AU2017386169B2 - Anti-falling hoist transmission - Google Patents
Anti-falling hoist transmission Download PDFInfo
- Publication number
- AU2017386169B2 AU2017386169B2 AU2017386169A AU2017386169A AU2017386169B2 AU 2017386169 B2 AU2017386169 B2 AU 2017386169B2 AU 2017386169 A AU2017386169 A AU 2017386169A AU 2017386169 A AU2017386169 A AU 2017386169A AU 2017386169 B2 AU2017386169 B2 AU 2017386169B2
- Authority
- AU
- Australia
- Prior art keywords
- gear
- clutch
- left brake
- brake
- friction plate
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0453—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with planetary or epicycloidal gear, e.g. differential gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
An anti-falling hoist transmission comprises a reel (3), a planetary gear train, a clutch, a right brake, a left brake, a motor (25), a high-speed shaft (28), a transmission gear mechanism, a duplex gear pump (34), an oil tank (33), and a two-position four-way solenoid directional valve (32). During normal lifting, the left and right brakes are in a non-braking state, the clutch is engaged, and the motor controls the rotational speed of the reel (3) by means of the planetary gear train. In case of a sudden power failure accompanied by a brake failure, the clutch disengages, and the left and right brakes perform braking, the planetary gear train changes into a fixed-axis gear train, the left and right brakes respectively stop a sun gear (4) and a planetary gear carrier (7), and ultimately the reel (3) is stopped. When the rotational speed of the reel (3) is close to zero, the duplex gear pump (34) stops working, the left brake is released, a load continues to rotate the reel (3), and the duplex gear pump (34) continues to work. The process is repeated continuously until the load lands at a low speed. By means of the structure, the hoist transmission of the invention can prevent an accident caused by a load landing at a high speed in case of a sudden power failure accompanied by a brake failure.
Description
[00011 The present invention relates to an anti-falling hoist transmission, and particularly relates to a transmission which can implement flexible deceleration braking of a hoist in case of a sudden power failure accompanied by a brake failure, thereby preventing the hoist from falling off directly and further preventing equipment damage and even casualties.
[0002J A hoist is used for hoisting a load from a lower place to a higher place and is widely applied to various industries such as factories, mines, ports, steel and electric power. For the hoist, a motor is generally used for driving a speed reducer, and then, the speed reducer drives a reel to wind a steel wire rope so as to hoist cargoes. If a sudden power failure occurs due to a circuit failure, the hoist loses power, and the cargoes quickly fall down under the action of gravity, thereby easily causing equipment damage and even casualties. Therefore, the hoist is provided with a braking device which has a conventional braking function and is also used for implementing braking in case of a sudden power failure so as to prevent accidents. If the braking device fails, a landing accident will inevitably occur in case of a sudden power failure.
Technical Problem
[0003] The objective of the present invention is to provide an anti-falling function hoist transmission so as to overcome the defects in the existing technologies. The device can implement flexible deceleration braking of the hoist in case of a sudden power failure accompanied by a brake failure, and finally, cargoes can land flexibly and slowly.
Technical Solution
[0004] In order to achieve the above objective, the present invention adopts the
following technical solution: An anti-falling hoist transmission includes a reel, a planetary gear train, a clutch, a right brake, a left brake, a motor, a high-speed shaft, a transmission gear mechanism, a duplex gear pump, an oil box and a two-position four way solenoid directional valve;
[0005] the reel is mounted on a central shaft by means of a reel bearing;
[0006] the planetary gear train includes an internal gear, a planetary gear, a planetary gear carrier and a sun gear, the internal gear is fixedly connected to an end part of the reel, the sun gear is fixedly mounted on the central shaft, the planetary gear carrier is mounted on the central shaft by means of a planetary gear carrier bearing, the planetary gear is mounted on the planetary gear carrier, and the planetary gear is respectively meshed with the internal gear and the sun gear;
[0007] the clutch includes a clutch housing, a clutch internal friction plate set, a clutch external friction plate set, a thrust bearing, a clutch piston and a clutch oil cylinder, the clutch internal friction plate set is connected to an extension shaft of the planetary gear carrier by means of a spline, the clutch external friction plate set is connected to the clutch housing by means of a spline, one end of the clutch piston extends into the clutch oil cylinder, and the thrust bearing is mounted between the other end of the clutch piston and the clutch internal friction plate set;
[0008] the right brake includes a right brake spring, a right brake housing, a right brake external friction plate set and a right brake internal friction plate set, the right brake housing is fixedly connected to a rack, the right brake external friction plate set is connected to the right brake housing by means of a spline, the right brake internal friction plate set is connected to the extension shaft of the planetary gear carrier by means of a spline, one end of the right brake spring is fixedly connected to the clutch oil cylinder, and the other end of the right brake spring is connected to the right brake external friction plate set;
[0009] the clutch piston is fixedly connected to the right brake external friction plate set by means of a connecting rod;
[0010] the left brake includes a left brake housing, a left brake internal friction plate set, a left brake external friction plate set, a left brake oil cylinder, a left brake piston and a left brake spring, the left brake oil cylinder and the left brake housing are fixedly
connected to the rack, the left brake internal friction plate set is connected to the central shaft by means of a spline, the left brake external friction plate set is connected to the left brake housing by means of a spline, one end of the left brake piston extends into the left brake oil cylinder, the other end of the left brake piston is connected to the left brake external friction plate set, one end of the left brake spring is connected to the left brake oil cylinder, the other end of the left brake spring is connected to the left brake piston, and the motor is connected to the high-speed shaft by means of a coupler I;
[0011] the transmission gear mechanism includes a gear I, a gear III, a gear IV and a gear II, the gear I and the gear III are fixedly mounted on the high-speed shaft, the gear IV is mounted on the extension shaft of the planetary gear carrier by means of a bearing of the gear IV, the gear IV is meshed with the gear III, the clutch housing is fixedly connected to the gear IV, the gear II is fixedly mounted on the central shaft, and the gear II is meshed with the gear I;
[0012J an input shaft of the duplex gear pump is connected to the high-speed shaft by means of a coupler II, an oil inlet of the duplex gear pump is connected to the oil box, and a front pump oil outlet of the duplex gear pump is connected to the left brake, the clutch and the right brake by means of a lubricating oil inlet pipeline; and
[0013] a rear pump oil outlet of the duplex gear pump is connected to an oil inlet of the two-position four-way solenoid directional valve, a working port I of the two position four-way solenoid directional valve is connected to the left brake oil cylinder through a left brake pressure oil pipeline, a working port II of the two-position four-way solenoid directional valve is connected to the clutch oil cylinder through a clutch pressure oil pipeline, and an oil return port of the two-position four-way solenoid directional valve is connected to the oil box.
[0014] Further, the lubricating oil inlet pipeline is provided with an overflow valve I, and the overflow valve I is connected to the oil box.
[0015J Further, the pipeline by which the rear pump oil outlet of the duplex gear pump is connected to the oil inlet of the two-position four-way solenoid directional valve is provided with an overflow valve II, and the overflow valve II is connected to the oil box.
Advantageous Effect
[00161 The hoist transmission provided by the present invention can implement flexible deceleration braking of the hoist in case of a sudden power failure accompanied by a brake failure, and finally, cargoes can land flexibly and slowly; and the transmission also has the advantages of compact structure, large bearing capacity, stable operation and the like, and is low in manufacturing cost and convenient to maintain.
[00171 Fig. 1 is an anti-falling hoist transmission provided by the present invention.
In the figure, 1-Central shaft, 2-Reel bearing, 3-Reel, 4-Sun gear, 5-Internal gear, 6 Planetary gear, 7-Planetary gear carrier, 8-Right brake spring, 9-Connecting rod, 10 Clutch oil cylinder, 11-Clutch piston, 12-Thrust bearing, 13-Clutch internal friction plate set, 14-Clutch external friction plate set, 15-Clutch housing, 16-Gear IV, 17 Bearing of gear IV, 18-Gear II, 19-Left brake oil cylinder, 20-Left brake piston, 21-Left brake spring, 22-Left brake external friction plate set, 23-Left brake internal friction plate set, 24-Left brake housing, 25-Motor, 26-Coupler I, 27-Gear I, 28-High-speed shaft, 29-Gear III, 30-Overflow valve I, 31-Coupler II, 32-Two-position four-way solenoid directional valve, 33-Oil box, 34-Duplex gear pump, 35-Overflow valve II, 36 Right brake housing, 37-Right brake internal friction plate set, 38-Right brake external friction plate set, 39-Planetary gear carrier bearing, 40-Lubricating oil inlet pipeline, 41 Left brake pressure oil pipeline, and 42-Clutch pressure oil pipeline.
[00181 The present invention is further explained below in conjunction with the drawing.
[0019] As shown in Fig. 1, an anti-falling hoist transmission provided by the present invention includes a reel (3), a planetary gear train, a clutch, a right brake, a left brake, a motor 25, a high-speed shaft 28, a transmission gear mechanism, a duplex gear pump 34, an oil box 33 and a two-position four-way solenoid directional valve 32.
[0020] The reel 3 is mounted on a central shaft 1 by means of a reel bearing 2.
[00211 The planetary gear train includes an internal gear 5, a planetary gear 6, a planetary gear carrier 7 and a sun gear 4, the internal gear 5 is fixedly connected to an end part of the reel 3, the sun gear 4 is fixedly mounted on the central shaft 1, the planetary gear carrier 7 is mounted on the central shaft 1 by means of a planetary gear carrier bearing 39, the planetary gear 6 is mounted on the planetary gear carrier 7, and the planetary gear 6 is respectively meshed with the internal gear 5 and the sun gear 4.
[0022] The clutch includes a clutch housing 15, a clutch internal friction plate set 13, a clutch external friction plate set 14, a thrust bearing 12, a clutch piston 11 and a clutch oil cylinder 10, the clutch internal friction plate set 13 is connected to an extension shaft of the planetary gear carrier 7 by means of a spline, the clutch external friction plate set 14 is connected to the clutch housing 15 by means of a spline, one end of the clutch piston 11 extends into the clutch oil cylinder 10, and the thrust bearing 12 is mounted between the other end of the clutch piston 11 and a rightmost friction plate of the clutch internal friction plate set 13.
[0023] The right brake includes a right brake spring 8, a right brake housing 36, a right brake external friction plate set 38 and a right brake internal friction plate set 37, the right brake housing 36 is fixedly connected to a rack, the right brake external friction plate set 38 is connected to the right brake housing 36 by means of a spline, the right brake internal friction plate set 37 is connected to the extension shaft of the planetary gear carrier 7 by means of a spline, one end of the right brake spring 8 is fixedly connected to the clutch oil cylinder 10, and the other end of the right brake spring 8 is connected to a leftmost friction plate of the right brake external friction plate set 38.
[0024] The clutch piston 11 is fixedly connected to the leftmost friction plate of the right brake external friction plate set 38 by means of a connecting rod 9. When the clutch piston 11 is in an initial position, the clutch internal friction plate set 13 is separated from the clutch external friction plate set 14, the right brake external friction plate set 38 is fit with the right brake internal friction plate set 37, and the right brake spring 8 is in a natural state.
[0025] The left brake includes a left brake housing 24, a left brake internal friction plate set 23, a left brake external friction plate set 22, a left brake oil cylinder 19, a left brake piston 20 and a left brake spring 21, the left brake oil cylinder 19 and the left
brake housing 24 are fixedly connected to the rack, the left brake internal friction plate set 23 is connected to the central shaft 1 by means of a spline, the left brake external friction plate set 22 is connected to the left brake housing 24 by means of a spline, one end of the left brake piston 20 extends into the left brake oil cylinder 19, the other end of the left brake piston 20 is connected to a rightmost friction plate of the left brake external friction plate set 22, one end of the left brake spring 21 is connected to an internal toroidal surface of the left brake oil cylinder 19, and the other end of the left brake spring 21 is connected to an internal toroidal surface of the left brake piston 20.
[0026J The motor 25 is connected to the high-speed shaft 28 by means of a coupler I 26.
[0027] The transmission gear mechanism includes a gear I27, a gear III29, a gear IV 16 and a gear 1118, the gear I27 and the gearIII29 are fixedly mounted on the high speed shaft 28, the gear IV 16 is mounted on the extension shaft of the planetary gear carrier 7 by means of a bearing 17 of the gear IV, the gear IV 16 is meshed with the gear III29, the clutch housing 15 is fixedly connected to the gear IV 16, the gear 11 18 is fixedly mounted on the central shaft 1, and the gear 1118 is meshed with the gear I27.
[0028] An input shaft of the duplex gear pump 34 is connected to the high-speed shaft 28 by means of a coupler II31, an oil inlet of the duplex gear pump 34 is connected to the oil box 33, a front pump oil outlet of the duplex gear pump 34 is connected to lubricating oil inlets of the left brake, the clutch and the right brake through a lubricating oil inlet pipeline 40, the lubricating oil inlet pipeline 40 is provided with an overflow valve I30, the overflow valve I30 is connected to the oil box 33, lubricating oil is respectively added to friction plate sets of the clutch, the left brake and the right brake by means of the duplex gear pump 34, and oil pressure is adjusted by means of the overflow valve I30.
[0029j A rear pump oil outlet of the duplex gear pump 34 is connected to an oil inlet of the two-position four-way solenoid directional valve 32, a pipeline by which the rear pump oil outlet of the duplex gear pump 34 is connected to the oil inlet of the two position four-way solenoid directional valve 32 is provided with an overflow valve II , and the overflow valve II35 is connected to the oil box 33. A working port I of the two-position four-way solenoid directional valve 32 is connected to the left brake oil
cylinder 19 through a left brake pressure oil pipeline 41, a working port II of the two position four-way solenoid directional valve 32 is connected to the clutch oil cylinder through a clutch pressure oil pipeline 42, and an oil return port of the two-position four-way solenoid directional valve 32 is connected to the oil box 33.
[0030j When the hoist normally works, the motor 25 drives the high-speed shaft 28 by means of the coupler 126 and then drives the duplex gear pump 34 by means of the coupler 1131, the two-position four-way solenoid directional valve 32 is energized, the oil inlet of the two-position four-way solenoid directional valve 32 is conducted with the working port II, the working port I is conducted with the oil return port, pressure oil output by the rear pump oil outlet of the duplex gear pump 34 enters the clutch oil cylinder 10 through the clutch pressure oil pipeline 42, the pressure of the oil is adjusted by means of the overflow valve II35, the pressure oil pushes the clutch piston 11 out, the clutch piston 11 drives the clutch internal friction plate set 13 to be fit with the clutch external friction plate set 14, the clutch is engaged, the right brake external friction plate set 38 is separated from the right brake internal friction plate set 37, the right brake spring 8 is in a compressed state, and at this moment, both the left brake and the right brake are respectively in a non-braking state; the pressure oil output by a front pump of the duplex gear pump 34 enters the lubricating oil inlets of the clutch, the left brake and the right brake through the lubricating oil inlet pipeline 40 so as to lubricate and cool the friction plate sets of the clutch, the left brake and the right brake; the high-speed shaft 28 drives the gear 127 and then drives the gear1118, and the central shaft 1 rotates accordingly, thereby driving the sun gear 4 to rotate; and simultaneously, the high-speed shaft 28 drives the planetary gear carrier 7 to rotate by means of the gear III29, the gear IV 16 and the clutch, and the rotation direction of the planetary gear carrier 7 can be controlled by setting the transmission ratio of the gear III29 and the gear IV 16, thereby controlling the rotational speed of the internal gear 5,namely the reel 3.
[0031] In case of a sudden power failure accompanied by a brake failure, the reel 3 is driven to reversely rotate by a load by means of a steel wire rope, and the load falls; at this moment, the two-position four-way solenoid directional valve 32 is de-energized, the oil inlet of the two-position four-way solenoid directional valve 32 is conducted with the working port I, the working port II is conducted with the oil return port, the pressure of the clutch oil cylinder 10 is relieved, the clutch piston 11 is retracted, the clutch
disengages, the right brake spring 8 pushes the right brake external friction plate set 38 to be fit with the right brake internal friction plate set 37, the right brake is in a braking state, the planetary gear carrier 7 stops rotating, and the planetary gear train is converted into a fixed-axis gear train; at this moment, although the reel reversely rotates, the rotation direction of the high-speed shaft is not changed; and the duplex gear pump 34 is driven by the reel 3 and the fixed-axis gear train to continue to work, the pressure oil output by the rear pump oil outlet of the duplex gear pump 34 enters the left brake oil cylinder 19 through the left brake pressure oil pipeline 41, the pressure oil pushes the left brake piston 20 out, the left brake piston 20 pushes the left brake external friction plate set 22 to be fit with the left brake internal friction plate set 23, the left brake spring 21 is compressed, the left brake is in a braking state to stop the central shaft 1, thereby stopping the reel 3.
[0032] When the speed of the reel 3 is close to zero, the duplex gear pump 34 stops supplying the pressure oil, the left brake spring 21 is reset and pushes the left brake external friction plate set 22 to be separated from the left brake internal friction plate set 23, the left brake is released, the load continues to descend, and the duplex gear pump 34 starts working again, thereby stopping the reel 3 at a reduced speed.
[0033] The process is repeated continuously to enable the load to slowly land at a lower speed, thereby avoiding an accident caused by the fact that the load directly lands at a higher speed from a high place.
[0034] The above embodiments are merely preferred embodiments of the present invention. It should be noted that many improvements and modifications can also be made by those of ordinary skill in the art without departing from the principle of the present invention, and the improvements and modifications also belong to the protection scope of the present invention.
Claims (3)
1. An anti-falling hoist transmission, comprising a reel, a planetary gear train, a clutch, a right brake, a left brake, a motor, a high-speed shaft, a transmission gear mechanism, a duplex gear pump, an oil box and a two-position four-way solenoid directional valve, wherein
the reel is mounted on a central shaft by means of a reel bearing;
the planetary gear train comprises an internal gear, a planetary gear, a planetary gear carrier and a sun gear, the internal gear is fixedly connected to an end part of the reel, the sun gear is fixedly mounted on the central shaft, the planetary gear carrier is mounted on the central shaft by means of a planetary gear carrier bearing, the planetary gear is mounted on the planetary gear carrier, and the planetary gear is respectively meshed with the internal gear and the sun gear;
the clutch comprises a clutch housing, a clutch internal friction plate set, a clutch external friction plate set, a thrust bearing, a clutch piston and a clutch oil cylinder, the clutch internal friction plate set is connected to an extension shaft of the planetary gear carrier by means of a spline, the clutch external friction plate set is connected to the clutch housing by means of a spline, one end of the clutch piston extends into the clutch oil cylinder, and the thrust bearing is mounted between the other end of the clutch piston and the clutch internal friction plate set;
the right brake comprises a right brake spring, a right brake housing, a right brake external friction plate set and a right brake internal friction plate set, the right brake housing is fixedly connected to a rack, the right brake external friction plate set is connected to the right brake housing by means of a spline, the right brake internal friction plate set is connected to the extension shaft of the planetary gear carrier by means of a spline, one end of the right brake spring is fixedly connected to the clutch oil cylinder, and the other end of the right brake spring is connected to the right brake external friction plate set;
the clutch piston is fixedly connected to the right brake external friction plate set by means of a connecting rod;
the left brake comprises a left brake housing, a left brake internal friction plate set , a left brake external friction plate set, a left brake oil cylinder, a left brake piston and a left brake spring, the left brake oil cylinder and the left brake housing are fixedly connected to the rack, the left brake internal friction plate set is connected to the central shaft by means of a spline, the left brake external friction plate set is connected to the left brake housing by means of a spline, one end of the left brake piston extends into the left brake oil cylinder, the other end of the left brake piston is connected to the left brake external friction plate set, one end of the left brake spring is connected to the left brake oil cylinder, the other end of the left brake spring is connected to the left brake piston, and
the motor is connected to the high-speed shaft by means of a coupler I;
the transmission gear mechanism comprises a gear I, a gear III, a gear IV and a gear II, the gear I and the gear III are fixedly mounted on the high-speed shaft, the gear IV is mounted on the extension shaft of the planetary gear carrier by means of a bearing of the gear IV, the gear IV is meshed with the gear III, the clutch housing is fixedly connected to the gear IV, the gear II is fixedly mounted on the central shaft, and the gear II is meshed with the gear I;
an input shaft of the duplex gear pump is connected to the high-speed shaft by means of a coupler II, an oil inlet of the duplex gear pump is connected to the oil box, and a front pump oil outlet of the duplex gear pump is connected to the left brake, the clutch and the right brake through a lubricating oil inlet pipeline; and
a rear pump oil outlet of the duplex gear pump is connected to an oil inlet of the two position four-way solenoid directional valve, a working port I of the two-position four way solenoid directional valve is connected to the left brake oil cylinder by means of a left brake pressure oil pipeline, a working port II of the two-position four-way solenoid directional valve is connected to the clutch oil cylinder through a clutch pressure oil pipeline, and an oil return port of the two-position four-way solenoid directional valve is connected to the oil box.
2. The anti-falling hoist transmission according to claim 1, wherein the lubricating oil inlet pipeline is provided with an overflow valve I, and the overflow valve Iis connected to the oil box.
3. The anti-falling hoist transmission according to claim 1 or claim 2, wherein the pipeline by which the rear pump oil outlet of the duplex gear pump is connected to the oil inlet of the two-position four-way solenoid directional valve is provided with an overflow valve II, and the overflow valve II is connected to the oil box.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243651.9A CN106744146B (en) | 2016-12-29 | 2016-12-29 | A kind of elevator transmission device with anti-falling function |
| CN201611243651.9 | 2016-12-29 | ||
| PCT/CN2017/080268 WO2018120500A1 (en) | 2016-12-29 | 2017-04-12 | Anti-falling hoist transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2017386169A1 AU2017386169A1 (en) | 2019-06-20 |
| AU2017386169B2 true AU2017386169B2 (en) | 2021-01-28 |
Family
ID=58927900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2017386169A Ceased AU2017386169B2 (en) | 2016-12-29 | 2017-04-12 | Anti-falling hoist transmission |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN106744146B (en) |
| AU (1) | AU2017386169B2 (en) |
| RU (1) | RU2710461C1 (en) |
| WO (1) | WO2018120500A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217739B (en) * | 2019-07-11 | 2024-02-23 | 大连广的科技有限公司 | Automatic spacing positive pole lifting machine jack assembly of machinery |
| CN113800369B (en) * | 2021-09-27 | 2023-02-17 | 鸿羚鲲鲱(重庆)装配式建筑工程有限公司 | Driving device for vertical transport tool |
| CN114704563B (en) * | 2022-04-14 | 2023-05-23 | 一汽解放汽车有限公司 | Intermediate shaft brake and automobile |
| CN117023315B (en) * | 2023-10-09 | 2023-12-19 | 大汉科技股份有限公司 | Elevator anti-falling device for building construction |
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| US3497039A (en) * | 1967-04-28 | 1970-02-24 | Nordberg Manufacturing Co | Governor controlled emergency braking system |
| CN200978195Y (en) * | 2006-12-06 | 2007-11-21 | 王春明 | Wet friction plate clutch with idle hook lowering function of winding engine |
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| GB415191A (en) * | 1933-03-30 | 1934-08-23 | Henry Hewitt | Improvements in or relating to colliery and like "overwind" gear |
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| SU992379A1 (en) * | 1981-03-27 | 1983-01-30 | Всесоюзный Научно-Исследовательский Институт Соляной Промышленности | Hoist drive |
| CN2067693U (en) * | 1990-02-12 | 1990-12-19 | 陈道银 | Falling protector |
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| JP2007292253A (en) * | 2006-04-27 | 2007-11-08 | Mitsubishi Electric Corp | Braking device for hoist gear |
| CN201264856Y (en) * | 2008-09-10 | 2009-07-01 | 济南重工股份有限公司 | Slow hoister |
| CN201458619U (en) * | 2009-08-21 | 2010-05-12 | 中信重工机械股份有限公司 | Low-speed assistant hoister |
| CN102134031A (en) * | 2010-01-22 | 2011-07-27 | 北京太富力传动机器有限责任公司 | Novel blast furnace skip winch |
| CN203976186U (en) * | 2014-05-23 | 2014-12-03 | 苏州皇森机电科技有限公司 | Winding type elevator main |
| CN104088974A (en) * | 2014-06-25 | 2014-10-08 | 中国重型机械研究院股份公司 | Winch planetary transmission and speed regulation modes for same |
| CN105883650B (en) * | 2016-05-27 | 2018-03-23 | 张建 | A kind of assembly technology of endless rope speed regulating machine in mine winch |
-
2016
- 2016-12-29 CN CN201611243651.9A patent/CN106744146B/en not_active Expired - Fee Related
-
2017
- 2017-04-12 WO PCT/CN2017/080268 patent/WO2018120500A1/en active Application Filing
- 2017-04-12 AU AU2017386169A patent/AU2017386169B2/en not_active Ceased
- 2017-04-12 RU RU2019118130A patent/RU2710461C1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497039A (en) * | 1967-04-28 | 1970-02-24 | Nordberg Manufacturing Co | Governor controlled emergency braking system |
| CN200978195Y (en) * | 2006-12-06 | 2007-11-21 | 王春明 | Wet friction plate clutch with idle hook lowering function of winding engine |
| CN104291230A (en) * | 2014-09-06 | 2015-01-21 | 湖南创安防爆电器有限公司 | Novel mechanical speed-regulating mining hoisting winch electro-hydraulic integrated control device |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2710461C1 (en) | 2019-12-26 |
| CN106744146B (en) | 2018-10-16 |
| WO2018120500A1 (en) | 2018-07-05 |
| AU2017386169A1 (en) | 2019-06-20 |
| CN106744146A (en) | 2017-05-31 |
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