Hydraulic support steering platform

Abstract

A hydraulic support steering platform is provided with a wedge-shaped guide plate, a lifting rotation platform and a forward pulling platform which are connected. An arc convex edge and a guide post are arranged on the guide plate, a lifting rotation hydraulic telescopic arm connected with a lifting rotation sprocket is arranged in the rear of the lifting rotation platform, one end of a lifting rotation chain is connected onto the lifting rotation hydraulic telescopic arm in a positioned manner, a vertical support pulling square box and a vertical bottom lifting square box are erected on the outer side and the inner side of the forward pulling platform respectively, a hydraulic telescopic arm connected with a forward pulling sprocket is hinged to the upper ends of the support pulling square box and the bottom lifting square box, one end of a forward pulling chain is connected onto the forward pulling hydraulic telescopic arm in a positioned manner, and a front topside hydraulic cylinder and a rear topside hydraulic cylinder are hinged onto the forward pulling platform. The force application hydraulic cylinders are reasonably arranged, and the hydraulic support steering platform is simple in structure, high in force application action effectiveness and beneficial to retracement loading of a hydraulic support. The hydraulic support steering platform with the topside hydraulic cylinders is fine in stability when in use, the heights of the forward pulling platform and the forward pulling hydraulic telescopic arm can be adjusted, loading operation is facilitated, and a sprocket and chain transmission device is convenient to use.

Description

technical field [0001] The invention relates to a device used for retracting a complete set of coal mine fully mechanized mining equipment, in particular to a steering platform used for retracting a coal mine fully mechanized mining hydraulic support. Background technique [0002] Coal mine fully mechanized mining hydraulic support is the most important equipment in the coal mine fully mechanized mining equipment. The hydraulic support is placed in front of the fully mechanized mining work to form a coal mining space. The hydraulic support relies on high-pressure liquid as the main power to complete the roof support of the working face, the forward movement of the support, the push conveyor and the goaf treatment. In the complete set of equipment for the fully mechanized mining face, there are many hydraulic supports. According to the size of the working face, there are generally more than one hundred. The hydraulic supports are arranged in a row along the working face. The ...

AI Technical Summary

Problems solved by technology

[0008] 1. There are 4 square plates connected in sequence by nuts on the pull-up platform, and there are extension hydraulic cylinders and positioning pins connected between the back of the rear guide plate and the lifting and turning platform, which makes the structure of the device more complicated;

[0009] 2. The arrangement of the hydraulic cylinders that apply force to the hydraulic support on the lifting and turning platform and the pulling platform is unreasonable. The lifting hydraulic cylinders on the rear table of the lifting and turning platform are two front and rear parallel to the rear of the lifting and turning platform. The components and size are large, and there is redundant mechanical movement during use. The Shunla hydraulic cylinder is inside the plate of the Shunla platform, and it is impossible to pull the hydraulic support to the hydraulic support retraction transport vehicle;

[0010] 3. The hydraulic support steering platform does not have a top hydraulic cylinder, and the stability of the hydraulic support steering platform is not good when in use;

[0011] 4. When in use, the smooth pull platform will sink due to the pressure of the hydraulic support that has passed through many times, and the smooth pull platform will sink into the low-strength soil on the ground, which will reduce the height of the smooth pull platform and affect the smooth pull loading operation;

[0012] 5. The transmission device for the hydraulic cylinder to apply force to the hydraulic support is a pulley and a wire rope. The wire rope will spiral or curl after repeated use, which is inconvenient to use.

Images