CN112555390B - Crane speed reducer vibration reduction structure and crane - Google Patents

Crane speed reducer vibration reduction structure and crane Download PDF

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Publication number
CN112555390B
CN112555390B CN202011469370.1A CN202011469370A CN112555390B CN 112555390 B CN112555390 B CN 112555390B CN 202011469370 A CN202011469370 A CN 202011469370A CN 112555390 B CN112555390 B CN 112555390B
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speed reducer
gear
primary
friction plate
wheel
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CN112555390A (en
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周清泉
苏世伟
李超
段毅
陈硕
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Wanxin Jinggong Hunan Co Ltd
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Wanxin Jinggong Hunan Co Ltd
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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
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • 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
    • 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
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

The invention discloses a vibration reduction structure of a speed reducer of a crane, which comprises the speed reducer, a brake integrated in the speed reducer and a vibration reduction base arranged at the bottom of the speed reducer. The brake and the speed reducer are integrated, so that the speed reducer integrates the functions of speed reduction and braking; according to the speed reducer, the wet friction plate type brake is used for replacing a traditional brake and the electronic button is used for replacing a push rod for control, so that the operation is more convenient and safer; the friction plate of the brake is made of carbon fiber materials instead of traditional semi-metal materials, and has the advantages of corrosion resistance and low friction loss; compared with the traditional speed reducer, the speed reducer has the advantages that the gear is subjected to accurate shape modification, so that the gear is meshed more tightly, and noise and vibration generated in the transmission process are smaller; the vibration of the speed reducer can be remarkably reduced, and the structural damage of the speed reducer caused by vibration is prevented; the vibration damping structure has the advantages of light weight and small volume.

Description

Crane speed reducer vibration reduction structure and crane
Technical Field
The invention relates to the technical field of crane vibration reduction structures, in particular to a crane speed reducer vibration reduction structure and a crane.
Background
The tower crane is the most common equipment on a construction site, is used for lifting raw materials for construction, and is indispensable equipment on the construction site. When the crane is in a construction site, the speed reducer in the hoisting mechanism of the traditional tower crane has poor vibration reduction effect, so that faults often occur. Therefore, it is desirable to provide a vibration reduction structure for a crane speed reducer.
Specifically, the vibration reduction structure of the existing crane speed reducer has the following defects: the existing speed reducer has poor damping and noise reduction effects, cannot reduce the vertical and horizontal vibration of the speed reducer, and causes the structure damage of the speed reducer caused by the vibration.
Disclosure of Invention
The invention aims to provide a vibration reduction structure of a crane speed reducer, which can solve the technical problems related to the background technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a vibration damping structure of a crane speed reducer comprises a speed reducer, a brake integrated in the speed reducer and a vibration damping base installed at the bottom of the speed reducer, wherein the speed reducer comprises a primary sun wheel, a primary planet carrier, a secondary sun wheel, a secondary planet carrier, a secondary planet wheel, an inner gear ring, a rotating shaft and a motor shaft, the brake comprises an outer pressing plate, an inner friction plate, an outer friction plate, an inner pressing plate, a piston, a spring, an oil cavity, a first oil pipe, a second oil pipe, an oil pressure loader and an electronic button, the vibration damping base comprises an upper supporting plate, a first spring locking block, a vibration damping spring, a second spring locking block, a lower supporting plate and a vibration damping cushion,
the primary planet gear is meshed with the primary sun gear, the primary planet carrier is coupled with the primary planet gear, the secondary sun gear is connected with the primary planet carrier, the secondary planet gear is meshed with the secondary sun gear, the secondary planet carrier is coupled with the secondary planet gear, the inner gear ring is sleeved outside the primary planet gear and the secondary planet gear and meshed with the primary planet gear and the secondary planet gear, one end of the rotating shaft is connected with the secondary planet carrier, and the other end of the rotating shaft is connected with the motor shaft; the first-stage planet wheel, the second-stage planet wheel, the first-stage sun wheel and the second-stage sun wheel are subjected to gear reshaping, and the reshaping amount formula of the gear reshaping is as follows:
Figure GDA0003087635350000021
wherein the unit of the repair amount is mum and Deltamr1Is the amount of repair, Δ, of the primary sun gear and the secondary sun gearmr2The repair quantity of the primary planet wheel and the secondary planet wheel is a belongs to [5,13 ]]，b∈[0,8]，TgIs the load torque, rbgThe base circle radius of the primary planet wheel and the secondary planet wheel, and B is the effective tooth width;
the brake is assembled in the second-stage planet carrier, an installation cavity is arranged in the second-stage planet carrier, the outer press plate, the inner friction plate, the outer friction plate, the inner press plate, the piston, the spring and the oil cavity are assembled in the installation cavity, the outer press plate is fixedly connected with the second-stage planet carrier and is positioned at one end of the inner friction plate, the outer friction plate is fixedly arranged on the rotating shaft, the outer friction plate and the inner friction plate are made of carbon fiber materials and are assembled in a matching way with the outer friction plate, the inner press plate is connected with one end, far away from the outer press plate, of the inner friction plate, the piston is connected with the inner press plate through the spring, the oil cavity is formed in the second-stage planet carrier, the piston is movably assembled in the oil cavity, the first oil pipe is embedded in the second-stage planet carrier and is communicated with the oil cavity, the second oil pipe is positioned outside the secondary planet carrier and communicated with the first oil pipe, the oil pressure loader is communicated with the second oil pipe, the electronic button is connected with the oil pressure loader and controls the pressure of hydraulic oil in the oil cavity by controlling the oil pressure loader, and then the movement of the piston and the spring is controlled;
the top surface of going up the backup pad with the bottom fixed connection of speed reducer, the bottom surface of going up the backup pad set firmly in the top surface of bottom suspension fagging, damping spring set up in go up the backup pad with between the bottom suspension fagging and through first spring latch segment with second spring latch segment respectively with go up the backup pad with bottom suspension fagging fixed connection, the damping pad set firmly in the bottom surface of bottom suspension fagging.
As an improvement of the invention: the lower extreme of going up the backup pad is equipped with the circular arc that is used for material saving and has the resistance to compression function and leads to the groove.
As an improvement of the invention: the damping cushion is a rubber damping cushion.
As an improvement of the invention: the gear surfaces of the primary planet gear, the secondary planet gear, the primary sun gear and the secondary sun gear are all subjected to high-temperature quenching and tempering treatment.
As an improvement of the invention: and right lubricating grease composite calcium sulfonate lubricating grease is smeared between the gears of the primary planet wheel and the primary sun wheel and between the gears of the secondary planet wheel and the secondary sun wheel for lubrication.
The invention also provides a crane, which comprises the vibration reduction structure of the crane speed reducer.
Compared with the prior art, the crane speed reducer vibration reduction structure provided by the invention has the following advantages:
1. the vibration reduction structure has the advantages of simple structure, convenient operation, simple and convenient installation, convenient maintenance, maintenance and the like;
2. the brake is integrated into the speed reducer, and the speed reducer is integrated into the winding drum, so that the speed reducer has more functions, more compact structure, lighter weight and volume and greatly reduced material cost;
3. the speed reducer of the vibration reduction structure adopts the planetary speed reducer to replace the traditional speed reducer, and has the advantages of stable speed reduction, low noise, large output torque and the like;
4. the brake in the vibration damping structure is safer and simpler to use; the wet friction plate type brake is used for replacing the traditional brake, so that the operation is more convenient and safer; the control brake is an electronic button to replace the traditional push rod, so that the operation is more convenient and light;
5. the brake in the vibration damping structure is a wet friction plate type brake, and the brake friction plate material is a carbon fiber material, so that the brake has the advantages of low abrasion and corrosion resistance compared with the traditional semi-metal brake plate;
6. the speed reducer in the vibration reduction structure has lower noise and vibration than the traditional speed reducer; the bottom of the speed reducer is connected with a damping base with a secondary damping pad function, so that vibration and noise can be well eliminated, and parts of the primary planet wheel, the secondary planet wheel, the primary sun wheel and the secondary sun wheel are subjected to accurate gear shaping, so that meshing among gears is more accurate, gear transmission noise is reduced, and high-temperature quenching and tempering treatment is performed on the surfaces of the gears, so that the gears are more wear-resistant;
7. compared with the traditional speed reducer, the speed reducer with the vibration reduction structure is more wear-resistant and has less noise; the novel lubricating grease composite calcium sulfonate lubricating grease is used for lubricating gears, so that the wear resistance of the gears is higher and the rust resistance is enhanced;
8. the vibration reduction structure can remarkably reduce the vertical and horizontal vibration of the speed reducer and prevent the speed reducer from causing structural damage due to vibration.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a structural diagram of a vibration reduction structure of a crane speed reducer provided by the invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a three-dimensional structure diagram of a vibration reduction structure of a crane speed reducer provided by the invention;
fig. 4 is a structural view of the vibration damping mount of the present invention.
In the figure: 1: a reel; 2: a primary sun gear; 3: a primary planet wheel; 4: a primary planet carrier; 5: a secondary sun gear; 6: a secondary planet carrier; 7: a secondary planet wheel; 8: an inner gear ring; 9: a rotating shaft; 10: an outer pressing plate; 11: an inner friction plate; 12: an outer friction plate; 13: an inner pressure plate; 14: a piston; 15: a spring; 16: an oil chamber; 17: a first oil pipe; 18: a second oil pipe; 19: a motor shaft; 20: a base; 201: an upper support plate; 202: a first spring locking block; 203: a damping spring; 204: a second spring locking block; 205: a lower support plate; 206: a rubber damping pad; 207: and an arc through groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-3, the invention provides a vibration damping structure of a crane speed reducer, which comprises a speed reducer (not numbered), a brake (not numbered) integrated in the speed reducer and a vibration damping base 20 installed at the bottom of the speed reducer, wherein the speed reducer comprises a primary sun gear 2, a primary planet gear 3, a primary planet carrier 4, a secondary sun gear 5, a secondary planet carrier 6, a secondary planet gear 7, an inner gear ring 8, a rotating shaft 9 and a motor shaft 19, and the brake comprises an outer pressing plate 10, an inner friction plate 11, an outer friction plate 12, an inner pressing plate 13, a piston 14, a spring 15, an oil cavity 16, a first oil pipe 17, a second oil pipe 18, an oil pressure loader and an electronic button. The braking and decelerating structure is matched with a winding drum 1, specifically, the winding drum 1 is connected with the inner gear ring 8, the inner gear ring 8 transmits torque to the winding drum 1, and the winding drum 1 rotates to wind steel wires.
The primary planet wheel 3 is connected with the primary sun wheel 2 in a meshed mode, the primary planet carrier 4 is connected with the primary planet wheel 3 in a shaft mode, the secondary sun wheel 5 is connected with the primary planet carrier 4, the secondary planet wheel 7 is connected with the secondary sun wheel 5 in a meshed mode, the secondary planet carrier 6 is connected with the secondary planet wheel 7 in a shaft mode, the inner gear ring 8 is sleeved on the primary planet wheel 3 and the secondary planet wheel 7, the primary planet wheel 3 is connected with the secondary planet wheel 7 in a meshed mode, one end of the rotating shaft 9 is connected with the secondary planet carrier 6, and the other end of the rotating shaft is connected with the motor shaft 19.
In the conventional speed reducer, the sun gear and the planet gear are not modified, and when the speed reducer works, the matching degree between the gears is not high, so that the abrasion between teeth is large, therefore, in order to overcome the technical defect, in the invention, the primary planet gear 3, the secondary planet gear 7, the primary sun gear 2 and the secondary sun gear 5 are all modified, and the modification amount formula of the gear modification is as follows:
Figure GDA0003087635350000051
wherein the unit of the repair amount is mum and Deltamr1Is the amount of repair, Δ, of the primary sun gear and the secondary sun gearmr2The repair quantity of the primary planet wheel and the secondary planet wheel is a belongs to [5,13 ]]，b∈[0,8]Taking an intermediate value in general; t isgIs the load torque, rbgThe radius of the base circle of the primary planet wheel and the secondary planet wheel, and B is the effective tooth width.
Like this, one-level planet wheel 3, secondary planet wheel 7, one-level sun gear 2 and secondary sun gear 5 have all carried out accurate gear and have repaiied the shape, compare in the action wheel of traditional speed reducer and all not carry out the gear from the driving wheel and repair the shape, this application can make the meshing between the gear more accurate, reduces gear drive's noise, the structural stability and the life of the improvement product that can show like this.
Moreover, the gear surfaces of the primary planet gear 3, the secondary planet gear 7, the primary sun gear 2 and the secondary sun gear 5 are all subjected to high-temperature quenching and tempering treatment, so that the wear resistance can be directly and obviously improved, and the technical problem that the wear resistance of the gear in the traditional speed reducing structure is poor is solved. Certainly, in order to further reduce the wear between gears, right grease complex calcium sulfonate grease is coated between the gears of the primary planet gear 3 and the primary sun gear 2 and between the gears of the secondary planet gear 7 and the secondary sun gear 5 for lubrication, so that the wear resistance of the gears is higher and the rust resistance is enhanced.
The brake is assembled in the second-stage planet carrier 6, an installation cavity (not numbered) is arranged in the second-stage planet carrier 6, the outer press plate 10, the inner friction plate 11, the outer friction plate 12, the inner press plate 13, the piston 14, the spring 15 and the oil chamber 16 are assembled in the installation cavity, the outer press plate 10 is fixedly connected with the second-stage planet carrier 6 and is positioned at one end of the inner friction plate 11, the outer friction plate 12 is fixedly arranged on the rotating shaft 9, the outer friction plate 12 and the inner friction plate 11 are made of carbon fiber materials, the inner friction plate 11 is matched and assembled with the outer friction plate 12, the inner press plate 13 is connected with one end, far away from the inner friction plate 11, of the outer press plate 10, the piston 14 is connected with the inner press plate 13 through the spring 15, the oil chamber 16 is formed in the second-stage planet carrier 6 and the piston 14 is movably assembled in the oil chamber 16, first oil pipe 17 inlays to be located in the second grade planet carrier 6 and with oil chamber 16 intercommunication, second oil pipe 18 is located the second grade planet carrier 6 outside and with first oil pipe 17 intercommunication, the oil pressure loader with second oil pipe 18 intercommunication, the electronic button with the oil pressure loader is connected and through control the oil pressure loader is in order to control the pressure size of hydraulic oil in the oil chamber 16, and then control piston 14 with the motion of spring 15. Compared with the traditional push rod control, the electronic push rod control mode is more convenient and light to operate.
It should be further noted that the brake is integrated into the secondary planet carrier 6 of the speed reducer, so that the crane speed reducer vibration damping structure has more functions, more compact structure, lighter weight and volume, and greatly reduced material cost. The brake is a wet friction plate type brake, and the brake friction plate material is a carbon fiber material, so that the brake has the advantages of low abrasion and corrosion resistance compared with a traditional semi-metal brake plate.
Referring to fig. 4 again, the vibration damping mount 20 has a good vibration damping and noise reducing effect, and specifically, the vibration damping mount 20 includes an upper supporting plate 201, a first spring locking block 202, a vibration damping spring 203, a second spring locking block 204, a lower supporting plate 205, and a vibration damping pad 206. Wherein, go up the top surface of backup pad 201 with the bottom fixed connection of speed reducer, the bottom surface of going up backup pad 201 set firmly in the top surface of bottom suspension fagging 205, damping spring 203 set up in go up backup pad 201 with between the bottom suspension fagging 205 and through first spring latch segment 202 with second spring latch segment 204 respectively with go up backup pad 201 with bottom suspension fagging 205 fixed connection, damping pad 206 set firmly in the bottom surface of bottom suspension fagging 205. Therefore, the damping base 20 is composed of a primary damping part and a secondary damping part, wherein the primary damping part mainly reduces the vertical and horizontal vibration of the speed reducer by four damping springs 203 connected with the upper supporting plate 201; the secondary shock absorption is mainly performed by the shock absorbing and damping pad 206 connected to the lower support plate 205.
It should be further noted that the damping pad 206 is a rubber damping pad and has a rectangular sheet shape, and the damping pad 206 is matched with the lower support plate 205 in shape.
The number of damping springs 203 is 4, and even branch is located go up the length direction's of backup pad 201 both ends.
The lower end of the upper supporting plate 201 is provided with an arc through groove 207 which is used for saving materials and has a compression-resistant function.
The invention also provides a crane, which comprises the vibration reduction structure of the crane speed reducer.
Compared with the prior art, the crane speed reducer vibration reduction structure provided by the invention has the following advantages:
1. the vibration reduction structure has the advantages of simple structure, convenient operation, simple and convenient installation, convenient maintenance, maintenance and the like;
2. the brake is integrated into the speed reducer, and the speed reducer is integrated into the winding drum, so that the speed reducer has more functions, more compact structure, lighter weight and volume and greatly reduced material cost;
3. the speed reducer of the vibration reduction structure adopts the planetary speed reducer to replace the traditional speed reducer, and has the advantages of stable speed reduction, low noise, large output torque and the like;
4. the brake in the vibration damping structure is safer and simpler to use; the wet friction plate type brake is used for replacing the traditional brake, so that the operation is more convenient and safer; the control brake is an electronic button to replace the traditional push rod, so that the operation is more convenient and light;
5. the brake in the vibration damping structure is a wet friction plate type brake, and the brake friction plate material is a carbon fiber material, so that the brake has the advantages of low abrasion and corrosion resistance compared with the traditional semi-metal brake plate;
6. the speed reducer in the vibration reduction structure has lower noise and vibration than the traditional speed reducer; the bottom of the speed reducer is connected with a damping base with a secondary damping pad function, so that vibration and noise can be well eliminated, and parts of the primary planet wheel, the secondary planet wheel, the primary sun wheel and the secondary sun wheel are subjected to accurate gear shaping, so that meshing among gears is more accurate, gear transmission noise is reduced, and high-temperature quenching and tempering treatment is performed on the surfaces of the gears, so that the gears are more wear-resistant;
7. compared with the traditional speed reducer, the speed reducer with the vibration reduction structure is more wear-resistant and has less noise; the novel lubricating grease composite calcium sulfonate lubricating grease is used for lubricating gears, so that the wear resistance of the gears is higher and the rust resistance is enhanced;
8. the vibration reduction structure can remarkably reduce the vertical and horizontal vibration of the speed reducer and prevent the speed reducer from causing structural damage due to vibration.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a hoist speed reducer damping structure, a serial communication port, including the speed reducer, integrate in stopper in the speed reducer and install in vibration damping mount (20) of speed reducer bottom, the speed reducer includes one-level sun gear (2), one-level planet wheel (3), one-level planet carrier (4), second grade sun gear (5), second grade planet carrier (6), second grade planet wheel (7), ring gear (8), axis of rotation (9) and motor shaft (19), the stopper includes outer clamp plate (10), inner friction piece (11), outer friction piece (12), inner pressure plate (13), piston (14), spring (15), oil pocket (16), first oil pipe (17), second oil pipe (18), oil pressure loader and electronic button, vibration damping mount (20) are including last backup pad (201), first spring latch segment (202), A shock-absorbing spring (203), a second spring locking block (204), a lower support plate (205) and a shock-absorbing damping pad (206), wherein,
the primary planet gear (3) is meshed with the primary sun gear (2), the primary planet carrier (4) is connected with the primary planet gear (3) in a shaft connection mode, the secondary sun gear (5) is connected with the primary planet carrier (4), the secondary planet gear (7) is meshed with the secondary sun gear (5), the secondary planet carrier (6) is connected with the secondary planet gear (7) in a shaft connection mode, the inner gear ring (8) is sleeved outside the primary planet gear (3) and the secondary planet gear (7) and meshed with the primary planet gear (3) and the secondary planet gear (7), one end of the rotating shaft (9) is connected with the secondary planet carrier (6), and the other end of the rotating shaft is connected with the motor shaft (19); the first-stage planet wheel (3), the second-stage planet wheel (7), the first-stage sun wheel (2) and the second-stage sun wheel (5) are subjected to gear shaping, and the shaping quantity formula of the gear shaping is as follows:
Figure FDA0003087635340000011
wherein the unit of the repair amount is mum and Deltamr1Is the amount of repair, Δ, of the primary sun gear and the secondary sun gearmr2The repair quantity of the primary planet wheel and the secondary planet wheel is a belongs to [5,13 ]]，b∈[0,8]，TgIs the load torque, rbgThe base circle radius of the primary planet wheel and the secondary planet wheel, and B is the effective tooth width;
the brake is assembled in the second-stage planet carrier (6), an installation cavity is arranged in the second-stage planet carrier (6), the outer press plate (10), the inner friction plate (11), the outer friction plate (12), the inner press plate (13), the piston (14), the spring (15) and the oil cavity (16) are assembled in the installation cavity, the outer press plate (10) is fixedly connected with the second-stage planet carrier (6) and positioned at one end of the inner friction plate (11), the outer friction plate (12) is fixedly arranged on the rotating shaft (9), the outer friction plate (12) and the inner friction plate (11) are made of carbon fiber materials, the inner friction plate (11) is matched and assembled with the outer friction plate (12), the inner press plate (13) is connected with the inner friction plate (11) and far away from one end of the outer press plate (10), the piston (14) is connected with the inner pressure plate (13) through the spring (15), the oil cavity (16) is formed in the secondary planet carrier (6), the piston (14) is movably assembled in the oil cavity (16), the first oil pipe (17) is embedded in the secondary planet carrier (6) and communicated with the oil cavity (16), the second oil pipe (18) is positioned outside the secondary planet carrier (6) and communicated with the first oil pipe (17), the oil pressure loader is communicated with the second oil pipe (18), the electronic button is connected with the oil pressure loader and controls the pressure of hydraulic oil in the oil cavity (16) through controlling the oil pressure loader, and further controls the movement of the piston (14) and the spring (15);
go up the top surface of backup pad (201) with the bottom fixed connection of speed reducer, the bottom surface of going up backup pad (201) set firmly in the top surface of bottom suspension fagging (205), damping spring (203) set up in go up backup pad (201) with between bottom suspension fagging (205) and through first spring latch segment (202) with second spring latch segment (204) respectively with go up backup pad (201) with bottom suspension fagging (205) fixed connection, damping pad (206) set firmly in the bottom surface of bottom suspension fagging (205).
2. The vibration reduction structure of the crane speed reducer as claimed in claim 1, wherein: the lower end of the upper supporting plate (201) is provided with an arc through groove (207) which is used for saving materials and has a pressure-resistant function.
3. The vibration reduction structure of the crane speed reducer according to claim 1 or 2, wherein: the shock absorption damping pad (206) is a rubber shock absorption damping pad.
4. The vibration reduction structure of the crane speed reducer as claimed in claim 1, wherein: the brake is a wet friction plate type brake.
5. The vibration reduction structure of the crane speed reducer as claimed in claim 1, wherein: the gear surfaces of the primary planet gear (3), the secondary planet gear (7), the primary sun gear (2) and the secondary sun gear (5) are all subjected to high-temperature quenching and tempering treatment.
6. The vibration reduction structure of the crane speed reducer as claimed in claim 1 or 5, wherein: and right lubricating grease composite calcium sulfonate lubricating grease is smeared between the gears of the primary planet wheel (3) and the primary sun wheel (2) and between the gears of the secondary planet wheel (7) and the secondary sun wheel (5) for lubrication.
7. A crane, characterized by comprising the crane speed reducer vibration reduction structure according to any one of claims 1 to 6.
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CN208535132U (en) * 2018-07-04 2019-02-22 浙江双联机械有限公司 A kind of damping base for gear reduction unit
CN110255407A (en) * 2019-07-01 2019-09-20 万鑫精工（湖南）有限公司 A kind of tower crane lifting mechanism
CN112555390A (en) * 2020-12-14 2021-03-26 万鑫精工(湖南)股份有限公司 Crane speed reducer vibration reduction structure and crane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2115327U (en) * 1992-02-27 1992-09-09 史超 Hoister with brake
JP2001227622A (en) * 2000-02-15 2001-08-24 Hitachi Ltd Gear device
CN208535132U (en) * 2018-07-04 2019-02-22 浙江双联机械有限公司 A kind of damping base for gear reduction unit
CN110255407A (en) * 2019-07-01 2019-09-20 万鑫精工（湖南）有限公司 A kind of tower crane lifting mechanism
CN112555390A (en) * 2020-12-14 2021-03-26 万鑫精工(湖南)股份有限公司 Crane speed reducer vibration reduction structure and crane

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