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Roadheader cutting arm

A cutting arm and roadheader technology, applied in the direction of cutting machinery, mechanical equipment, engine components, etc., can solve the problems of waste of human and material resources, shorten the use and maintenance cycle of roadheaders, and affect the production work of users, etc., to achieve Effective lubrication and cooling effect

Active Publication Date: 2015-12-09
SINOMACH CHANGLIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of lubricating oil lubrication, the metal ring of the floating seal is easy to burn
This shortens the use and maintenance cycle of the roadheader, brings about a serious waste of manpower and material resources, and at the same time affects the production work of the user

Method used

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  • Roadheader cutting arm
  • Roadheader cutting arm
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] See Figure 1 to Figure 3 , this embodiment includes a main shaft 1, a floating seal seat 6 arranged on the main shaft 1, a floating seal frame 7 and a cutting arm barrel 13, the floating sealing frame 7 and the cutting arm barrel 13 are fixedly connected by bolts, and the floating seal seat 6 is sleeved on the front end of the floating seal frame 7 and the cutting arm barrel 13, and is dynamically connected between the floating seal seat 6 and the floating seal frame 7. Floating seal frame 7 and cutting arm barrel 13 encircle main cavity E, and the main shaft position in the main cavity is provided with front bearing 10 and rear bearing 12, and front bearing 10, rear bearing 12 are respectively spherical roller bearing and double Cylindrical roller bearings. If the cavity of the front bearing 10 and the cavity of the rear bearing 12 are connected with the main cavity E, a front oil seal 9 is provided on the main shaft in the main cavity and on the front side of the fr...

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PUM

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Abstract

A heading machine cutting arm comprises a spindle, a floating sealing seat arranged on the spindle, a floating sealing frame and a cutting arm barrel. The floating sealing frame is fixedly connected with the cutting arm barrel, the floating sealing seat is movably connected with the floating sealing frame, a front bearing and a rear bearing are arranged on the part of the spindle located in a main cavity, a floating sealing element is arranged in a front oil chamber encircled between the floating sealing seat and the floating sealing frame, the floating sealing element is composed of a front element and a rear element, four oil passing holes allowing the front oil chamber and the main cavity to be communicated are formed in the floating sealing frame, the front portion and the rear portion of the under oil passing hole are a large straight hole and a small straight hole respectively, the large straight hole and the small straight hole are connected via a taper hole, a steel ball with the diameter larger than that of the small straight hole is arranged in the taper hole, and a strip-shaped retaining plate for preventing the steel ball from falling off the oil passing hole is arranged at an orifice of the large straight hole. Regardless of states of the cutting arm, the floating sealing element can be effectively lubricated and cooled.

Description

technical field [0001] The invention relates to a cutting arm of a roadheader. Background technique [0002] The Chinese patent authorization announcement number is CN202850993U (application number 201220470913.6) utility model patent discloses a roadheader cutting arm, including a cutting main shaft, a cutting arm barrel arranged on the outer periphery of the cutting main shaft, and a cutting arm barrel installed on the front end of the cutting arm barrel A floating seal, the front end of the cutting arm tube and the cutting main shaft is sleeved with a bearing I, and a bearing II and a water seal seat are installed between the cutting main shaft rear end and the cutting arm tube. The Chinese patent authorization announcement number is CN202851642U (application number 201220474098.0) utility model patent discloses a new type of roadheader cutting arm bearing structure including: floating seal seat, spherical roller bearing, main shaft, spherical roller thrust bearing, space...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/04F16N1/00F16J15/16E21C25/08
CPCE21C25/08F16J15/162F16K15/04F16N1/00F16N23/00
Inventor 张海涛廖晓明鞠涛郑文杰束尧舜
Owner SINOMACH CHANGLIN CO LTD