Limiting device for hydraulic support operating valve
A technology of hydraulic support and limit device, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve problems such as narrow operating space environment, misoperation of valve handle, and narrow space, so as to ensure personnel safety and avoid The effect of misoperation and simple structure
Inactive Publication Date: 2015-11-11
李军安
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Problems solved by technology
In actual work, the operating space environment of the fully mechanized coal mining face is narrow, and the hydraulic support valve group is required to be installed in a position that is convenient for personnel to operate. The control valve group is installed in the middle of the frame during design, but the control valve group used on the hydraulic support does not have any Restrict the hand lever device, and the valve group handle is exposed on the pedestrian passage between the large column of the hydraulic support and the cable trough of the scraper conveyor
Frequent personnel activities on the working face, dark light, narrow space, large coal seam inclination angle or thin coal seam car, when repairing the support or walking under the support, they will involuntarily grasp and rely on foreign objects to balance when they lose their balance. Body, there is a possibility of misoperation of the valve handle due to accidental scratching, extrusion, etc., resulting in damage to equipment, affecting production, and even personal injury accidents
Method used
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Embodiment 1
[0028] see Figure 1-3 , the invention discloses a position limiting device for a hydraulic support operating valve, comprising a connecting rod 1, a connecting plate 2 and a limit rod 3, the connecting rod 1 is fixedly connected to one side of the hydraulic support valve group 4, the connecting plate 2. It is fixedly connected to the other side of the valve group 4 of the hydraulic support. The connecting plate 2 is fixed with a support plate 5, and the support plate 5 is equipped with a fixed shaft sleeve 6, and a fixed shaft is arranged inside the fixed shaft sleeve 6. 7. The limit rod 3 includes a fixed end and a movable end, the fixed end of the limit rod 3 is hinged with the front end of the fixed shaft 7, and the movable end of the limit rod 3 is provided with a locking hole 8, so that The shape and size of the locking hole 8 correspond to the connecting rod 1 , the limiting rod 3 is movably connected with the connecting rod 1 through the locking hole 8 , and the limiti...
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The invention discloses a limiting device for a hydraulic support operating valve. The limiting device comprises a connecting rod, a connecting plate and a limiting rod. The connecting rod is fixedly connected to one side of a hydraulic support valve group, the connecting plate is fixedly connected to the other side of the hydraulic support valve group, a supporting plate is fixed on the connecting plate, a fixed shaft sleeve is installed on the supporting plate, and a fixed shaft is arranged in the fixed shaft sleeve. The limiting rod comprises a fixed end and a movable end, the fixed end of the limiting rod is hinged to the front end of the fixed shaft, and the movable end of the limiting rod is provided with a locking hole. The shape and size of the locking hole correspond to those of the connecting rod, and the limiting rod is movably connected with the connecting rod through the locking hole and provided with a limiting gap. The limiting device is simple to operate, convenient to install, safe and reliable and can effectively avoid misoperation of the hydraulic support valve group.
Description
technical field [0001] The invention relates to the technical field of fully mechanized mining equipment in coal mines, in particular to a hydraulic support control valve limiting device. Background technique [0002] The hydraulic support can effectively support and control the roof of the working face, isolate the collection area, ensure the working space, and can move mechanized along with the advancement of the working face, continuously pushing the shearer and scraper conveyor to the coal wall, It is one of the key equipment of modern comprehensive mechanized coal mining technology. The hydraulic support is mainly composed of three parts: metal components, hydraulic system and anti-fall, anti-skid, frame adjustment and base lifting devices. In addition to columns and various jacks, the hydraulic control system also includes hydraulic support control valve groups, safety valves, hydraulic control check valves, etc. [0003] The hydraulic support operation valve group c...
Claims
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IPC IPC(8): E21D23/16
Inventor 李军安
Owner 李军安