Middle lifting mechanism of mining lagging jack equipment

Abstract

The utility model belongs to the technical field of lifting equipment, and particularly relates to a middle lifting mechanism of mining lagging jack equipment, which comprises a trolley, an outer fixing frame, an inner lifting platform, a pitching oil cylinder, a steel wire rope, a lifting oil cylinder and a main gripper mechanism, when the pitching oil cylinder stretches out and draws back, the outer fixing frame can rotate around the hinged position of the outer fixing frame and the trolley; slide ways are arranged on the inner sides of the left frame and the right frame of the outer fixing frame, slide way wheels matched with the slide ways are arranged on the two sides of the inner lifting table, the front side of the inner lifting table is connected with the main gripper mechanism, and the inner lifting table can be controlled to slide in the outer fixing frame through stretching and retracting of the lifting oil cylinder. The problems that a roadway is too small, and limitation of equipment passing through the roadway is high are solved, the problems that a steel arch frame is unstable and inclined to a vertical frame and butt joint is difficult are solved, meanwhile, mechanical construction can be achieved, the problems that the working environment is severe and dangerousness is high when a manual vertical arch is installed are solved, the number of workers is reduced, and the work progress is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hoisting equipment, and particularly relates to an intermediate hoisting mechanism of a mine arch equipment. BACKGROUND

[0002] After the roadway of an underground mine is excavated, steel arches or steel pipe beam concrete supports are needed to reinforce the roadway support to control the stress release and deformation of surrounding rock, and since the cross section of the underground mine tunnel varies and the equipment has limited space, the current roadway arch operation is all completed by manual work on a rack, and the steel arches are quite inconvenient to adjust in posture and are extremely slow to install. The steel arches are prone to tilt during adjustment, which is very unsafe. Moreover, the rack needs to be moved after each construction cycle, and different racks of different sizes need to be set up for different roadways, which requires a large number of workers and has a high labor intensity and poor construction environment. However, due to the complex geological conditions of underground mines, large mining depth, poor working environment, and high risk, the number of workers engaged in this work is gradually decreasing. SUMMARY

[0003] To solve the above technical problems, the utility model provides an intermediate hoisting mechanism of a mine arch equipment, which comprises a trolley, an outer fixed frame, an inner lifting platform, a pitch cylinder, a steel wire rope, a lifting cylinder and a main gripper mechanism, the lower end of the outer fixed frame is hinged to the trolley, the fixed end of the pitch cylinder is connected to the trolley, and the extension end of the pitch cylinder is hinged to the rear side of the outer fixed frame, and when the pitch cylinder extends and retracts, the outer fixed frame can rotate around the hinge between the outer fixed frame and the trolley.

[0004] The inner sides of the left and right frames of the outer fixed frame are provided with sliding tracks, and the two sides of the inner lifting platform are provided with sliding track wheels matched with the sliding tracks, and the front side of the inner lifting platform is connected to the main gripper mechanism.

[0005] The fixed end of the lifting cylinder is fixedly connected to the lower part of the rear side of the outer fixed frame, and the extension end of the lifting cylinder faces the upper part of the outer fixed frame, the extension end of the lifting cylinder is provided with a rotating shaft, the rotating shaft is provided with a pulley, one end of the steel wire rope is fixedly connected to the lower part of the outer fixed frame, and the other end passes through the pulley to connect the inner lifting platform, and the extension of the lifting cylinder can control the sliding of the inner lifting platform in the outer fixed frame.

[0006] Further, the main gripper mechanism comprises a framework, two gripper oil cylinders and four grippers, the two grippers are arranged on the two sides of the framework, and the grippers are arranged perpendicularly to the framework, the middle part of the gripper is hingedly connected to the front and back of the framework, the gripper oil cylinders are arranged on the lower side of the framework in parallel, the fixed end of the gripper oil cylinder is close to the gripper on the rear side of the framework, the telescopic end of the gripper oil cylinder is close to the gripper on the front side of the framework, and the lower part of the gripper is hingedly connected to the telescopic end or the fixed end of the corresponding gripper oil cylinder, the rotation of the gripper around the hinge between the gripper and the framework is controlled by controlling the telescopic movement of the gripper oil cylinder, and the operation of grabbing and placing the arch is realized.

[0007] Further, the upper part of the gripper is provided with opposite hooks, and the inner side of the gripper and the upper side of the framework form a position for placing the arch.

[0008] Further, the upper side of the framework is provided with a groove conforming to the cross-sectional shape of the arch, and the inner side of the groove is provided with a buffer pad plate, the buffer pad plate can be adjusted in thickness and size, and is used for adapting to different models of the arch.

[0009] The utility model also includes other devices or components that can make the intermediate lifting mechanism of the mine arch equipment normally used, which are all conventional technical means in the field. In addition, the gripper and the framework not specified in the utility model are all conventional technical means in the field.

[0010] The working principle of the utility model is that, when the device is used, the trolley needs to be moved to the lower side of the mine tunnel where the arch needs to be installed, the gripper oil cylinder is controlled to make the gripper clamp the arch placed on the framework, the pitch oil cylinder and the lifting oil cylinder are adjusted, the inner lifting platform is lifted, the arch is moved to the corresponding position and installed.

[0011] The utility model has the advantages that the device provides a kind of intermediate lifting mechanism of mine arch equipment, solves the problem that the roadway is too small and the equipment has high limitation through the roadway, and solves the problem that steel arch is not stable to stand and is inclined and difficult to butt joint, and simultaneously, the device can realize mechanized construction, solves the problems of poor working environment and high risk of installing manual standing arch, reduces the number of staff, and speeds up the work progress. DRAWINGS

[0012] The utility model is further described below in connection with drawings and embodiments.

[0013] Fig. 1 It is the overall structure schematic diagram of the utility model.

[0014] Fig. 2 It is the structure schematic diagram of main gripper mechanism and lifting oil cylinder in the utility model.

[0015] Fig. 3 It is the working schematic diagram when the arch is gripped in the utility model. DETAILED DESCRIPTION

[0016] The utility model will be clearly described below in combination with the drawings and specific embodiments in the embodiments of the utility model, the description herein is only used to explain the utility model, but not as a limitation on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor, any modification, equivalent replacement, improvement etc. should be included in the protection scope of the utility model.

[0017] Embodiment

[0018] As Figs. 1-3 shown, the utility model provides a kind of middle lifting mechanism of mine arch equipment, including trolley (not shown in drawing), outer fixed frame 1, inner lifting platform 2, pitch oil cylinder (not shown in drawing), steel wire rope 7, lifting oil cylinder 3 and main gripper mechanism, the lower end of outer fixed frame 1 is hinged on trolley, the fixed end of pitch oil cylinder is connected with trolley, and the telescopic end of pitch oil cylinder is hinged with the rear side of outer fixed frame 1, when pitch oil cylinder telescopes, outer fixed frame 1 can rotate around the hinge of outer fixed frame 1 and trolley.

[0019] The inner side of outer fixed frame 1 is equipped with slide 4, and the two sides of inner lifting platform 2 are equipped with slide wheel 5 matched with slide 4, and the front side of inner lifting platform 2 is connected with main gripper mechanism.

[0020] The fixed end of lifting oil cylinder 3 is fixedly connected with the rear side lower part of outer fixed frame 1, and the telescopic end of lifting oil cylinder 3 is towards the upper part of outer fixed frame 1, and the telescopic end of lifting oil cylinder 3 is equipped with rotating shaft (not shown in drawing), and pulley 6 is equipped on rotating shaft, one end of steel wire rope 7 is fixedly connected with the lower part of outer fixed frame 1, and the other end passes through pulley 6 and connects inner lifting platform 2, and the telescopic of lifting oil cylinder 3 can control inner lifting platform 2 slide in outer fixed frame 1.

[0021] As further measures of the utility model, the main gripper mechanism comprises a framework 8, two gripper oil cylinders 9 and four grippers 10, the grippers 10 are arranged on both sides of the framework in pairs, and the grippers 10 are all arranged perpendicularly to the framework 8, the middle part of the gripper 10 is hingedly connected to the front and back of the framework 8, the gripper oil cylinders 9 are arranged on the lower side of the framework 8 in parallel, the fixed end of the gripper oil cylinder 9 is close to the gripper 10 on the rear side of the framework, the telescopic end of the gripper oil cylinder 9 is close to the gripper 10 on the front side of the framework, the lower part of the gripper 10 is hingedly connected to the telescopic end or the fixed end of the corresponding gripper oil cylinder 9, the rotation of the gripper 10 around the hinge between the gripper 10 and the framework 8 is controlled by controlling the telescopic movement of the gripper oil cylinder 9, so that the operation of grabbing and placing the arch frame is realized; the upper part of the gripper 10 is provided with a pair of facing hooks 11, and the position formed by the inner side of the gripper 10 and the upper side of the framework 8 is used for placing the arch frame; the upper side of the framework 8 is provided with a groove 12 conforming to the cross-sectional shape of the arch frame, the inner side of the groove 12 is provided with a buffer pad 13, the thickness and size of the buffer pad 13 can be adjusted, so as to adapt to arch frames of different models.

[0022] The working principle of the utility model is that, when the device is used, the trolley needs to be moved to the lower side of the mine tunnel where the arch frame needs to be installed, the gripper oil cylinder 9 is controlled to make the gripper 10 clamp the arch frame placed on the framework 8, the pitch cylinder and the lifting cylinder 3 are adjusted, the inner lifting platform 2 is lifted, the arch frame is moved to the corresponding position and installed.

[0023] The above has described the embodiments of the utility model, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A middle lifting mechanism of a mine arch equipment, comprising a trolley, an outer fixed frame, an inner lifting platform, a pitch cylinder, a steel wire rope, a lifting cylinder and a main gripper mechanism, characterized in that: a lower end of the outer fixed frame is hinged to the trolley, a fixed end of the pitch cylinder is connected to the trolley, and a telescopic end of the pitch cylinder is hinged to a rear side of the outer fixed frame, and when the pitch cylinder is telescoped, the outer fixed frame can rotate around the hinge between the outer fixed frame and the trolley; a slide is arranged on an inner side of a left and right frame of the outer fixed frame, and the inner lifting platform is provided with slide wheels matched with the slide; a front side of the inner lifting platform is connected to the main gripper mechanism; 2. A mine roof support apparatus according to claim 1 wherein: a fixed end of the lifting cylinder is fixedly connected to a lower part of the rear side of the outer fixed frame, and a telescopic end of the lifting cylinder is directed to an upper part of the outer fixed frame, the telescopic end of the lifting cylinder is provided with a rotating shaft, the rotating shaft is provided with a pulley, one end of the steel wire rope is fixedly connected to a lower part of the outer fixed frame, and the other end of the steel wire rope passes through the pulley to be connected to the inner lifting platform, and the lifting cylinder can control the inner lifting platform to slide in the outer fixed frame.

3. A mine arch equipment intermediate lifting mechanism according to claim 2, characterized in that: The main gripper mechanism comprises a framework, two gripper cylinders and four grippers, the grippers are arranged on two sides of the framework in pairs, and the grippers are arranged perpendicularly to the framework, a middle part of the gripper is hinged to a front and back of the framework, respectively, the gripper cylinders are arranged on a lower side of the framework in parallel, a fixed end of the gripper cylinder is close to the gripper on the rear side of the framework, and a telescopic end of the gripper cylinder is close to the gripper on the front side of the framework, and a lower part of the gripper is hinged to the telescopic end or the fixed end of the corresponding gripper cylinder.

4. A mine roof support apparatus according to claim 3 wherein: Opposite hooks are arranged on upper parts of the grippers, and a position formed by the inner side of the gripper and an upper side of the framework is used for placing the arch. A recess conforming to a cross-sectional shape of the arch is arranged on the upper side of the framework, and a buffer pad is arranged on an inner side of the recess.

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