Temporary supporting device for secondary transportation of heading machine

Abstract

The utility model provides a heading machine secondary transportation temporary supporting device which comprises a telescopic arm, a lifting oil cylinder, a fixed arm and a supporting assembly, the telescopic arm is connected with the upper end of a secondary transportation connecting frame, the front end of the telescopic arm is connected with a cylinder barrel of the lifting oil cylinder, the piston end of the lifting oil cylinder is connected with the front portion of the fixed arm, and an inner arm is arranged in the fixed arm. The rear end of the protective top plate is fixedly connected with the inner arm, the front end of the protective top plate is rotatably connected with the front turning plate, the lower end of the protective top plate is connected with a cylinder barrel of the rotating oil cylinder, and a piston rod of the rotating oil cylinder is connected with the front turning plate. The device is large in supporting area and large in working space of workers, potential safety hazards are eradicated, meanwhile, the working efficiency is guaranteed, and the underground excavation progress is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heading machine, especially relates to a heading machine second transportation temporary support device. BACKGROUND

[0002] China's coal mine is mainly underground mining, needs to excavate a large number of laneways in the underground, adopts laneway support to keep the laneway unobstructed and the surrounding rock stable, which is of great significance to the construction and production of coal mine. The basic purpose of supporting the laneway is to alleviate and reduce the movement of surrounding rock, so that the cross section of the laneway does not become too small, and at the same time, prevent the surrounding rock from falling after being scattered and damaged. In order to make the laneway support play a positive role in the process of adjusting and controlling the deformation of surrounding rock, the support should be installed before the surrounding rock is loose and damaged, so that the support can bear the load together with the surrounding rock when the surrounding rock still has self-bearing capacity. After the working face is mined by using the heading machine, manual operation is needed to support the laneway permanently. In this process, the workers must work in the most dangerous area at the front of the laneway, which faces great safety hazards. Temporary support is usually needed to ensure the safety of the workers, and the temporary support will be removed after the laneway is stable, and the mining will continue. China Utility Model CN 218953341 U discloses a heading machine-mounted temporary support device. The base is installed on the heading machine, the rotating oil cylinder is installed on the base, the lower end of the support oil cylinder is connected with the rotating oil cylinder, the upper end of the support oil cylinder is hinged to one side of the lower end of the support frame, the other side of the lower end of the support frame is hinged to one end of the diagonal support oil cylinder, and the other end of the diagonal support oil cylinder is hinged to the middle part of the support oil cylinder. The above-mentioned support device is arranged on the heading machine, which leads to small support space, limited working space for workers, inconvenient manual operation, low support operation efficiency and influence on the mining progress. SUMMARY

[0003] The utility model solves the technical problem of small support space and low manual support efficiency of the heading machine temporary support device.

[0004] The utility model provides a kind of heading machine second transportation temporary support device, including heading machine, heading machine includes body, is set in the front part of body and is used for heading cutting arm, the second transportation connecting frame for transporting material is set in the tail of body, it is characterized in that, still include telescopic arm, lifting cylinder, fixed arm, support assembly, the telescopic arm is connected with the upper end of second transportation connecting frame by rotating base, the telescopic arm front end is connected with the upper part of the cylinder wall of lifting cylinder, the piston end of lifting cylinder is connected with the front part of fixed arm, inner arm is set in fixed arm, telescopic cylinder is equipped in the rear end of fixed arm, telescopic cylinder front end is connected with inner arm, drives the front extension and retraction of inner arm, the support assembly includes protective top plate, front flap, rotating oil cylinder, protective top plate rear end is fixedly connected with inner arm, protective top plate front end is rotatably connected with front flap, protective top plate lower end is connected with the cylinder tube of rotating oil cylinder, and the piston rod of rotating oil cylinder is connected with front flap.

[0005] Further, the telescopic arm is in the elongated state, drives the support assembly to move forward, the inner arm is in the elongated state, drives the support assembly to move forward again, the lifting oil cylinder is in the elongated state, drives the support assembly to move upward, and roof support is carried out.

[0006] Further, when the piston rod of the rotating oil cylinder is elongated, the front flap is in the vertical state and is used for supporting the face head-on, and when the piston rod of the rotating oil cylinder is shortened, the front flap is in the folded state.

[0007] Further, the telescopic arm comprises two sections of arms, three sections of arms or four sections of arms, and adjacent two sections of telescopic arms are slidingly connected.

[0008] Further, the upper end surface of the protective roof is provided with a supporting horizontal rod for being in contact with the roadway roof.

[0009] Further, the protective roof comprises a plurality of horizontal beams and a plurality of steel joists, and the steel joists are connected with the horizontal beams perpendicularly.

[0010] Further, the front flap comprises a plurality of connecting rods and a plurality of wooden boards, the connecting rods are arranged in parallel, the wooden boards are connected with the connecting rods perpendicularly, and the wooden boards are fixed on the connecting rods along the length direction of the connecting rods.

[0011] The tunneling machine secondary transportation temporary support device has the following beneficial effects: when temporary support is carried out, the telescopic arm is in the elongated state, drives the support assembly to move forward, simultaneously, the inner arm is in the elongated state, drives the support assembly to move forward again, then the lifting oil cylinder is in the elongated state, drives the support assembly to move upward, and roof support is carried out, simultaneously, the piston rod of the rotating oil cylinder is elongated, drives the front flap to be in the vertical state and is used for supporting the face head-on, the device has large support area and large worker operation space, not only eliminates the safety hidden danger, but also ensures the working efficiency and ensures the underground mining progress. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 , the tunneling machine secondary transportation temporary support device support state schematic view.

[0013] Figure 2 , the tunneling machine secondary transportation temporary support device folding state schematic view. DETAILED DESCRIPTION

[0014] Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by a person skilled in the art without creative work should belong to the protection scope of the present application.

[0015] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0016] As shown in Figure 1 and 2 A tunneling machine secondary transport temporary support device, comprising a tunneling machine, a telescopic arm 2, a lifting oil cylinder 3, a fixed arm 4, a support assembly, the tunneling machine comprising a machine body, a cutting arm arranged at the front of the machine body for tunneling, and a secondary transport connecting frame 1 arranged at the tail of the machine body for transporting materials.

[0017] The telescopic arm 2 is connected with the upper end surface of the secondary transport connecting frame 1 through a rotating base, the telescopic arm 2 comprises two sections of arms, three sections of arms or four sections of arms, the adjacent two sections of telescopic arms are slidingly connected, the front end of the telescopic arm 2 is connected with the upper part of the cylinder sidewall of the lifting oil cylinder 3, the lifting oil cylinder 3 is vertically arranged, the piston end of the lifting oil cylinder 3 is connected with the front part of the fixed arm 4, an inner arm is arranged inside the fixed arm 4, a telescopic oil cylinder is arranged at the rear end of the fixed arm 4, the front end of the telescopic oil cylinder is connected with the inner arm to drive the inner arm to stretch forward and retract.

[0018] The support assembly comprises a protective top plate 5, the upper end surface of the protective top plate 5 is provided with a top supporting cross bar 7 which is in contact with the roadway top plate, the rear end of the protective top plate 5 is fixedly connected with the inner arm, the front end of the protective top plate 5 is rotatably connected with a front flap 6, the front flap 6 is used for supporting the face heading, the lower end of the protective top plate 5 is connected with the cylinder of a rotating oil cylinder, the piston rod of the rotating oil cylinder is connected with the front flap 6, when the piston rod of the rotating oil cylinder is elongated, the front flap 6 is driven to be in a vertical state, when the piston rod of the rotating oil cylinder is shortened, the front flap 6 is driven to be in a folded state. In the embodiment, the protective top plate 5 comprises a plurality of cross beams and a plurality of steel joists, the steel joists are connected with the cross beams perpendicularly. The front flap 6 comprises a plurality of connecting rods and wooden boards, the plurality of connecting rods are arranged in parallel, the wooden boards are connected with the connecting rods perpendicularly, and the plurality of wooden boards are fixed on the connecting rods along the length direction of the connecting rods.

[0019] After the coal is discharged from the tunneling face, the telescopic arm 2 is in the elongated state to drive the supporting assembly to move forward, and the inner arm is in the elongated state to drive the supporting assembly to move forward again, then the lifting oil cylinder 3 is in the elongated state to drive the supporting assembly to move upward to support the roof, and the piston rod of the rotating oil cylinder is elongated to drive the front flap 6 to be in the vertical state to support the face, when the workers complete the support, the piston rod of the rotating oil cylinder is shortened to drive the front flap 6 to be in the folded state, and the lifting oil cylinder, the inner arm and the telescopic arm are in the contracted state to drive the supporting assembly to move downward and backward, and the subsequent mining of the tunneling machine is not affected.

[0020] The other parts not described in the utility model are all the prior art, so they are not described here.

[0021] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the utility model without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A temporary support device for a roadheader, comprising a roadheader, which comprises a machine body, a cutting arm arranged at the front of the machine body for cutting, and a secondary transport connection frame arranged at the tail of the machine body for transporting material, characterized in that, It also includes telescopic arm, lifting oil cylinder, fixed arm, support assembly, The telescopic arm is connected with the upper end of the second transport connecting frame through a rotating base, the front end of the telescopic arm is connected with the upper part of the side wall of the cylinder of the lifting oil cylinder, the piston end of the lifting oil cylinder is connected with the front part of the fixed arm, an inner arm is arranged in the fixed arm, a telescopic oil cylinder is arranged at the rear end of the fixed arm, the front end of the telescopic oil cylinder is connected with the inner arm, and the inner arm is driven to stretch out and retract, The support assembly includes a protective top plate, a front turning plate and a rotating oil cylinder, the rear end of the protective top plate is fixedly connected with the inner arm, the front end of the protective top plate is rotationally connected with the front turning plate, the lower end of the protective top plate is connected with the cylinder barrel of the rotating oil cylinder, and the piston rod of the rotating oil cylinder is connected with the front turning plate.

2. The temporary support device according to claim 1, characterized in that, The telescopic arm is in an elongated state, drives the support assembly to move forward, the inner arm is in an elongated state, drives the support assembly to move forward again, and the lifting oil cylinder is in an elongated state, drives the support assembly to move upward, and the roof support is performed.

3. The temporary support device according to claim 1, characterized in that, When the piston rod of the rotating oil cylinder is elongated, the front turning plate is in a vertical state and is used for supporting the face end, and when the piston rod of the rotating oil cylinder is shortened, the front turning plate is in a folded state.

4. The temporary support device according to claim 1, characterized in that, The telescopic arm includes two sections of arms, three sections of arms or four sections of arms, and adjacent two sections of telescopic arms are slidingly connected.

5. The temporary support device according to claim 1, characterized in that, The upper end surface of the protective top plate is provided with a roof supporting horizontal rod for contacting with the roof of the roadway.

6. The temporary support device according to claim 1, wherein The protective top plate includes a plurality of cross beams and a plurality of steel joists, and the steel joists are connected with the cross beams perpendicularly.

7. The temporary support device according to claim 1, characterized in that, The front turning plate includes a plurality of connecting rods and a plurality of wooden plates, the connecting rods are arranged in parallel, the wooden plates are connected with the connecting rods perpendicularly, and the wooden plates are fixed on the connecting rods along the length direction of the connecting rods.

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