bq

huaxia
搜索
确认
取消
language
中国
韩国
韩国
韩国
韩国
韩国
huaxia

Maintenance of slewing bearing device of tower crane

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2020-01-07 08:13
  • Views:

(Summary description)  (1) The mounting support of the slewing bearing (the seat supporting the bottom surface of the ring gear and the seat placed on the upper surface of the inner ring) must have sufficient rigidity, and the mounting surface should be flat. Before assembling the slewing bearing, the bearing should be stress-relieved to reduce the deformation of the slewing bearing. The contact surface of the bearing and the slewing bearing must be cleaned up during assembly.   (2) Pay attention to the change of noise and the change of rotation resistance torque during use, and disassemble and inspect if there is any abnormal phenomenon.   (3) The slewing bearing must be lifted or stored horizontally. Do not lift or store it vertically to avoid deformation.   (4) Before the bolts are fully tightened, the gear meshing inspection should be performed, and the meshing condition should meet the requirements of gear accuracy: that is, the contact spots distributed on the tooth surface of the gear pair after running under slight braking are in the height direction of the gear teeth Not less than 25%, not less than 30% in the length direction of gear teeth.   (5) The debris should be removed once for 10 shifts of tooth surface work, and re-applied with grease.   (6) In order to ensure the reliability of the bolt work and avoid the insufficient preload of the bolt, the preload torque of the bolt should be checked separately after the first 100 hours and 500 hours of the slewing bearing work. The pre-tightening torque should be checked every 1000 hours thereafter.   (7) High-strength bolts and nuts are used for bolts and nuts connected to the slewing bearing; double nuts are used for fastening and anti-loosening.   (8) When tightening the nut, the thread of the bolt and the end surface of the nut should be coated with lubricating oil, and should be tightened with a torque wrench symmetrically and evenly in the circumferential direction multiple times. During the last tightening, the pre-tightening torque on each bolt should be approximately uniform.   (9) Four oil cups are evenly distributed on the upper surface of the slewing ring gear aligned with the raceway, thereby adding grease to the raceway. Under normal circumstances, the slewing bearing is lubricated once every 50 hours. Each time you add oil, you must add enough oil until grease leaks from the seal.

Maintenance of slewing bearing device of tower crane

(Summary description)  (1) The mounting support of the slewing bearing (the seat supporting the bottom surface of the ring gear and the seat placed on the upper surface of the inner ring) must have sufficient rigidity, and the mounting surface should be flat. Before assembling the slewing bearing, the bearing should be stress-relieved to reduce the deformation of the slewing bearing. The contact surface of the bearing and the slewing bearing must be cleaned up during assembly.

  (2) Pay attention to the change of noise and the change of rotation resistance torque during use, and disassemble and inspect if there is any abnormal phenomenon.

  (3) The slewing bearing must be lifted or stored horizontally. Do not lift or store it vertically to avoid deformation.

  (4) Before the bolts are fully tightened, the gear meshing inspection should be performed, and the meshing condition should meet the requirements of gear accuracy: that is, the contact spots distributed on the tooth surface of the gear pair after running under slight braking are in the height direction of the gear teeth Not less than 25%, not less than 30% in the length direction of gear teeth.

  (5) The debris should be removed once for 10 shifts of tooth surface work, and re-applied with grease.

  (6) In order to ensure the reliability of the bolt work and avoid the insufficient preload of the bolt, the preload torque of the bolt should be checked separately after the first 100 hours and 500 hours of the slewing bearing work. The pre-tightening torque should be checked every 1000 hours thereafter.

  (7) High-strength bolts and nuts are used for bolts and nuts connected to the slewing bearing; double nuts are used for fastening and anti-loosening.

  (8) When tightening the nut, the thread of the bolt and the end surface of the nut should be coated with lubricating oil, and should be tightened with a torque wrench symmetrically and evenly in the circumferential direction multiple times. During the last tightening, the pre-tightening torque on each bolt should be approximately uniform.

  (9) Four oil cups are evenly distributed on the upper surface of the slewing ring gear aligned with the raceway, thereby adding grease to the raceway. Under normal circumstances, the slewing bearing is lubricated once every 50 hours. Each time you add oil, you must add enough oil until grease leaks from the seal.

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2020-01-07 08:13
  • Views:
Information

  (1) The mounting support of the slewing bearing (the seat supporting the bottom surface of the ring gear and the seat placed on the upper surface of the inner ring) must have sufficient rigidity, and the mounting surface should be flat. Before assembling the slewing bearing, the bearing should be stress-relieved to reduce the deformation of the slewing bearing. The contact surface of the bearing and the slewing bearing must be cleaned up during assembly.

  (2) Pay attention to the change of noise and the change of rotation resistance torque during use, and disassemble and inspect if there is any abnormal phenomenon.

  (3) The slewing bearing must be lifted or stored horizontally. Do not lift or store it vertically to avoid deformation.

  (4) Before the bolts are fully tightened, the gear meshing inspection should be performed, and the meshing condition should meet the requirements of gear accuracy: that is, the contact spots distributed on the tooth surface of the gear pair after running under slight braking are in the height direction of the gear teeth Not less than 25%, not less than 30% in the length direction of gear teeth.

  (5) The debris should be removed once for 10 shifts of tooth surface work, and re-applied with grease.

  (6) In order to ensure the reliability of the bolt work and avoid the insufficient preload of the bolt, the preload torque of the bolt should be checked separately after the first 100 hours and 500 hours of the slewing bearing work. The pre-tightening torque should be checked every 1000 hours thereafter.

  (7) High-strength bolts and nuts are used for bolts and nuts connected to the slewing bearing; double nuts are used for fastening and anti-loosening.

  (8) When tightening the nut, the thread of the bolt and the end surface of the nut should be coated with lubricating oil, and should be tightened with a torque wrench symmetrically and evenly in the circumferential direction multiple times. During the last tightening, the pre-tightening torque on each bolt should be approximately uniform.

  (9) Four oil cups are evenly distributed on the upper surface of the slewing ring gear aligned with the raceway, thereby adding grease to the raceway. Under normal circumstances, the slewing bearing is lubricated once every 50 hours. Each time you add oil, you must add enough oil until grease leaks from the seal.

Scan the QR code to read on your phone

Industry Dynamic

There is currently no information to display
Please add data record on website background.

Hot Products

Shandong Huaxia tower crane

Shandong Huaxia tower crane

Shandong Huaxia tower crane, registered and established in Shandong / Weihai City in 1985, is now relocated to Linyi. Our company operates tower cranes in the mode of production and processing; Piling machine; Mixing station; Construction elevator; Tower crane, the processing method is incoming processing, the processing technology is machining, other mechanical hardware technology, assembly, and the service field is machinery; Hardware has more than 1000 employees and a registered capital of 90 million yuan. If you are interested in our products, technology or services, you are welcome to call or come to consult at any time.
Linyi Huaxia heavy industry

Linyi Huaxia heavy industry

Linyi Huaxia heavy industry mainly deals in Huaxia tower crane, QTd, QTP, QTZ, tower crane, elevator, tower crane, material machine and other products. Linyi Huaxia heavy industry of company independently develops hydraulic jack up tower crane, flat head tower crane, tower crane, QTd and other products with 8 technical patents. A good product (QTd tower crane, QTP elevator,Linyi Huaxia heavy industry ) is like a perfect movement, which requires our wholehearted investment, From raw material purchase to semi-finished product processing and later quality inspection All of them embody our painstaking efforts.
Huaxia tower crane

Huaxia tower crane

The special page of Huaxia tower crane provides you with the product information of various crane types and accessories of Huaxia tower crane, including the price, pictures and other information of Huaxia tower crane, which helps you choose better Huaxia tower crane products. Huaxia tower crane provides enterprises with product information of various crane types and applicable objects of accessories, including Huaxia tower crane price, pictures and other information, here to help you choose better Huaxia tower crane products.
5015 tower crane

5015 tower crane

5015 Tower crane is the most commonly used lifting equipment on construction sites. The extension (height) of each section (hereinafter referred to as "standard section"). It is used to lift construction raw materials such as steel bars, wooden beams, concrete and steel pipes. The function of the 5015 Tower crane is to bear the upper load transmitted by the jib pull rope and the balance arm pull rope, and directly transmit 5015 Tower crane to the tower structure through the rotary tower, turntable, bearing seat and other structural components. 5015 Tower crane ;50 represents the boom length of 50 meters, and 15 represents the maximum lifting capacity of the boom tip of 1.5 tons.
QTZ250 (7030) tower crane

QTZ250 (7030) tower crane

Model QTZ250 (7030) tower crane with lifting torque of 250tm.Tower crane: the boom form of tower crane is divided into horizontal type and pressure bar type. When the boom is horizontal, the truck runs along the horizontal boom and the luffing motion is balanced. The boom is long, but the boom weight is large. When the boom is of compression bar type, the luffing mechanism leads the boom to pitch luffing. The luffing motion is not as stable as the horizontal type, but its self weight is small. The lifting capacity of the tower crane varies with the amplitude. The product of lifting capacity and amplitude is called load moment, which is the main technical parameter of this crane. Through the slewing mechanism and slewing ring, the tower crane has large lifting height and large inertia mass of slewing and walking, so it needs to have good speed regulation performance. In particular, the lifting mechanism is required to be fast under light load, slow under heavy load and micro motion in place. Generally, in addition to resistance speed regulation, eddy current brake, frequency modulation, pole changing, thyristor and electromechanical combination are often used for speed regulation.
QTZ40 tower crane

QTZ40 tower crane

QTZ40 tower crane is a new type of tower crane for construction. The machine is in the form of horizontal boom, trolley luffing and upward rotary hydraulic jacking; The working range is 45m-2m; The lifting capacity is 4T at quadruple rate and 2T at double rate; The rated lifting moment is 400kN m; The lifting height is 35m for independent use and 100m for attached use.     

Contact Us

Outgoing telephone:0539-6015699/0631-5982999

Huaxia Heavy Industry:+86-0539-6015699(Domestic)

After-sales service:+86-0631-5980999/5982299

Hotline Fax:

+86-0631-5987519(Domestic)

+86-0631-5999076(Foreign)

Corporate Mailbox:huaxia12007@163.com

Company Address:Huaxia Road, Weihai, Shandong Province

Linyi huaxia:0086-0539-6015699

Technical consulting:0086-0631-5986868

Accessories sales:0086-0631-5999018

Anti-fake Supervision:0086-0631-5993999

Zip Code:264205

huaxia

follow Wechat

huaxia

本网站支持IPv6访问 Shandong Huaxia Group Co.,LTD

Tel

Weixin

TOP