Vehicle-mounted advance support device of cantilever type excavator
A cantilever-type roadheader and advanced support technology, which is applied in the direction of cutting machinery, mine roof support, mining equipment, etc., can solve the problems of small support area, easy to fall off, imperfect combination of roadheader, etc., and achieve the support area Big, safe effect
Inactive Publication Date: 2011-09-14
兖矿能源集团股份有限公司
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Problems solved by technology
[0003] At present, the advance support device of the roadheader has not been widely used. The reason is that the product is immature. The main problems are as follows: 1. The combination is not perfect, and the volume after folding is relatively large, which affects the cutting sight of the driver of the roadheader; 2. The support area is relatively small; 3. The adaptability of the roof is poor, especially when the roof is inclined seriously; 4. In the support When lifting the steel belt anchor net, it is easy to fall off
Method used
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[0022] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes the left and right outriggers 1 installed on the cutting part of the roadheader, the lifting cylinder 2 and the overturning cylinder 3. 2 is installed upside down in the outrigger 1, the piston rod is fixed to the lower part of the outrigger 1, and the lower part of the outrigger 1 is hinged on the pin shaft at the piston rod of the lifting cylinder 2 in the cutting part of the roadheader, and the side ear seat 4 of the outrigger 1 is connected to the overturned The piston rods of the oil cylinder 3 are connected, and the outer side of the lower part of the cylinder body of the lifting oil cylinder 2 is provided with an ear seat 6 connected with the folding oil cylinder 5, and the supporting leg 1 and the folding oil cylinder 4 are respectively connected with the support tray 8 through the cross hinge block 7; The protective tray 8 includes a main tray 9 and an auxil...
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The invention relates to an excavator support device and in particular discloses a vehicle-mounted advance support device of a cantilever type excavator. The vehicle-mounted advance support device of the cantilever type excavator comprises left and right support legs, lifting oil cylinders and overturning oil cylinders, wherein the left and right support legs are arranged at cutting parts of the excavator. The vehicle-mounted advance support device is characterized in that: the lifting oil cylinders are inversely arranged in the support legs; piston rods of the lifting oil cylinders are fixed with the lower parts of the support legs; the lower parts of the support legs are hinged on pin shafts of the piston rods of the lifting oil cylinders at the cutting parts of the excavator; side ear seats of the support legs are connected with the piston rods of the overturning oil cylinders; and the support legs are connected with folding oil cylinders by crossed hinging blocks and support trays respectively. The vehicle-mounted advance support device is large in support area and high in using safety, and can be applied to all types of cantilever type excavators without any modification of the structure of the excavator; and after the device is folded, the support trays lie on cutting protection plates, so the line of sight of an excavator driver for cutting cannot be influenced.
Description
(1) Technical field [0001] The invention relates to a support device for a roadheader, in particular to an airborne advanced support device for a cantilever type roadheader. (2) Background technology [0002] The support work after the tunneling of the roadheader is a difficult, complicated and dangerous work. The main reason is that after the tunneling of the roadheader, an unsupported goaf will be left between the roadheader and the working face. Manual support. However, it is clearly stipulated in the coal mine safety operating regulations that empty top operations are strictly prohibited, so the anchor protection work is carried out simultaneously with the excavation of the roadheader. [0003] At present, advance support devices for roadheaders have not been widely used. The reason is that the products are immature. The main problems are as follows: 1. Most of them are not perfectly combined with the roadheader, and the volume after folding is relatively large, which a...
Claims
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IPC IPC(8): E21D23/04E21D23/16E21C25/06
Inventor 张佃龙姜彪孙强杜传坤高启章步斌
Owner 兖矿能源集团股份有限公司