Machine-mounted forepoling device of heading machine for coal mine

Abstract

The utility model relates to the technical field of coal mine tunneling, in particular to an onboard advance support device of a tunneling machine for a coal mine, which is convenient for stable support, improves the working efficiency and enhances the practicability of the device. Comprising a heading machine body, a supporting mechanism comprises a supporting plate, two side plates are rotationally installed on the heading machine body, the inner ends of the two side plates are connected through a connecting rod, a first connecting ring is rotationally installed on the connecting rod, a first hydraulic cylinder is fixedly installed on the first connecting ring, and the other end of the first hydraulic cylinder is hinged to the top end of the heading machine body; the two ends of the rotating rod are rotationally connected with the inner ends of the two side plates correspondingly, two second connecting rings are rotationally installed on the connecting rod, second hydraulic cylinders are fixedly installed on the two second connecting rings correspondingly, the top ends of the two second hydraulic cylinders are hinged to the bottom end of the supporting plate, and the auxiliary mechanism is installed on the heading machine body and used for assisting the supporting mechanism in supporting operation. The extension mechanism is installed on the supporting plate and used for increasing the length.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine tunneling, in particular to the tunneling machine on-board advanced support device for coal mine. BACKGROUND

[0002] The tunneling machine on-board advanced support for coal mine is a temporary support device installed on the tunneling machine, mainly used for solving the temporary support safety problem in the tunneling process, which is assembled in the upper middle part of the cantilever of the tunneling machine, simple in structure, small in modification amount of the tunneling machine, and does not interfere with the normal cutting operation function of the tunneling machine.

[0003] For example, the utility model patent with the patent number CN204591270U discloses a kind of hydraulic machine on-board folding advanced support device for tunneling machine, including main frame, its characterized in that: two side frames are arranged on the two sides of main frame by pivot, front frame is arranged on the front end of main frame by pivot, connecting seat is arranged in the lower part of main frame, side oil cylinder is hingedly arranged on the two sides of connecting seat, the piston rod of two side oil cylinders is respectively hingedly connected with two side frames;The rear end of main frame is provided with mounting bracket below.

[0004] The above-mentioned prior art is found in use that the utility model takes tunneling machine as carrying platform, is arranged on tunneling machine cutting arm by mounting bracket, can realize tunneling and supporting cross operation by hydraulic control, when tunneling operation, temporary support folding shrinks to the above of tunneling machine cutting cover plate, carries out protection operation, but one end of mounting bracket is connected with lifting oil cylinder and angle oil cylinder, the other end is in suspended state, therefore the support effect of part of main frame is poor, there is security risk, reduces work efficiency, thereby leading to poor practicability. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] To solve the above technical problems, the utility model provides a kind of tunneling machine on-board advanced support device for coal mine, which is convenient to stabilize support, improve work efficiency and enhance practicability.

[0007] (II) technical scheme

[0008] To achieve the above object, the present application provides the following technical solutions: The coal mine heading machine on-board advance support device, including the heading machine body, the support mechanism includes a support plate, the heading machine body is rotatably installed with two side plates, the two side plates are connected through a connecting rod, the connecting rod is rotatably installed with a first connecting ring, the first connecting ring is fixedly installed with a first hydraulic cylinder, the other end of the first hydraulic cylinder is hingedly connected with the top end of the heading machine body, the support plate is fixedly installed with a rotating rod, the two ends of the rotating rod are rotatably connected with the inner ends of the two side plates, the connecting rod is rotatably installed with two second connecting rings, the two second connecting rings are fixedly installed with two second hydraulic cylinders, the top ends of the two second hydraulic cylinders are hingedly connected with the bottom end of the support plate, the auxiliary mechanism is installed on the heading machine body, and is used for assisting the support mechanism to support the operation, and the extension mechanism is installed on the support plate and is used for lengthening.

[0009] By adopting the above technical scheme, when supporting, the first hydraulic cylinder is started, the first hydraulic cylinder is elongated, the angle between the two side plates and the heading machine body is changed, then the second hydraulic cylinder is started, the support plate is counterclockwise rotated by the second hydraulic cylinder, the support plate performs the supporting operation, the first hydraulic cylinder and the second hydraulic cylinder cooperate to enhance the supporting effect of the support plate, and the auxiliary mechanism can also improve the stability of the device, the process realizes the process of facilitating stable support, improves the working efficiency, and thus the practicality is enhanced.

[0010] Further, the auxiliary mechanism includes a top plate, the top plate is fixedly installed on the heading machine body, the top plate is fixedly installed with a third hydraulic cylinder, and the third hydraulic cylinder is fixedly installed with a top rod.

[0011] By adopting the above technical scheme, the third hydraulic cylinder is started, the top rod is lifted by the third hydraulic cylinder, and is in contact with the two side plates, so that the stability is improved.

[0012] Further, the top rod is provided with two protective pads, and the two protective pads are in contact with the two side plates, respectively.

[0013] By adopting the above technical scheme, the protective pads can avoid the direct contact between the side plates and the top rod, and improve the service life of the top rod.

[0014] Further, the bottom end of the top plate is fixedly installed with a rib plate, and the rib plate is fixedly connected with the heading machine body.

[0015] By adopting the above technical scheme, the rib plate can reinforce the connection between the top plate and the heading machine body, thereby improving the stability.

[0016] Further, the extension mechanism includes an extension plate, a fourth hydraulic cylinder and two L-shaped plates are installed on the support plate, the extension plate is fixedly installed on the output end of the fourth hydraulic cylinder, and the extension plate is attached to the two L-shaped plates.

[0017] By adopting the above technical scheme, the fourth hydraulic cylinder can drive the extension plate to extend, and the supporting range is lengthened.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the coal mine heading machine on-board advanced support device provided by the application has the following beneficial effects:

[0020] When supporting, the first hydraulic cylinder is started, the first hydraulic cylinder is elongated, the angle of the two side plates and the heading machine body is changed, then the second hydraulic cylinder is started, the second hydraulic cylinder drives the support plate to rotate counterclockwise, the support plate performs the supporting operation, the first hydraulic cylinder and the second hydraulic cylinder cooperate to enhance the supporting effect of the support plate, and the auxiliary mechanism can also improve the stability of the device, the process realizes the process of facilitating stable support, improves the working efficiency, and thus the practicality is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the shaft side structure schematic view of the utility model;

[0022] Figure 2 is the right lower side structure schematic view of the utility model;

[0023] Figure 3 is the partial section structure schematic view of the utility model;

[0024] Figure 4 is the main view section structure schematic view of the utility model.

[0025] Markings in the drawings: 1, heading machine body;2, support plate;3, side plate;4, connecting rod;5, first connecting ring;6, first hydraulic cylinder;7, rotating rod;8, second connecting ring;9, second hydraulic cylinder;10, top plate;11, third hydraulic cylinder;12, top rod;13, protective pad;14, rib plate;15, extension plate;16, L-shaped plate;17, fourth hydraulic cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.

[0027] Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0028] Embodiment one

[0029] Please refer to Figures 1-4, the coal mine heading machine on-board advance support device, including heading machine body, the support mechanism includes the support plate, the heading machine body is rotatably installed with two side plates, the two side plates are connected through the connecting rod, the connecting rod is rotatably installed with the first connecting ring, the first connecting ring is fixedly installed with the first hydraulic cylinder, the other end of the first hydraulic cylinder is hinged with the top end of the heading machine body, the support plate is fixedly installed with the rotating rod, the two ends of the rotating rod are rotatably connected with the inner end of the two side plates, the connecting rod is rotatably installed with two second connecting rings, the two second connecting rings are fixedly installed with the second hydraulic cylinder, the top end of the two second hydraulic cylinders is hinged with the bottom end of the support plate, the auxiliary mechanism includes the top plate, the top plate is fixedly installed on the heading machine body, the top plate is fixedly installed with the third hydraulic cylinder, the third hydraulic cylinder is fixedly installed with the top rod, the top rod is provided with two protective pads, the two protective pads are in contact with the two side plates respectively, the protective pad can avoid the direct contact between the side plate and the top rod, improve the service life of the top rod, the extension mechanism includes the extension plate, the support plate is installed with the fourth hydraulic cylinder and two L-shaped plates, the extension plate is fixedly installed on the output end of the fourth hydraulic cylinder, the extension plate is attached with the two L-shaped plates, the fourth hydraulic cylinder can drive the extension plate to extend, the support range is extended, when supporting, the first hydraulic cylinder is started, the first hydraulic cylinder is elongated, the angle between the two side plates and the heading machine body is changed, then the second hydraulic cylinder is started, the second hydraulic cylinder drives the support plate to rotate counterclockwise, so that the support plate performs the supporting operation, the first hydraulic cylinder and the second hydraulic cylinder cooperate to enhance the supporting effect of the support plate, the third hydraulic cylinder is started, the third hydraulic cylinder drives the top rod to rise and contact with the two side plates, the auxiliary mechanism can also improve the stability of the device, the process realizes the process of convenient and stable support, improves the work efficiency, and enhances the practicality.

[0030] Please refer to Figures 1-4 The bottom end of the top plate is fixedly installed with a rib plate, and the rib plate is fixedly connected with the heading machine body.

[0031] The coal mine heading machine on-board advance support device of the utility model, when working, when supporting, the first hydraulic cylinder is started, the first hydraulic cylinder is elongated, the angle between the two side plates and the heading machine body is changed, then the second hydraulic cylinder is started, the second hydraulic cylinder drives the support plate to rotate counterclockwise, so that the support plate performs the supporting operation, the first hydraulic cylinder and the second hydraulic cylinder cooperate to enhance the supporting effect of the support plate, the third hydraulic cylinder is started, the third hydraulic cylinder drives the top rod to rise and contact with the two side plates, the auxiliary mechanism can also improve the stability of the device, the process realizes the process of convenient and stable support.

[0032] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A machine-mounted forepoling device for a coal mine heading machine, comprising a heading machine body (1), characterized in that , also include: Supporting mechanism, the supporting mechanism includes the support plate (2), two side plates (3) are rotatably installed on the tunneling machine body (1), the inner end of two side plates (3) is connected through the connecting rod (4), the first connecting ring (5) is rotatably installed on the connecting rod (4), the first hydraulic cylinder (6) is fixedly installed on the first connecting ring (5), the other end of the first hydraulic cylinder (6) is hinged with the top end of the tunneling machine body (1), the rotating rod (7) is fixedly installed on the support plate (2), the two ends of the rotating rod (7) are rotatably connected with the inner end of two side plates (3), two second connecting rings (8) are rotatably installed on the connecting rod (4), the second hydraulic cylinder (9) is fixedly installed on two second connecting rings (8), the top end of two second hydraulic cylinders (9) is hinged with the bottom end of the support plate (2); Auxiliary mechanism, the auxiliary mechanism is installed on the tunneling machine body (1), for assisting the supporting mechanism to support the work; Extension mechanism, the extension mechanism is installed on the support plate (2), for lengthening.

2. A machine mounted advance support device for a coal mine roadheader as claimed in claim 1 characterised in that: The auxiliary mechanism includes the top plate (10), the top plate (10) is fixedly installed on the tunneling machine body (1), the third hydraulic cylinder (11) is fixedly installed on the top plate (10), and the top rod (12) is fixedly installed on the third hydraulic cylinder (11).

3. A machine mounted advance support device for a coal mine roadheader as claimed in claim 2 characterised in that: Two protective pads (13) are arranged on the top rod (12), and two protective pads (13) are in contact with two side plates (3) respectively.

4. A machine mounted advance support device for a coal mine roadheader as claimed in claim 3 wherein: The bottom end of the top plate (10) is fixedly installed with the rib plate (14), and the rib plate (14) is fixedly connected with the tunneling machine body (1).

5. A machine mounted advance support device for a coal mine roadheader as claimed in claim 4 wherein: The extension mechanism includes the extension plate (15), the fourth hydraulic cylinder (17) and two L-shaped plates (16) are installed on the support plate (2), the extension plate (15) is fixedly installed on the output end of the fourth hydraulic cylinder (17), and the extension plate (15) is attached to two L-shaped plates (16).

Images