in hollow section.
Preferably, electromagnetism fixing seal mechanism includes that electromagnetism fixing seal mechanism is solid with main cylindrical shell, electromagnetism
It is solid to determine the secondary cylindrical shell of sealing mechanism, electromagnetism fixing seal mechanism iron core, electromagnetism fixing seal mechanism coil and electromagnetism
Determine sealing mechanism stepped groove structure.
Preferably, electromagnetism fixing seal mechanism is provided with and its integral structure with one end of main cylindrical shell
Electromagnetism fixing seal mechanism inlays one with the center of principal post shape enclosure interior with secondary cylindrical shell, electromagnetism fixing seal mechanism
Electromagnetism fixing seal mechanism iron core, and electromagnetism fixing seal mechanism iron core side be socketed an electromagnetism fix it is close
Sealing mechanism coil, electromagnetism fixing seal mechanism pair cylindrical shell one end face be provided centrally with the electromagnetism fix it is close
Sealing mechanism stepped groove structure.
Preferably, the surface of electromagnetism fixing seal mechanism stepped groove structure is handled by rough surface.
Preferably, when electromagnetism fixing seal mechanism enters electric current, positioned at permanent magnetism scapus one end magnetism with it is described forever
The magnetism of magnet column end is identical.
Compared with prior art, once the beneficial effects of the present invention are: in the use of the present invention, the power supply of motor occurs
Circut breaking, the device can be braked in time or be increased the effect of frictional force, so that high-level weight occurs
Braking or slowly the phenomenon that falling, thus caused by preventing due to weight high-speed falling accident phenomenon generation, in addition, should
Device has overload protecting mechanism, enables to the biggish object of weight to be not lifted, prevents motor from burning out.
Detailed description of the invention
Fig. 1 is a kind of complete section structural schematic diagram of building tower crane hoisting mechanism power-off protector of the present invention；
Fig. 2 is the structural representation of overload protecting mechanism in a kind of building tower crane hoisting mechanism power-off protector of the present invention
Figure；
Fig. 3 is the complete section knot of electromagnetism fixing seal mechanism in a kind of building tower crane hoisting mechanism power-off protector of the present invention
Structure schematic diagram；
In figure: 1, connecting substrate, 2, bolt, 3, supporting vertical plate, 4, axle sleeve, 5, main hollow housing, 6, connecting plate, 7, first
Rotary shaft, 8, overload protecting mechanism, 81, overload protecting mechanism main hollow housing, 82, the main hollow area of overload protecting mechanism
Between, 83, overload protecting mechanism column spinner, 84, overload protecting mechanism secondary hollow housing, 85, during overload protecting mechanism is secondary
Empty interval, 86, overload protecting mechanism movable plate, 87, overload protecting mechanism helical spring, 88, overload protecting mechanism is with pushing away
Bar, 89, overload protecting mechanism semi-circular recesses structure, 9, the second rotary shaft, 10, mounting flange, 11, main hollow structure,
12, high-pressure spiral spring, 13, movable plate, 14, annular ring, 15, mobile groove structure, 16, connecting shaft, 17, main cylindrical shell,
18, permanent magnetism scapus, 19, main stairstepping bulge-structure, 20, electromagnetism fixing seal mechanism, 201, electromagnetism fixing seal mechanism master
Cylindrical shell, 202, electromagnetism fixing seal mechanism secondary cylindrical shell, 203, electromagnetism fixing seal mechanism iron core, 204, electromagnetism
Fixing seal mechanism coil, 205, electromagnetism fixing seal mechanism stepped groove structure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of embodiment provided by the invention: including connecting substrate 1 and screwing up inside connecting substrate 1
Two supporting vertical plates 3 are fixed in bolt 2, the upper surface of the connecting substrate 1, and the top of one of them supporting vertical plate 3 fixes one
A main hollow housing 5 is fixed by bearing in the inside of axle sleeve 4, the axle sleeve 4, and the center of main 5 one end face of hollow housing is logical
It crosses bolt 2 and fixes a connecting plate 6, the first rotary shaft of 6 one end face of connecting plate being provided centrally with its integral structure
7, an overload protecting mechanism 8 is fixed in an end face of first rotary shaft 7, and the center of 8 one end face of overload protecting mechanism is solid
Fixed one second rotary shaft 9, the mounting flange of 9 one end face of the second rotary shaft being provided centrally with its integral structure
10, main hollow structure 11, the inside peace of main 5 other end of hollow housing are provided centrally with inside the main hollow housing 5
A movable plate 13 is filled, the height of a compressive state is installed in the inside for being located at the main hollow structure 11 in one end of the movable plate 13
Helical spring 12 is pressed, the side of the movable plate 13 is socketed an annular ring 14, and the inside of the main hollow housing 5, which is provided with, to be used for
The mobile mobile groove structure 15 of annular ring 14, the connecting shaft of 13 1 end face of movable plate being provided centrally with its integral type
16, the connecting shaft 16, which runs through an end face of the main hollow housing 5 and is located at external one end, to be provided with and its integral type knot
The main cylindrical shell 17 of structure, one end of the main cylindrical shell 17 are provided with main stairstepping bulge-structure 19, the main cylindrical shell
A permanent magnetism scapus 18 is inlayed at center inside body 17, and an electromagnetism fixing seal machine is fixed at the top of another supporting vertical plate 3
Structure 20；Magnetism and the permanent magnetism scapus 18 when electromagnetism fixing seal mechanism 20 enters electric current, positioned at 18 one end of permanent magnetism scapus
The magnetism of end is identical.
Referring to Fig. 2, the overload protecting mechanism 8 includes overload protecting mechanism main hollow housing 81, overload protection machine
The main hollow section 82 of structure, overload protecting mechanism column spinner 83, overload protecting mechanism secondary hollow housing 84, overload protection machine
The secondary hollow section 85 of structure, overload protecting mechanism movable plate 86, overload protecting mechanism helical spring 87, overload protecting mechanism
With push rod 88 and overload protecting mechanism semi-circular recesses structure 89；Main 81 1 end face of hollow housing of the overload protecting mechanism
Center be fixedly connected with the second rotary shaft 9, the overload protecting mechanism with the center inside main hollow housing 81 be the mistake
The main hollow section 82 of protection mechanism is carried, the overload protecting mechanism is being located at the overload protecting mechanism with main hollow housing 81
Overload protecting mechanism column spinner 83, the main hollow housing of the overload protecting mechanism are socketed with the inside in the hollow section 82 of master
81 side is provided with multiple overload protecting mechanism secondary hollow housing 84, overload protecting mechanisms with its integral structure
Inside with secondary hollow housing 84 is the secondary hollow section 85 of overload protecting mechanism, the secondary hollow section of the overload protecting mechanism
Overload protecting mechanism activity is placed in the end face for being located at the main hollow section 82 of the overload protecting mechanism in 85 inside
Plate 86, the secondary hollow section 85 of the overload protecting mechanism is between the one end of the overload protecting mechanism with movable plate 86
An overload protecting mechanism helical spring 87 is fixed, an end face of overload protecting mechanism movable plate 86 is provided with and one
The overload protecting mechanism push rod 88 of body formula structure, and overload protecting mechanism push rod 88 runs through the overload protecting mechanism
With main hollow housing 81, and it is located at the inside in the main hollow section 82 of the overload protecting mechanism, the overload protecting mechanism use
Push rod 88 is semicircular structure being located at the overload protecting mechanism with the one end in main hollow section 82, the overload protecting mechanism
The overload protecting mechanism for placing 88 end of overload protecting mechanism push rod is provided with half with the side of column spinner 83
Circular groove structure 89, the overload protecting mechanism fix one first rotary shaft 7 with one end of column spinner 83；The overload protection
The initial length of mechanism helical spring 87 is greater than the length in the secondary hollow section 85 of the overload protecting mechanism, groundwork
Principle is: maximum rotation dynamics when rotation is acted on using the elastic force of overload protecting mechanism helical spring 87, when lifting object
Quality be greater than overload protecting mechanism helical spring 87 elastic force when, overload protecting mechanism push rod 88 can be detached from overload protection
Mechanism semi-circular recesses structure 89, so that the main hollow housing 81 of overload protecting mechanism and overload protecting mechanism rotation
Relative rotation occurs for column 83, so that weight will not be elevated, and motor can continue to rotate, certain overload protecting mechanism
The maximum dynamics that motor can drive should be less than with the elastic force of helical spring 87.
Referring to Fig. 3, electromagnetism fixing seal mechanism 20 include the main cylindrical shell 201 of electromagnetism fixing seal mechanism,
Electromagnetism fixing seal mechanism is used with secondary cylindrical shell 202, electromagnetism fixing seal mechanism iron core 203, electromagnetism fixing seal mechanism
Coil 204 and electromagnetism fixing seal mechanism stepped groove structure 205；The main cylindrical shell of electromagnetism fixing seal mechanism
201 one end be provided with the secondary cylindrical shell 202 of the electromagnetism fixing seal mechanism of its integral structure, the electromagnetism fixation is close
Sealing mechanism inlays an electromagnetism fixing seal mechanism iron core 203, and the electromagnetism with the center inside main cylindrical shell 201
The side of fixing seal mechanism iron core 203 is socketed an electromagnetism fixing seal mechanism coil 204, the electromagnetism fixing seal machine
202 1 end face of structure pair cylindrical shell is provided centrally with electromagnetism fixing seal mechanism stepped groove structure 205；Institute
The surface for stating electromagnetism fixing seal mechanism stepped groove structure 205 is handled by rough surface, and cardinal principle is: being utilized
Electromagnetic conversion principle enables electromagnetism fixing seal mechanism iron core 203 to generate magnetism, when electrical connections, turns in electromagnetism
It changes under the action of principle, the both ends of electromagnetism fixing seal mechanism iron core 203 generate magnetism, at this point, generating with permanent magnetism scapus 18
The magnetism of the active force to repel each other, both ends can carry out effective change effect according to sense of current is changed, once there is electricity
When motivation circut breaking, at this point, electromagnetic action releases, at this point, main stairstepping is convex under the elastic force effect of high-pressure spiral spring 12
It plays structure 19 and electromagnetism fixing seal mechanism stepped groove structure 205 is in close contact, the frictional force when between the two is greater than
When the gravity of hoist object, braking action can be played, it, can when frictional force between the two is less than the gravity of hoisting heavy
Play the role of certain buffer deceleration.
Specifically used mode: in present invention work, to the corresponding site that the device is bolted on to tower crane, then
Mounting flange 10 is fixedly connected with the center of one end face of elevator wheel, then, the conducting wire for being used to connect motor is connected in series to
The power input end of electromagnetism fixing seal mechanism coil 204, when electrical connections, under the action of electromagnetic conversion principle, electricity
The both ends of magnetically fixed sealing mechanism iron core 203 generate magnetism, at this point, the active force to repel each other with the generation of permanent magnetism scapus 18, two
The magnetism at end can carry out effective change effect according to sense of current is changed, when there is electric motor circuit breaking phenomenon, this
When, electromagnetic action releases, at this point, main stairstepping bulge-structure 19 and electromagnetism are solid under the elastic force effect of high-pressure spiral spring 12
Determine the close contact of sealing mechanism stepped groove structure 205, when frictional force between the two is greater than the gravity of hoisting heavy, just
Braking action can be played, when frictional force between the two is less than the gravity of hoisting heavy, certain buffering can be played and subtracted
Speed effect, to play anti-breaking electro ultrafiltration.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (8)
1. a kind of building tower crane hoisting mechanism power-off protector, including connecting substrate (1) and screw up internal in connecting substrate (1)
Bolt (2), it is characterised in that: two supporting vertical plates (3) are fixed in the upper surface of the connecting substrate (1), one of them described branch
It is fixed an axle sleeve (4) at the top of support vertical plate (3), a main hollow housing (5), institute are fixed by bearing in the inside of the axle sleeve (4)
The center for stating main (5) one end face of hollow housing is fixed a connecting plate (6) by bolt (2), in (6) one end face of connecting plate
The heart is provided with the first rotary shaft (7) with its integral structure, and an overload protection is fixed in an end face of first rotary shaft (7)
One second rotary shaft (9), second rotary shaft (9) are fixed in mechanism (8), the center of (8) one end face of overload protecting mechanism
Be provided centrally with and the mounting flange of its integral structure (10) of one end face, the internal center of the main hollow housing (5)
It is provided with main hollow structure (11), a movable plate (13) are installed in the inside of main hollow housing (5) other end, the movable plate
(13) the high-pressure spiral spring (12) of a compressive state is installed in the inside for being located at the main hollow structure (11) in one end, described
The side of movable plate (13) is socketed an annular ring (14), is provided on the inside of the main hollow housing (5) for annular ring (14)
Mobile mobile groove structure (15), the connecting shaft of (13) one end face of movable plate being provided centrally with its integral type
(16), the connecting shaft (16) through the main hollow housing (5) an end face and be located at external one end and be provided with and one
One end of the main cylindrical shell (17) of body formula structure, the main cylindrical shell (17) is provided with main stairstepping bulge-structure (19),
A permanent magnetism scapus (18) is inlayed at the internal center of the main cylindrical shell (17), and the top of another supporting vertical plate (3) is solid
A fixed electromagnetism fixing seal mechanism (20).
2. a kind of building tower crane hoisting mechanism power-off protector according to claim 1, it is characterised in that: the overload
Protection mechanism (8) includes overload protecting mechanism main hollow housing (81), the main hollow section (82) of overload protecting mechanism, overload
Protection mechanism column spinner (83), overload protecting mechanism pair hollow housing (84), the secondary hollow section of overload protecting mechanism
(85), overload protecting mechanism movable plate (86), overload protecting mechanism are with helical spring (87), overload protecting mechanism push rod
(88) and overload protecting mechanism is with semi-circular recesses structure (89).
3. a kind of building tower crane hoisting mechanism power-off protector according to claim 2, it is characterised in that: the overload
Protection mechanism is fixedly connected with the center of main (81) one end face of hollow housing with the second rotary shaft (9), the overload protecting mechanism
It is the main hollow section (82) of the overload protecting mechanism, the overload protecting mechanism with the internal center of main hollow housing (81)
An overload protection machine is socketed in the inside for being located at the main hollow section (82) of the overload protecting mechanism with main hollow housing (81)
Structure is provided with multiple and its integral structure with the side of main hollow housing (81) with column spinner (83), the overload protecting mechanism
Overload protecting mechanism with secondary hollow housing (84), the inside of the secondary hollow housing (84) of the overload protecting mechanism is overload guarantor
The secondary hollow section (85) of mechanism is protected, the inside of the secondary hollow section (85) of the overload protecting mechanism is being located at overload guarantor
Place an overload protecting mechanism movable plate (86), the overload protecting mechanism in the end face for protecting the main hollow section (82) of mechanism
It is being located at the overload protecting mechanism with fixing an overload protection machine between one end of movable plate (86) with secondary hollow section (85)
Structure is provided with the mistake with its integral structure with an end face of movable plate (86) with helical spring (87), the overload protecting mechanism
Protection mechanism is carried with push rod (88), and the overload protecting mechanism led with push rod (88) through the overload protecting mechanism it is hollow
Shell (81), and it is located at the inside of the main hollow section (82) of the overload protecting mechanism, the overload protecting mechanism push rod
It (88) is semicircular structure, the overload protecting mechanism being located at one end of the main hollow section (82) of the overload protecting mechanism
The side of column spinner (83) is provided with the overload protecting mechanism for placing overload protecting mechanism push rod (88) end
With semi-circular recesses structure (89), the overload protecting mechanism fixes one first rotary shaft (7) with one end of column spinner (83).
4. a kind of building tower crane hoisting mechanism power-off protector according to claim 3, it is characterised in that: the overload
The initial length of protection mechanism helical spring (87) is greater than the length of the secondary hollow section (85) of the overload protecting mechanism.
5. a kind of building tower crane hoisting mechanism power-off protector according to claim 1, it is characterised in that: the electromagnetism
Fixing seal mechanism (20) includes electromagnetism fixing seal mechanism main cylindrical shell (201), electromagnetism fixing seal mechanism subpost
Shape shell (202), electromagnetism fixing seal mechanism iron core (203), electromagnetism fixing seal mechanism are fixed with coil (204) and electromagnetism
Sealing mechanism is with stepped groove structure (205).
6. a kind of building tower crane hoisting mechanism power-off protector according to claim 5, it is characterised in that: the electromagnetism
Fixing seal mechanism is provided with and the electromagnetism fixing seal mechanism of its integral structure pair with one end of main cylindrical shell (201)
Cylindrical shell (202), it is solid that an electromagnetism is inlayed at the internal center of electromagnetism fixing seal mechanism main cylindrical shell (201)
Determine sealing mechanism iron core (203), and the side socket one electromagnetism fixation of electromagnetism fixing seal mechanism iron core (203) is close
For sealing mechanism with coil (204), being provided centrally with for (202) one end face of electromagnetism fixing seal mechanism pair cylindrical shell is described
Electromagnetism fixing seal mechanism is with stepped groove structure (205).
7. a kind of building tower crane hoisting mechanism power-off protector according to claim 6, it is characterised in that: the electromagnetism
The surface of fixing seal mechanism stepped groove structure (205) is handled by rough surface.
8. a kind of building tower crane hoisting mechanism power-off protector according to claim 1, it is characterised in that: when electromagnetism is solid
When determining sealing mechanism (20) into electric current, it is located at the magnetism and the magnetic of permanent magnetism scapus (18) end of permanent magnetism scapus (18) one end
Property is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823298.XA CN107572439B (en) | 2017-09-13 | 2017-09-13 | A kind of building tower crane hoisting mechanism power-off protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823298.XA CN107572439B (en) | 2017-09-13 | 2017-09-13 | A kind of building tower crane hoisting mechanism power-off protector |
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| Publication Number | Publication Date |
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| CN107572439A CN107572439A (en) | 2018-01-12 |
| CN107572439B true CN107572439B (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710823298.XA Active CN107572439B (en) | 2017-09-13 | 2017-09-13 | A kind of building tower crane hoisting mechanism power-off protector |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775587A (en) * | 2018-02-08 | 2019-05-21 | 浙江鸿安建设有限公司 | A kind of tower crane driving part attachment device |
| CN108488267A (en) * | 2018-03-28 | 2018-09-04 | 冯志勇 | A kind of transmission mechanism power-off brake device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54138266A (en) * | 1978-04-18 | 1979-10-26 | Mitsubishi Heavy Ind Ltd | Electrically driven automatic tension mooring winch |
| CA2253237A1 (en) * | 1996-05-08 | 1997-11-13 | Julio C. Ramos | Method and device for controlling a lift brake |
| CN104773667A (en) * | 2015-04-16 | 2015-07-15 | 上海振华重工(集团)股份有限公司 | Flange type installed brake assembly of winch mechanism |
| CN105156522A (en) * | 2015-09-30 | 2015-12-16 | 天津津航技术物理研究所 | Power-lossing type joint rotation electromagnetic lock device |
| CN205260693U (en) * | 2015-12-31 | 2016-05-25 | 天津市灵捷传动技术有限公司 | Miniature mistake electric brake |
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2017
- 2017-09-13 CN CN201710823298.XA patent/CN107572439B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54138266A (en) * | 1978-04-18 | 1979-10-26 | Mitsubishi Heavy Ind Ltd | Electrically driven automatic tension mooring winch |
| CA2253237A1 (en) * | 1996-05-08 | 1997-11-13 | Julio C. Ramos | Method and device for controlling a lift brake |
| CN104773667A (en) * | 2015-04-16 | 2015-07-15 | 上海振华重工(集团)股份有限公司 | Flange type installed brake assembly of winch mechanism |
| CN105156522A (en) * | 2015-09-30 | 2015-12-16 | 天津津航技术物理研究所 | Power-lossing type joint rotation electromagnetic lock device |
| CN205260693U (en) * | 2015-12-31 | 2016-05-25 | 天津市灵捷传动技术有限公司 | Miniature mistake electric brake |
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| CN107572439A (en) | 2018-01-12 |
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