CN111410132A - Differential gear box for crane - Google Patents
Differential gear box for crane Download PDFInfo
- Publication number
- CN111410132A CN111410132A CN202010332679.XA CN202010332679A CN111410132A CN 111410132 A CN111410132 A CN 111410132A CN 202010332679 A CN202010332679 A CN 202010332679A CN 111410132 A CN111410132 A CN 111410132A
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- Prior art keywords
- gear
- differential gear
- planet
- gear box
- lifting
- 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.)
- Pending
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- 239000000969 carrier Substances 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910001339 C alloy Inorganic materials 0.000 claims description 3
- 238000005255 carburizing Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012761 high-performance material Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
- B66D1/225—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation variable ratio or reversing gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0125—Motor operated winches
- B66D2700/0141—Electrically actuated
-
- 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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
- F16H2048/106—Differential gearings with gears having orbital motion with orbital spur gears characterised by two sun gears
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Retarders (AREA)
Abstract
A hoisting differential gear box comprises a box body, two sets of planetary differential gear trains which are connected in parallel and have the same number of teeth, a plurality of gears and two input shafts; the two planetary differential gear trains are composed of a sun gear, an inner gear ring, a bearing, a planet carrier and a planet gear; the two planet carriers are supported and arranged on the box body; the inner gear ring is supported on the two planet carriers through bearings and can freely rotate around the planet carriers; the planet carrier is supported and installed on the box body and is used as the output of the gear box; the planet wheel is arranged in a pin hole on the planet carrier; the input shaft divides power to the two sun gears through the gear; the input shaft is meshed with the external teeth of the internal gear ring through a gear. The invention improves the reliability and maintainability of the equipment; the structure weight of the crane is reduced, the cost is reduced, the operation speed is improved, and the efficiency is high; the gear box has compact structure and small overall dimension, and saves the manufacturing cost; by selecting high-performance materials and adopting an advanced process, the reliability of the gear box is improved, the service life of the gear box is prolonged, the maintenance is simple, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of gear box design, in particular to a hoisting differential gear box.
Background
When the port portal crane works, the port portal crane moves in two directions of lifting and translation. In the traditional design, two independent transmission systems are respectively used, and motor gear boxes for lifting movement are arranged on the trolley; the running transmission system of the trolley is arranged on the trolley or in a machine room on the upright post, and the trolley is pulled to run through a steel wire rope. The lifting is main transmission, the load is large, a high-power motor and a large-size gear box are needed, the weight of the motor and the gear box is large, the running trolley and a main beam need to be strengthened, the weight of the whole structure is greatly increased, and the manufacturing cost is improved. Meanwhile, the weight of the trolley, the motor and the speed reducer is heavy, so that the trolley is not beneficial to fast running and the efficiency of loading and unloading operation is improved, and the energy consumption is high.
Disclosure of Invention
In order to improve the limitation of the transmission structure and meet the requirements of high efficiency, low consumption and high reliability of port loading and unloading, the invention provides a novel hoisting differential gear box.
A hoisting differential gear box comprises a box body (10), two sets of planetary differential gear trains which are connected in parallel and have the same number of teeth, a plurality of gears and two input shafts (1) and (6); the two planetary differential gear trains are respectively composed of a sun gear, an inner gear ring, a bearing, a planet carrier and a planet gear; the two planet carriers are supported and arranged on the box body (10); the inner gear ring (11) and the inner gear ring (18) are respectively supported on two planet carriers (13) and (17) through bearings (12) and (16) and can freely rotate around the planet carriers; the planet carriers (13) and (17) are supported and installed on the box body (10) and used as the output of the gear box; the planet wheels (14) and (15) are respectively arranged in pin holes on the planet carriers (13) and (17); the input shaft (6) divides power to two sun wheels (5) and (9) through a gear (4), a gear (7) and a gear (8), the rotation directions and the rotation speeds of the sun wheels and the input shaft are synchronous, and power is input into the planetary differential gear train; the input shaft (1) is meshed with the external teeth of the inner gear ring (11) and the inner gear ring (18) through the gear (2) and the gear shaft (3).
Furthermore, external teeth on the two inner gear rings are meshed, so that the rotating speeds of the inner gear rings are synchronous, and the rotating directions are opposite.
Furthermore, the hoisting differential gear box is arranged in the opening and closing speed reducer (20) and the lifting speed reducer (23), power is input through the opening and closing motor (19) and the lifting motor (24) through an input shaft, and the hoisting differential gear box outputs power to the opening and closing winding drum (21) and the lifting winding drum (22).
Furthermore, the hoisting differential gear box automatically distributes the power of the lifting and starting and stopping motor to the two output planet carriers by utilizing the power splitting and synthesizing function of the differential gear train, and synthesizes the power of the running motor (25) to the output planet carriers.
Furthermore, all gears of the hoisting differential gear box are subjected to carburizing and quenching treatment by low-carbon alloy steel, and are subjected to precision gear grinding processing with the precision of 6 grades.
Further, the hoisting differential gear box employs splash lubrication.
The invention has the beneficial effects that: 1. the transmission system of the crane is simplified, and the reliability and maintainability of the equipment are improved; 2. the structure weight of the crane is reduced, the cost is reduced, the operation speed is improved, and the efficiency is high; 3. the gear box has compact structure and small overall dimension, and saves the manufacturing cost; 4. by selecting high-performance materials and adopting an advanced process, the reliability of the gear box is improved, the service life of the gear box is prolonged, the maintenance is simple, and the service cost of the whole service life is reduced.
Drawings
Fig. 1 is a schematic structural view of a hoisting differential gear box according to the present invention.
Fig. 2 is a schematic view of the hoisting differential gear box applied to a speed reducer.
In the figure, 1-input shaft, 2-gear, 3-gear shaft, 4-gear, 5-sun gear, 6-input shaft, 7-gear, 8-gear, 9-sun gear, 10-box, 11-inner gear ring, 12-bearing, 13-planet carrier, 14-planet gear, 15-planet gear, 16-bearing, 17-planet carrier, 18-inner gear ring, 19-start and stop motor, 20-start and stop speed reducer, 21-start and stop drum, 22-lift drum, 23-lift speed reducer, 24-lift motor and 25-trolley running motor.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings in the specification.
A hoisting differential gear box mainly comprises: the planetary gear set comprises an input shaft 1, a gear 2, a gear shaft 3, a gear 4, a sun gear 5, an input shaft 6, a gear 7, a gear 8, a sun gear 9, a box 10, an inner gear ring 11, a bearing 12, a planet carrier 13, planet wheels 14, planet wheels 15, a bearing 16, a planet carrier 17 and an inner gear ring 18.
A hoisting differential gear box comprises a box body 10, two sets of planetary differential gear trains which are connected in parallel and have the same number of teeth, a plurality of gears and two input shafts 1 and 6.
The two planetary differential gear trains are composed of a sun gear, an inner gear ring, a bearing, a planet carrier and a planet gear.
The input shaft 6 divides power to the two sun gears 5 and 9 through the gear 4, the gear 7 and the gear 8, and inputs power to the planetary gear train for lifting or opening and closing; the input shaft 1 is meshed with the external teeth of the inner gear ring 11 and the inner gear ring 18 through the gear 2 and the gear shaft 3; the inner gear ring 11 and the inner gear ring 18 are supported on the planet carrier through bearings 12 and 16 and can freely rotate around the planet carrier; the planet carriers 13 and 17 are supported and mounted on the box body 10 by bearings, the output shaft ends are connected with the winding drum, and the planet wheels are mounted in pin holes in the planet carriers.
The hoisting differential gear box fully utilizes the power splitting and synthesizing function of the differential gear train, automatically distributes the power of the lifting and starting and stopping motor to the two output planet carriers 13 and 17, synthesizes the power of the running motor 25 to the output planet carriers 13 and 17, and has reliable work. All gears of the gear box are subjected to carburizing and quenching treatment by low-carbon alloy steel and are subjected to precise gear grinding, the precision is 6 grade, the size of the whole gear box is small, the efficiency is high, the noise is low, and the gear box is lubricated in a splashing mode.
The gearbox and spool arrangement is shown in fig. 2, where the function of opening and closing the spool 21 is: the grab bucket is opened and closed when rotating in the same direction and at the same speed, and the trolley is driven to move when the rotating speed or the rotating direction is different; the other pair of lifting drums 22 can lift and descend when rotating in the same direction and at the same speed, and the trolley is driven to move when the rotating speed or the rotating direction is different. The opening and closing are driven by a motor 19, the lifting is driven by a motor 24, and the trolley runs by a motor 25. The start-stop motor 19, the lifting motor 24 and the running motor 25 must be capable of freely starting and stopping without stopping when the gear box runs.
When the electric car works, if the input shaft 1 is braked, the input shaft 6 is driven by the motor to rotate, the two planetary gear trains cannot rotate because the inner gear rings 11 and 18, the power input by the input shaft 6 is decelerated by the two planetary gear trains respectively and then is output by the planetary gear frames 13 and 17 in the same direction and at the same speed to drive the winding drum, at the moment, the car is static, and the grab bucket is opened and closed or lifted; if the input shaft 6 is braked, the input shaft 1 works, power is transmitted to the inner gear rings 11 and 18 through the gears 2 and 3, the winding drum is driven by the planet carriers 13 and 17 in a reverse constant speed mode after the speed is reduced through the two planet gear trains, at the moment, the lifting, the opening and the closing are stopped, and the trolley runs; if the shaft 1 and the shaft 6 input power simultaneously, the sun gear and the inner gear ring of the two planetary gear trains are driving parts, the two planetary frames output power but are asynchronous, and the two winding drums have a rotation speed difference, so that the grab bucket can be lifted, opened, closed and lifted simultaneously.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (6)
1. The utility model provides a jack-up differential gear case, includes box (10), two sets of parallelly connected planetary differential gear trains that the number of teeth is the same, a plurality of gears and two input shafts (1), (6), its characterized in that: the two planetary differential gear trains are respectively composed of a sun gear, an inner gear ring, a bearing, a planet carrier and a planet gear; the two planet carriers are supported and arranged on the box body (10); the inner gear ring (11) and the inner gear ring (18) are respectively supported on two planet carriers (13) and (17) through bearings (12) and (16) and can freely rotate around the planet carriers; the planet carriers (13) and (17) are supported and installed on the box body (10) and used as the output of the gear box; the planet wheels (14) and (15) are respectively arranged in pin holes on the planet carriers (13) and (17); the input shaft (6) divides power to two sun wheels (5) and (9) through a gear (4), a gear (7) and a gear (8), the rotation directions and the rotation speeds of the sun wheels and the input shaft are synchronous, and power is input into the planetary differential gear train; the input shaft (1) is meshed with the external teeth of the inner gear ring (11) and the inner gear ring (18) through the gear (2) and the gear shaft (3).
2. The lifting differential gear box according to claim 1, wherein: the outer teeth on the two inner gear rings are meshed with each other, so that the inner gear rings rotate synchronously in opposite directions.
3. The lifting differential gear box according to claim 1, wherein: the hoisting differential gear box is arranged in the opening and closing speed reducer (20) and the lifting speed reducer (23), power is input through the opening and closing motor (19) and the lifting motor (24) through an input shaft, and the hoisting differential gear box outputs power to the opening and closing winding drum (21) and the lifting winding drum (22).
4. The lifting differential gear box according to claim 1, wherein: the hoisting differential gear box automatically distributes the power of the lifting and starting and stopping motor to the two output planet carriers by utilizing the power splitting and synthesizing function of the differential gear train, and synthesizes the power of the running motor (25) to the output planet carriers.
5. The lifting differential gear box according to claim 1, wherein: all gears of the hoisting differential gear box are subjected to low-carbon alloy steel carburizing and quenching treatment and are subjected to precise gear grinding processing, and the precision is 6-grade.
6. The lifting differential gear box according to claim 1, wherein: the hoisting differential gear box adopts splash type lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332679.XA CN111410132A (en) | 2020-04-24 | 2020-04-24 | Differential gear box for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332679.XA CN111410132A (en) | 2020-04-24 | 2020-04-24 | Differential gear box for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111410132A true CN111410132A (en) | 2020-07-14 |
Family
ID=71489952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010332679.XA Pending CN111410132A (en) | 2020-04-24 | 2020-04-24 | Differential gear box for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111410132A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543690A (en) * | 1967-08-15 | 1970-12-01 | Heywood & Co S H | Wheel or drum drives |
| FR2333171A1 (en) * | 1975-11-28 | 1977-06-24 | Inventio Ag | MULTI-REPORTING PLANET TRAIN |
| CN1785784A (en) * | 2005-07-22 | 2006-06-14 | 上海振华港口机械（集团）股份有限公司 | Differential driving mechanism of container crane lifting and trolley compound motion |
| CN101077760A (en) * | 2007-06-05 | 2007-11-28 | 唐志明 | Soft starting hoisting gear for two stage planetary gear train transmission |
| CN201851601U (en) * | 2010-11-19 | 2011-06-01 | 太原重工股份有限公司 | Dual-planetary main hoist gearbox of ladle crane |
| CN102162069A (en) * | 2010-02-23 | 2011-08-24 | 宝山钢铁股份有限公司 | Flying-shear main-transmission gearwheel steel and preparation method thereof |
| CN202508775U (en) * | 2012-03-29 | 2012-10-31 | 太原重工股份有限公司 | Double dynamical speed reducer achieving hand operation and electromotion |
| CN105805237A (en) * | 2016-04-15 | 2016-07-27 | 南京高精齿轮集团有限公司 | Retarding mechanism of crane |
| CN205446663U (en) * | 2016-03-31 | 2016-08-10 | 重庆宗申发动机制造有限公司 | Splash system lubrication reducing gear box |
| CN212769562U (en) * | 2020-04-24 | 2021-03-23 | 江苏国茂减速机股份有限公司 | Differential gear box for crane |
-
2020
- 2020-04-24 CN CN202010332679.XA patent/CN111410132A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543690A (en) * | 1967-08-15 | 1970-12-01 | Heywood & Co S H | Wheel or drum drives |
| FR2333171A1 (en) * | 1975-11-28 | 1977-06-24 | Inventio Ag | MULTI-REPORTING PLANET TRAIN |
| CN1785784A (en) * | 2005-07-22 | 2006-06-14 | 上海振华港口机械（集团）股份有限公司 | Differential driving mechanism of container crane lifting and trolley compound motion |
| CN101077760A (en) * | 2007-06-05 | 2007-11-28 | 唐志明 | Soft starting hoisting gear for two stage planetary gear train transmission |
| CN102162069A (en) * | 2010-02-23 | 2011-08-24 | 宝山钢铁股份有限公司 | Flying-shear main-transmission gearwheel steel and preparation method thereof |
| CN201851601U (en) * | 2010-11-19 | 2011-06-01 | 太原重工股份有限公司 | Dual-planetary main hoist gearbox of ladle crane |
| CN202508775U (en) * | 2012-03-29 | 2012-10-31 | 太原重工股份有限公司 | Double dynamical speed reducer achieving hand operation and electromotion |
| CN205446663U (en) * | 2016-03-31 | 2016-08-10 | 重庆宗申发动机制造有限公司 | Splash system lubrication reducing gear box |
| CN105805237A (en) * | 2016-04-15 | 2016-07-27 | 南京高精齿轮集团有限公司 | Retarding mechanism of crane |
| CN212769562U (en) * | 2020-04-24 | 2021-03-23 | 江苏国茂减速机股份有限公司 | Differential gear box for crane |
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