CN214879788U - Automobile crane rotating system - Google Patents

Automobile crane rotating system Download PDF

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Publication number
CN214879788U
CN214879788U CN202121486746.XU CN202121486746U CN214879788U CN 214879788 U CN214879788 U CN 214879788U CN 202121486746 U CN202121486746 U CN 202121486746U CN 214879788 U CN214879788 U CN 214879788U
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CN
China
Prior art keywords
worm
gear
bevel gear
pinion
driven bevel
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Active
Application number
CN202121486746.XU
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Chinese (zh)
Inventor
宋雅培
金明
高佳佳
张鹏飞
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Anhui Liugong Crane Co Ltd
Original Assignee
Anhui Liugong Crane Co Ltd
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Application filed by Anhui Liugong Crane Co Ltd filed Critical Anhui Liugong Crane Co Ltd
Priority to CN202121486746.XU priority Critical patent/CN214879788U/en
Application granted granted Critical
Publication of CN214879788U publication Critical patent/CN214879788U/en
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Abstract

The utility model relates to a mobile crane rotation system, including the swing motor, install the initiative bevel gear in the swing motor below, the driven bevel gear who sets up in initiative bevel gear one side and link to each other with the initiative bevel gear meshing, the worm that sets up in driven bevel gear one side and links to each other with driven bevel gear is fixed, set up in the worm below and the worm wheel that links to each other with the worm meshing, the pinion that sets up in the worm wheel below and set up in pinion one side and the gear wheel that links to each other with the pinion meshing, this gear wheel is the gyration of mobile crane revolving stage and supports promptly. The utility model discloses a worm gear combination and gear engagement combination transmission, worm gear have auto-lock nature, can avoid rocking and because the gyration that the speed reducer output gear leads to with slewing bearing clearance adjustment is out of position and build the gyration swift current car that pressure is not too late often to be drawn and lead to by the inertial force of load because hydraulic motor. And the worm gear and worm transmission is continuous transmission, so that the problem of unstable transmission can be avoided.

Description

Automobile crane rotating system
Technical Field
The utility model relates to a mobile crane technical field, concretely relates to mobile crane rotating system.
Background
The automobile crane is one of indispensable large-scale equipment in each item of infrastructure construction. During hoisting operation, the load is hoisted by the lifting hook and conveyed to a specified position through the resultant force of the rotary system and the hoisting arm. At present, the rotary system of the domestic automobile crane almost finishes the rotary operation of the crane by meshing the external gears.
The existing crane adopts a hydraulic motor to drive a speed reducer, and an output gear of the speed reducer is meshed with a slewing bearing to complete the slewing action. Such a rotation method has the following problems: when the rotation needs to be stopped, the braking of the speed reducer is controlled through damping, damping parameters need to be tested continuously, even one vehicle needs to be specially adjusted or matched with one damping, otherwise, the problems of rotation clamping stagnation, shaking, vehicle sliding and the like can occur. The rotation is completed through gear engagement, the pressure build-up of the hydraulic motor needs time, and when the two cranes assist in lifting the load, the crane with fast pressure build-up pulls the crane with slow pressure build-up easily, so that the problem of unstable load occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mobile crane rotation system, this system can solve not enough among the prior art, can effectively reduce rotation system cost and fault rate, improves the stability of gyration.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an automobile crane rotating system, includes the slewing motor, install the initiative bevel gear in the slewing motor below, set up in initiative bevel gear one side and with the driven bevel gear meshing continuous driven bevel gear, set up in driven bevel gear one side and with the fixed worm that links to each other of driven bevel gear, set up in the worm below and with the worm meshing continuous worm wheel, set up the pinion of worm wheel below and set up in pinion one side and with the gear wheel that the pinion meshing links to each other.
Furthermore, a rotary speed reducer is arranged between the rotary motor and the drive bevel gear, the output end of the rotary motor is connected with the input end of the rotary speed reducer, and the output end of the rotary speed reducer is connected with the drive bevel gear. The rotary motor transmits torque and rotating speed to the rotary speed reducer.
Further, the worm wheel is coaxially and fixedly connected with the pinion.
Furthermore, the bull gear is the gyration of mobile crane revolving stage and supports.
According to the above technical scheme, the utility model discloses a worm gear combination and gear engagement combination transmission, worm gear have auto-lock nature, can avoid because the gyration that speed reducer output gear and slewing bearing clearance adjustment out of position lead to rocks and because the gyration back swift current that hydraulic motor decompression did not reach and lead to often. And the worm gear and worm transmission is continuous transmission, so that the problem of unstable transmission can be avoided. Rotary system can effectual solution hoist gyration jamming, swift current car, shake the scheduling problem, rotary system no longer be the game of simple resistance and power, but effectively avoid gyration shake and swift current car through the continuous transmission nature and the auto-lock nature that utilize worm gear meshing to have, improve the stability of gyration.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein:
1. the device comprises a rotary motor 2, a rotary speed reducer 3, a driving bevel gear 4, a driven bevel gear 5, a worm 6, a worm gear 7, a pinion 8 and a gearwheel.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the slewing system of the truck crane includes a slewing motor 1, a drive bevel gear 3 installed below the slewing motor 1, a driven bevel gear 4 disposed at one side of the drive bevel gear 3 and engaged with the drive bevel gear 3, a worm 5 disposed at one side of the driven bevel gear 4 and fixedly connected with the driven bevel gear 4, a worm wheel 6 disposed at one side of the worm 5 and engaged with the worm 5, a pinion 7 disposed below the worm wheel 6, and a bull gear 8 disposed at one side of the pinion 7 and engaged with the pinion 7. The driving bevel gear 3 and the driven bevel gear 4 can change the transmission direction. The bull gear is the slewing bearing of mobile crane revolving stage promptly.
Further, a rotary speed reducer 2 is arranged between the rotary motor 1 and the drive bevel gear 3, the output end of the rotary motor 1 is connected with the input end of the rotary speed reducer 2, and the output end of the rotary speed reducer 2 is connected with the drive bevel gear 3. The rotary motor 1 transmits torque and rotation speed to the rotary speed reducer 2. The rotary speed reducer can increase torque and reduce rotary speed.
Further, the worm wheel 6 is coaxially fixedly connected with the pinion 7.
The utility model discloses a theory of operation does:
the rotary motor 1 drives the rotary speed reducer 2, and the rotary speed reducer 2 outputs torque and rotation speed through the driving bevel gear 3. The driving bevel gear 3 drives the driven bevel gear 4 to rotate, the driven bevel gear 4 drives the worm 5 to rotate, and the worm 5 is meshed with the worm wheel 6, so that the worm wheel 6 rotates under the driving of the worm 5. A small gear 7 coaxially and fixedly connected with the worm wheel 6 rotates along with the worm wheel 6, and a large gear 8 meshed with the small gear 7 rotates along with the small gear 7 to complete the rotation action. When the vehicle needs to stop, the braking of the rotation action is finished through the braking port of the rotation speed reducer 2. The continuous transmission of the rotation action is completed through the meshing transmission of the worm 5 and the worm wheel 6, and meanwhile, the rotation back-and-forth shaking and vehicle sliding can be avoided due to the self-locking type of the worm and gear transmission, so that the rotation stability is improved.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims (4)

1. The automobile crane rotating system is characterized in that: the automatic transmission mechanism comprises a rotary motor, a driving bevel gear installed below the rotary motor, a driven bevel gear arranged on one side of the driving bevel gear and meshed with the driving bevel gear to be connected, a worm arranged on one side of the driven bevel gear and fixedly connected with the driven bevel gear, a worm wheel arranged below the worm and meshed with the worm to be connected, a small gear arranged below the worm wheel, and a large gear arranged on one side of the small gear and meshed with the small gear to be connected.
2. The mobile crane slewing system according to claim 1, wherein: a rotary speed reducer is arranged between the rotary motor and the drive bevel gear, the output end of the rotary motor is connected with the input end of the rotary speed reducer, and the output end of the rotary speed reducer is connected with the drive bevel gear.
3. The mobile crane slewing system according to claim 1, wherein: the worm wheel is coaxially and fixedly connected with the pinion.
4. The mobile crane slewing system according to claim 1, wherein: the bull gear is the slewing bearing of mobile crane revolving stage.
CN202121486746.XU 2021-07-01 2021-07-01 Automobile crane rotating system Active CN214879788U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121486746.XU CN214879788U (en) 2021-07-01 2021-07-01 Automobile crane rotating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121486746.XU CN214879788U (en) 2021-07-01 2021-07-01 Automobile crane rotating system

Publications (1)

Publication Number Publication Date
CN214879788U true CN214879788U (en) 2021-11-26

Family

ID=78929319

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121486746.XU Active CN214879788U (en) 2021-07-01 2021-07-01 Automobile crane rotating system

Country Status (1)

Country Link
CN (1) CN214879788U (en)

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