Cutting head structure of tunneling machine
A technology of cutting head and roadheader, which is applied in the direction of cutting machinery, earthwork drilling and mining, etc. It can solve the problems of difficult maintenance and wear of cutting head of roadheader, and achieve easy maintenance, improvement of serious wear of bolts, and improvement of connection strength Effect
Inactive Publication Date: 2009-09-09
SANY HEAVY EQUIP CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a cutting head structure for a roadheader, which solves the problem that the cutting head of an existing roadheader is severely worn during the cutting process (especially cutting half coal rock and whole rock) or the wearing parts are seriously damaged. Difficult to maintain and replace after wear and tear
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[0021] The cutting head structure for the roadheader of the present invention mainly includes a detachable wear-resistant plate 1, a packing seat 3, a cutting head 4, a pick 6, a pick seat 7, a connecting plate 8, a detachable material guide plate 9, and the like. in,
[0022] Such as Figure 1-Figure 2 As shown, the cutting head 4 and the packing seat 3 of the roadheader are connected at the rear end of the packing seat 3 through 8 bolts I2. The grinding plate 1 is an arc-shaped plate, and four sections of the same detachable wear-resistant plate 1 are assembled into a circle structure. Then 16 bolts II 5 are used to connect the cutting head 4, the packing base 3 and the detachable wear plate 1. When the detachable wear-resistant plate 1 is worn out, it can be directly disassembled and replaced with a new wear-resistant plate.
[0023] Such as Figure 3-Figure 6 As shown, the pick seat 7 is arranged in a helical line on the outer surface of the cutting head 4, the pick 6 ...
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The invention relates to the coal mine roadway drivage machinery, in particular to a cutting head structure for a tunneling machine. A cutting head is connected with a packing base of a tunneling machine through a bolt on the rear end part of the packing base, and a detachable wear-resisting plate is arranged on the rear end part of the packing base. Pick boxes are arranged on outer circular surface of the cutting head according to a spiral line arranging way, point-attack picks are arranged on a point-attack base, and a connecting plate is welded on the back of the point-attack picks base and the point-attack picks. The cutting head structure is applied, the wear-resisting plate arranged on the rear end part of the outer circle of the packing base and a stock guide plate arranged on the outer surface of the cutting head are easy to detach and replace at any time. The cutting head structure can solve the problem that the cutting head of the prior tunneling machine is worn seriously in cutting process (in particular to cut semi-coal-rock and whole rock); in addition, the cutting head is applied to bring greater economic benefits for users.
Description
technical field [0001] The invention relates to a coal mine roadway excavation machine, in particular to a cutting head structure for the roadheading machine. The application of the cutting head structure can make the wear-resistant plate at the rear of the outer circle of the packing seat and the material guide plate on the outer surface of the cutting head easy to disassemble, Replace anytime. Background technique [0002] At present, the roadheader is one of the main equipment of mining machinery, and the cutting head is the main executive component when the roadheader works. When the roadheader is working, the cutting head is used to cut rocks and is the main force-bearing part. In the actual application process, due to long-time work, the material guide plate located behind the pick and the pick seat is severely worn, which accelerates the wear of the pick seat and the pick, which seriously affects the cutting efficiency of the roadheader; The wear-resistant plate on ...
Claims
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IPC IPC(8): E21C25/10
Inventor 梁坚毅侯宝革牛建强李章博
Owner SANY HEAVY EQUIP CO LTD