CN112320652B - Brake shoe gap adjusting device of mine hoist - Google Patents
Brake shoe gap adjusting device of mine hoist Download PDFInfo
- Publication number
- CN112320652B CN112320652B CN202011293393.1A CN202011293393A CN112320652B CN 112320652 B CN112320652 B CN 112320652B CN 202011293393 A CN202011293393 A CN 202011293393A CN 112320652 B CN112320652 B CN 112320652B
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- Prior art keywords
- brake
- shell
- fixedly connected
- adjusting device
- sliding
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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
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/42—Slack adjusters mechanical non-automatic
- F16D65/46—Slack adjusters mechanical non-automatic with screw-thread and nut
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The utility model provides a mine winder brake shoe clearance adjusting device, the mine winder field, including the hoisting wheel, its characterized in that: the method comprises the following steps: brake equipment, adjusting device, electromagnetic means, axis of rotation, motor and shell one, roof and diapire symmetry fixedly connected with brake equipment respectively in the shell one, adjusting device lower extreme fixedly connected with electromagnetic means, a shell inside wall is provided with the motor base, the motor is fixed on the motor base, axis of rotation one end is connected with a shell inside wall rotation, the axis of rotation other end and motor output shaft fixed connection, fixedly connected with lifting pulley in the axis of rotation, the lifting pulley is located between two brake equipment of top surface and bottom surface in the shell one. The invention can adjust the gap between the worn brake shoe and the lifting wheel, ensure the deceleration effect and avoid the accident caused by the over-worn brake shoe.
Description
Technical Field
The invention belongs to the field of mine hoists, and particularly relates to a brake shoe gap adjusting device of a mine hoist.
Background
The brake shoe of mine winder is used for stopping the lifting machine and removes, and the long-time friction of brake shoe and hoisting wheel can lead to the brake shoe loss attenuation, and the brake shoe loss attenuation can lead to the brake stroke to lengthen, and transmission efficiency is low to reduced the speed reduction effect, there is the potential safety hazard simultaneously.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a brake shoe gap adjusting device of a mine hoist.
The invention adopts the following technical scheme:
the utility model provides a mine winder brake shoe clearance adjusting device, includes the hoisting wheel, its characterized in that: the method comprises the following steps: brake equipment, adjusting device, electromagnetic means, axis of rotation, motor and shell one, roof and diapire symmetry fixedly connected with brake equipment respectively in the shell one, brake equipment includes: two brake base support arms and two brake bases, every brake base support arm lower extreme all with a brake base fixed connection, fixedly connected with adjusting device between two brake base support arms, sliding connection has electromagnetic means between two brake bases, adjusting device lower extreme fixedly connected with electromagnetic means, a shell inside wall is provided with the motor base, the motor is fixed on the motor base, axis of rotation one end is rotated with a shell inside wall and is connected, the axis of rotation other end and motor output shaft fixed connection, fixedly connected with lifting pulley in the axis of rotation, lifting pulley is located between two brake equipment of shell one interior top surface and bottom surface.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a brake shoe gap adjusting device of a mine hoist, which can adjust the gap between a worn brake shoe and a hoisting wheel, ensure the deceleration effect and solve the potential safety hazard; the brake shoe can be reminded when the brake shoe needs to be replaced, so that the brake shoe can be replaced in advance, and accidents caused by excessive brake shoe abrasion are avoided; the invention can also counteract the vibration generated by the elevator, and prevent the vibration from causing the resonance of the whole device to reduce the service life of the elevator; the invention can also carry out spot killing, prevent brake shoe locking from generating larger heat, accelerate the loss of the brake shoe and even cause the danger of fire.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an internal side view of the present invention;
FIG. 3 is a schematic view of the brake apparatus;
FIG. 4 is a schematic structural view of a brake base;
FIG. 5 is a schematic view of a brake pad structure;
FIG. 6 is a schematic view of the adjustment device;
fig. 7 is a schematic diagram of the structure of the electromagnetic device.
The names and reference numbers of the components referred to in the above figures are as follows:
the brake device comprises a lifting wheel 1, a belt wheel 1-1, a brake device 2, a fixing frame 2-1, a lug 2-3, a brake base support arm 2-2, a brake base 2-4, a limit bolt 2-4-2, an armature 2-4-3, a brake shoe 2-4-4, an adjusting device 3, a shell II 3-1, a limit column 3-2, a bidirectional stud 3-7, a knob 3-8, a threaded sleeve 3-3, a sliding column sleeve 3-4, a spring 3-5, a slider 3-6, an electromagnetic device 4, a shell III 4-1, a partition plate 4-4, a support column 4-5, an iron core 4-2, a coil 4-3, a rotating shaft 5, a motor 6 and a shell I7.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1 to 7, the present embodiment discloses a shoe gap adjusting device for a mine hoist, which comprises a hoisting wheel 1, and is characterized in that: the method comprises the following steps: brake equipment 2, adjusting device 3, electromagnetic means 4, axis of rotation 5, motor 6 and shell 7, roof and diapire symmetry fixedly connected with brake equipment 2 respectively in shell 7, brake equipment 2 includes: two brake base support arms 2-2 and two brake bases 2-4, every the 2-2 lower extreme of brake base support arm all with a brake base 2-4 fixed connection, fixedly connected with adjusting device 3 between two brake base support arms 2-2, sliding connection has electromagnetic means 4 between two brake bases 2-4, 3 lower extreme fixedly connected with electromagnetic means 4 of adjusting device, 7 inside walls of shell one are provided with the motor base, motor 6 is fixed on the motor base, 5 one end of axis of rotation is connected with 7 inside walls of shell one and rotates, the 5 other end of axis of rotation and the 6 output shaft fixed connection of motor, fixedly connected with lifting pulley 1 in axis of rotation 5, lifting pulley 1 is located between two brake devices 2 of top surface and bottom surface in shell one 7.
The second embodiment is as follows: as shown in fig. 1, the present embodiment is further directed to a first embodiment, wherein the device for adjusting shoe clearance of a mine hoist further comprises: the lifting device comprises two belt wheels 1-1, the two lifting wheels 1 are both fixedly connected to a rotating shaft 5, the rotating shaft 5 is fixedly connected with the belt wheels 1-1, and the belt wheels 1-1 are located between the two lifting wheels 1.
The third concrete implementation mode: as shown in fig. 1, in this embodiment, a first specific embodiment is further described, the number of the brake devices 2 is four, two brake devices 2 are respectively and symmetrically and fixedly connected to the inner top surface and the bottom surface of the first housing 7, and a corresponding lifting wheel 1 is arranged between every two brake devices 2 located on the inner top surface and the bottom surface of the first housing 7.
The fourth concrete implementation mode: as shown in fig. 3, the first embodiment is further described in the present embodiment, and each of the four braking devices 2 further includes: the brake device comprises a fixing frame 2-1 and two lugs 2-3, wherein two ends of the fixing frame 2-1 are respectively and rotatably connected with a brake base 2-4, the top wall and the bottom wall of the shell I7 are respectively and symmetrically and fixedly connected with the fixing frame 2-1, the opposite side surfaces of the two brake base support arms 2-2 are respectively and fixedly connected with the lugs 2-3, and two ends of the adjusting device 3 are respectively and rotatably connected with the lugs 2-3.
The fifth concrete implementation mode: as shown in fig. 4, the present embodiment is further described with respect to the first embodiment, and each of the two brake bases 2 to 4 includes: the limit bolt 2-4-2, the armature 2-4-3 and the brake shoes 2-4-4, each brake base 2-4 is provided with a base threaded hole 2-4-1, the limit bolt 2-4-2 passes through the base threaded hole 2-4-1 in a rotating way, the opposite side surfaces of the two brake bases 2-4 are respectively and fixedly connected with an armature 2-4-3, the brake shoe 2-4-4 is provided with a brake block threaded hole 2-4-5, the limit bolts 2-4-2 penetrate through the brake block threaded holes 2-4-5 in a rotating mode, and each brake base 2-4 is fixedly connected with the brake shoe 2-4-4 through the limit bolts 2-4-2.
The sixth specific implementation mode: as shown in fig. 2 and fig. 6, the present embodiment is further described as a first embodiment, and the adjusting device 3 includes: a second shell 3-1, a limiting column 3-2, a two-way stud 3-7, a knob 3-8, two threaded sleeves 3-3, two sliding column sleeves 3-4, two springs 3-5 and two sliding blocks 3-6, wherein a cavity is arranged inside the second shell 3-1, two holes of the second shell are arranged at two ends of the second shell 3-1, the two sliding column sleeves 3-4 are respectively inserted into the two holes of the second shell in a sliding manner, each sliding column sleeve 3-4 is respectively connected with a corresponding lug 2-3 in a rotating manner, each threaded sleeve 3-3 is respectively inserted into one sliding column sleeve 3-4 in a sliding manner, the upper ends of the two threaded sleeves 3-3 are respectively provided with one spring 3-5, and each spring 3-5 is arranged inside the sliding column sleeve 3-4, the opposite surfaces of the two threaded sleeves 3-3 are fixedly connected with a sliding block 3-6 respectively, the two sliding blocks 3-6 slide in the shell II 3-1, the middle of each sliding block 3-6 is provided with an internal threaded hole penetrating through the thickness of the sliding block, the two ends of the two-way stud 3-7 respectively rotate to penetrate out of the internal threaded hole, the two ends of the two-way stud 3-7 are arranged in the corresponding threaded sleeves 3-3 respectively, the middle of the two-way stud 3-7 is provided with a knob 3-8, the upper parts of the two inner side walls of the shell II 3-1 are fixedly connected with limiting columns 3-2 along the horizontal direction, the two sliding blocks 3-6 are provided with sliding block through holes penetrating through the thickness of the sliding blocks, and the two ends of the limiting columns 3-2 respectively slide into the corresponding sliding block through holes.
The seventh embodiment: as shown in fig. 2 and 7, the present embodiment is further described with respect to a first embodiment, and the electromagnetic device 4 includes: a shell III 4-1, a baffle 4-4, a support column 4-5, two iron cores 4-2 and two coils 4-3, the interior of the shell III 4-1 is of a hollow structure, the top surface of the shell III 4-1 is fixedly connected with a supporting column 4-5, the lower bottom surface of the second shell 3-1 is fixedly connected with a support column 4-5, two ends of the third shell 4-1 are respectively provided with three shell holes, each armature 2-4-3 respectively penetrates into the corresponding three shell holes in a sliding manner, a partition plate 4-4 is fixedly connected in the shell III 4-1 along the vertical direction, two iron cores 4-2 are fixedly connected in the shell III 4-1, the partition plate 4-4 is positioned between the two iron cores 4-2, and each iron core 4-2 is provided with a coil 4-3.
The working principle of the invention is as follows: a belt or a steel wire rope of the hoister is wound on the belt wheel 1-1, the motor 6 is electrified to drive the rotating shaft 5 to rotate, the rotating shaft 5 rotates to drive the hoisting wheel 1 to rotate, and the hoisting wheel 1 rotates to drive the belt wheel 1-1 to rotate, so that a heavy object can be lifted or dropped; when the elevator reaches a designated position or height and needs braking, two coils 4-3 are electrified to enable two iron cores 4-2 to generate magnetism, so that armatures 2-4-3 on two brake bases 2-4 can be adsorbed to move, the armatures 2-4-3 move to drive the two brake bases 2-4 to move, the two brake bases 2-4 move to drive the two brake base support arms 2-2 to oppositely rotate by taking the hinged fixed frame 2-1 as a circle center, the two brake bases 2-4 move to enable the brake shoes 2-4-4 to continuously rub the peripheral side of the lifting wheel 1, and the lifting wheel 1 can be stopped by utilizing friction force, so that the elevator is stopped; the two brake base support arms 2-2 move to simultaneously drive the two sliding column sleeves 3-4 to slide towards the inner part of the shell II 3-1 and simultaneously compress the two springs 3-5, when the electromagnetic device 4 is powered off, the two brake base support arms 2-2 can be driven to reset under the action of the two springs 3-5, so that the brake shoe 2-4-4 is separated from the lifting wheel 1 to stop friction, the two coils 4-3 are electrified with alternating current to enable the electromagnet to continuously attract and release the armature 2-4-3, namely the electromagnet is electromagnetically switched over, or the continuous control circuit is switched off and closed to realize the attraction and release of the armature 2-4-3 of the electromagnet, thereby realizing the click-off effect of the four brake devices 2 and preventing the brake shoe 2-4-4 from generating heat with the peripheral side of the lifting wheel 1 for a long time, leading to rapid wear of the brake shoe 2-4-4, or to the occurrence of fire; meanwhile, the two springs 3-5 can counteract the vibration generated when the brake shoes 2-4-4 are rubbed, so that the service life of the device can be prevented from being reduced by resonance; when a gap is generated between the brake shoe 2-4-4 and the peripheral side surface of the lifting wheel 1 after the brake shoe 2-4-4 is worn, the rotating knob 3-8 drives the two-way stud 3-7 to rotate, the two-way stud 3-7 rotates to drive the two threaded sleeves 3-3 to move towards the middle part of the two-way stud 3-7 through the limiting action of the limiting column 3-2, the two threaded sleeves 3-3 move to drive the two sliding column sleeves 3-4 to move, so that the two brake base support arms 2-2 are pulled to move, the two brake base support arms 2-2 move to drive the two brake bases 2-4 to move, and the two brake bases 2-4 move to enable the brake shoe 2-4 to be close to the peripheral side surface of the lifting wheel 1, so that the effect of adjusting the gap between the brake shoe 2-4-4 is realized; when the abrasion loss of the brake shoe 2-4-4 reaches the limit, the limit bolt 2-4-2 is flush with the outer side surface of the brake shoe 2-4-4, the limit bolt 2-4-2 can rub the outer side surface of the lifting wheel 1 during braking, and the friction between metal and metal can generate harsh noise, so that an operator can be reminded to replace the brake shoe 2-4-4 as soon as possible, and the brake effect is prevented from being weakened to cause safety accidents.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a mine winder brake shoe clearance adjusting device, includes hoisting wheel (1), its characterized in that: the method comprises the following steps: brake equipment (2), adjusting device (3), electromagnetic means (4), axis of rotation (5), motor (6) and shell (7), roof and diapire symmetry fixedly connected with brake equipment (2) respectively in shell (7), brake equipment (2) include: two brake base support arms (2-2) and two brake bases (2-4), every brake base support arm (2-2) lower extreme all with a brake base (2-4) fixed connection, fixedly connected with adjusting device (3) between two brake base support arms (2-2), sliding connection has electromagnetic means (4) between two brake bases (2-4), adjusting device (3) lower extreme fixedly connected with electromagnetic means (4), the inside wall of shell one (7) is provided with the motor base, motor (6) are fixed on the motor base, axis of rotation (5) one end is connected with shell one (7) inside wall rotation, the axis of rotation (5) other end and motor (6) output shaft fixed connection, fixedly connected with lifting pulley (1) on axis of rotation (5), lifting wheel (1) is located between two brake equipment (2) of top surface and bottom surface in shell (7), adjusting device (3) include: a second shell (3-1), a limiting column (3-2), a two-way stud (3-7), a knob (3-8), two threaded sleeves (3-3), two sliding column sleeves (3-4), two springs (3-5) and two sliding blocks (3-6), wherein a cavity is arranged in the second shell (3-1), two ends of the second shell (3-1) are provided with second shell holes, the two sliding column sleeves (3-4) respectively penetrate into the second shell holes in a sliding manner, each sliding column sleeve (3-4) is respectively connected with a corresponding lug (2-3) in a rotating manner, each threaded sleeve (3-3) respectively penetrates into one sliding column sleeve (3-4), the upper ends of the two threaded sleeves (3-3) are respectively provided with one spring (3-5), each spring (3-5) is arranged inside a sliding column sleeve (3-4), the opposite surfaces of the two threaded sleeves (3-3) are respectively and fixedly connected with a sliding block (3-6), the two sliding blocks (3-6) slide in a second shell (3-1), the middle part of each sliding block (3-6) is provided with an internal threaded hole penetrating through the thickness of the sliding block, the two ends of a bidirectional stud (3-7) respectively rotate to penetrate out of the internal threaded hole, the two ends of the bidirectional stud (3-7) are respectively arranged in the corresponding threaded sleeves (3-3), the middle part of the bidirectional stud (3-7) is provided with a knob (3-8), the upper parts of the two inner side walls of the second shell (3-1) are respectively and fixedly connected with a limiting column (3-2) along the horizontal direction, and the two sliding blocks (3-6) are respectively provided with a sliding block through hole penetrating through the thickness of the sliding block, two ends of the limiting column (3-2) respectively penetrate into the corresponding slide block through holes in a sliding mode.
2. The mine hoist shoe clearance adjustment device of claim 1, wherein: mine winder brake shoe clearance adjusting device still includes: the lifting wheel comprises belt wheels (1-1), the number of the lifting wheels (1) is two, the two lifting wheels (1) are fixedly connected to a rotating shaft (5), the rotating shaft (5) is fixedly connected with the belt wheels (1-1), and the belt wheels (1-1) are located between the two lifting wheels (1).
3. The mine hoist shoe clearance adjustment device of claim 1, wherein: brake equipment (2) set up to four, shell one (7) interior top surface and bottom surface symmetry fixedly connected with two brake equipment (2) respectively, per two be located and be provided with a corresponding lifting wheel (1) between the brake equipment (2) of shell one (7) interior top surface and bottom surface.
4. The mine hoist shoe clearance adjustment device of claim 3, wherein: the four brake devices (2) further comprise: the brake device comprises a fixing frame (2-1) and two lugs (2-3), wherein two ends of the fixing frame (2-1) are respectively rotatably connected with a brake base (2-4), the top wall and the bottom wall in the shell I (7) are respectively and fixedly connected with the fixing frame (2-1) symmetrically, the opposite side surfaces of the two brake base support arms (2-2) are respectively and fixedly connected with the lugs (2-3), and two ends of the adjusting device (3) are respectively rotatably connected with the lugs (2-3).
5. The mine hoist shoe clearance adjustment device of claim 1, wherein: the two brake bases (2-4) both comprise: the brake shoe comprises limit bolts (2-4-2), armatures (2-4-3) and brake shoes (2-4-4), wherein each brake base (2-4) is provided with a base threaded hole (2-4-1), the limit bolts (2-4-2) penetrate through the base threaded holes (2-4-1) in a rotating mode, the opposite side faces of the two brake bases (2-4) are fixedly connected with one armature (2-4-3) respectively, the brake shoes (2-4-4) are provided with brake pad threaded holes (2-4-5), the limit bolts (2-4-2) penetrate through the brake pad threaded holes (2-4-5) in a rotating mode, and each brake base (2-4) is fixedly connected with the brake shoe (2-4-4) through the limit bolts (2-4-2).
6. The mine hoist shoe clearance adjustment device of claim 5, wherein: the electromagnetic device (4) comprises: the coil comprises a shell III (4-1), a partition plate (4-4), support columns (4-5), two iron cores (4-2) and two coils (4-3), wherein the interior of the shell III (4-1) is of a hollow structure, the top surface of the shell III (4-1) is fixedly connected with the support columns (4-5), the bottom surface of the shell II (3-1) is fixedly connected with the support columns (4-5), shell three holes are respectively formed in two ends of the shell III (4-1), each armature (2-4-3) respectively penetrates into the corresponding shell three holes in a sliding mode, the partition plate (4-4) is fixedly connected into the shell III (4-1) along the vertical direction, and the two iron cores (4-2) are fixedly connected into the shell III (4-1), the partition plate (4-4) is positioned between the two iron cores (4-2), and each iron core (4-2) is provided with one coil (4-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293393.1A CN112320652B (en) | 2020-11-18 | 2020-11-18 | Brake shoe gap adjusting device of mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293393.1A CN112320652B (en) | 2020-11-18 | 2020-11-18 | Brake shoe gap adjusting device of mine hoist |
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| Publication Number | Publication Date |
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| CN112320652A CN112320652A (en) | 2021-02-05 |
| CN112320652B true CN112320652B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011293393.1A Active CN112320652B (en) | 2020-11-18 | 2020-11-18 | Brake shoe gap adjusting device of mine hoist |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1037610B (en) * | 1975-04-24 | 1979-11-20 | Volpi Spa | ELECTROMAGNETIC DEVICE FOR THE BRAKE CONTROL OF THE MOTOR SHAFT OF LIFTS AND LOADERS |
| CN203903886U (en) * | 2014-06-19 | 2014-10-29 | 长冈机电股份有限公司 | Permanent magnetic type gearless machine drum brake mechanism |
| CN106241638A (en) * | 2015-11-09 | 2016-12-21 | 大冶市星云机电科技研究所 | A kind of cage type elevator brake unit |
| CN106744449B (en) * | 2016-12-22 | 2019-03-19 | 宁波市海翔远洋捕捞用具有限公司 | A kind of winch with brake gear |
| CN206940320U (en) * | 2017-05-03 | 2018-01-30 | 苏州蒙特纳利驱动设备有限公司 | Three brake shoe formula traction machine brake sticking brake devices |
| CN107654545B (en) * | 2017-10-09 | 2023-11-24 | 快意电梯股份有限公司 | Elevator host machine brake shoe abrasion detection device and detection method |
| CN108002164B (en) * | 2017-12-22 | 2023-06-02 | 深圳市质量安全检验检测研究院 | Elevator brake action state detection device and detection method |
| CN208361783U (en) * | 2018-05-30 | 2019-01-11 | 宁波欣达电梯配件厂 | Brake brake block abrasion detection structure |
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2020
- 2020-11-18 CN CN202011293393.1A patent/CN112320652B/en active Active
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